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 use DXHash;
  34
  35 use strict;
  36 use vars qw($me $pc11_max_age $pc23_max_age
  37                         $last_hour %pings %rcmds
  38                         %nodehops $baddx $badspotter $badnode $censorpc
  39                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  40
  41 $me = undef;                                    # the channel id for this cluster
  42 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  43 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  44
  45 $last_hour = time;                              # last time I did an hourly periodic update
  46 %pings = ();                    # outstanding ping requests outbound
  47 %rcmds = ();                    # outstanding rcmd requests outbound
  48 %nodehops = ();                 # node specific hop control
  49 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  50                                                                 # loads of 'bad things'
  51 $baddx = new DXHash "baddx";
  52 $badspotter = new DXHash "badspotter";
  53 $badnode = new DXHash "badnode";
  54
  55 @checklist =
  56 (
  57  [ qw(c c m bp bc c) ],                 # pc10
  58  [ qw(f m d t m c c h) ],               # pc11
  59  [ qw(c bc m bp bm p h) ],              # pc12
  60  [ qw(c h) ],                                   #
  61  [ qw(c h) ],                                   #
  62  [ qw(c m h) ],                                 #
  63  undef ,                                                # pc16 has to be validated manually
  64  [ qw(c c h) ],                                 # pc17
  65  [ qw(m n) ],                                   # pc18
  66  undef ,                                                # pc19 has to be validated manually
  67  undef ,                                                # pc20 no validation
  68  [ qw(c m h) ],                                 # pc21
  69  undef ,                                                # pc22 no validation
  70  [ qw(d n n n n m c c h) ],             # pc23
  71  [ qw(c p h) ],                                 # pc24
  72  [ qw(c c n n) ],                               # pc25
  73  [ qw(f m d t m c c bc) ],              # pc26
  74  [ qw(d n n n n m c c bc) ],    # pc27
  75  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  76  [ qw(c c n m) ],                               # pc29
  77  [ qw(c c n) ],                                 # pc30
  78  [ qw(c c n) ],                                 # pc31
  79  [ qw(c c n) ],                                 # pc32
  80  [ qw(c c n) ],                                 # pc33
  81  [ qw(c c m) ],                                 # pc34
  82  [ qw(c c m) ],                                 # pc35
  83  [ qw(c c m) ],                                 # pc36
  84  [ qw(c c n m) ],                               # pc37
  85  undef,                                                 # pc38 not interested
  86  [ qw(c m) ],                                   # pc39
  87  [ qw(c c m p n) ],                             # pc40
  88  [ qw(c n m h) ],                               # pc41
  89  [ qw(c c n) ],                                 # pc42
  90  undef,                                                 # pc43 don't handle it
  91  [ qw(c c n m m c) ],                   # pc44
  92  [ qw(c c n m) ],                               # pc45
  93  [ qw(c c n) ],                                 # pc46
  94  undef,                                                 # pc47
  95  undef,                                                 # pc48
  96  [ qw(c m h) ],                                 # pc49
  97  [ qw(c n h) ],                                 # pc50
  98  [ qw(c c n) ],                                 # pc51
  99  undef,
 100  undef,
 101  undef,
 102  undef,
 103  undef,
 104  undef,
 105  undef,
 106  undef,
 107  undef,                                                 # pc60
 108  undef,
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,
 115  undef,
 116  undef,
 117  undef,                                                 # pc70
 118  undef,
 119  undef,
 120  [ qw(d n n n n n n m m m c c h) ],     # pc73
 121  undef,
 122  undef,
 123  undef,
 124  undef,
 125  undef,
 126  undef,
 127  undef,                                                 # pc80
 128  undef,
 129  undef,
 130  undef,
 131  [ qw(c c c m) ],                               # pc84
 132  [ qw(c c c m) ],                               # pc85
 133 );
 134
 135 # use the entry in the check list to check the field list presented
 136 # return OK if line NOT in check list (for now)
 137 sub check
 138 {
 139         my $n = shift;
 140         $n -= 10;
 141         return 0 if $n < 0 || $n > @checklist;
 142         my $ref = $checklist[$n];
 143         return 0 unless ref $ref;
 144
 145         my $i;
 146         shift;    # not interested in the first field
 147         for ($i = 0; $i < @$ref; $i++) {
 148                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 149                 return 0 unless $act;
 150                 next if $blank && $_[$i] =~ /^[ \*]$/;
 151                 if ($act eq 'c') {
 152                         return $i+1 unless is_callsign($_[$i]);
 153                 } elsif ($act eq 'm') {
 154                         return $i+1 unless is_pctext($_[$i]);
 155                 } elsif ($act eq 'p') {
 156                         return $i+1 unless is_pcflag($_[$i]);
 157                 } elsif ($act eq 'f') {
 158                         return $i+1 unless is_freq($_[$i]);
 159                 } elsif ($act eq 'n') {
 160                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 161                 } elsif ($act eq 'h') {
 162                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 163                 } elsif ($act eq 'd') {
 164                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 165                 } elsif ($act eq 't') {
 166                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 167                 }
 168         }
 169         return 0;
 170 }
 171
 172 sub init
 173 {
 174         my $user = DXUser->get($main::mycall);
 175         $DXProt::myprot_version += $main::version*100;
 176         $me = DXProt->new($main::mycall, 0, $user);
 177         $me->{here} = 1;
 178         $me->{state} = "indifferent";
 179         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 180         confess $@ if $@;
 181         $me->{sort} = 'S';    # S for spider
 182 }
 183
 184 #
 185 # obtain a new connection this is derived from dxchannel
 186 #
 187
 188 sub new
 189 {
 190         my $self = DXChannel::alloc(@_);
 191         return $self;
 192 }
 193
 194 # this is how a pc connection starts (for an incoming connection)
 195 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 196 # all the crap that comes between).
 197 sub start
 198 {
 199         my ($self, $line, $sort) = @_;
 200         my $call = $self->{call};
 201         my $user = $self->{user};
 202
 203         # remember type of connection
 204         $self->{consort} = $line;
 205         $self->{outbound} = $sort eq 'O';
 206         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 207         $self->{lang} = $user->lang || 'en';
 208         $self->{isolate} = $user->{isolate};
 209         $self->{consort} = $line;       # save the connection type
 210         $self->{here} = 1;
 211
 212         # get the output filters
 213         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 214         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 215         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 216         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 217
 218
 219         # get the INPUT filters (these only pertain to Clusters)
 220         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 221         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 222         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 223         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 224
 225         # set unbuffered and no echo
 226         $self->send_now('B',"0");
 227         $self->send_now('E',"0");
 228
 229         # ping neighbour node stuff
 230         my $ping = $user->pingint;
 231         $ping = 5*60 unless defined $ping;
 232         $self->{pingint} = $ping;
 233         $self->{nopings} = $user->nopings || 2;
 234         $self->{pingtime} = [ ];
 235         $self->{pingave} = 0;
 236
 237         # send initialisation string
 238         unless ($self->{outbound}) {
 239                 $self->send(pc18());
 240                 $self->{lastping} = $main::systime;
 241         } else {
 242                 $self->{lastping} = $main::systime + ($self->pingint / 2);
 243         }
 244         $self->state('init');
 245         $self->pc50_t(time);
 246
 247         # send info to all logged in thingies
 248         $self->tell_login('loginn');
 249
 250         Log('DXProt', "$call connected");
 251 }
 252
 253 #
 254 # This is the normal pcxx despatcher
 255 #
 256 sub normal
 257 {
 258         my ($self, $line) = @_;
 259         my @field = split /\^/, $line;
 260         return unless @field;
 261
 262         pop @field if $field[-1] eq '~';
 263
 264 #       print join(',', @field), "\n";
 265
 266         # ignore any lines that don't start with PC
 267         return if !$field[0] =~ /^PC/;
 268
 269         # process PC frames
 270         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 271         return unless $pcno;
 272         return if $pcno < 10 || $pcno > 99;
 273
 274         # check for and dump bad protocol messages
 275         my $n = check($pcno, @field);
 276         if ($n) {
 277                 dbg('chan', "PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 278                 return;
 279         }
 280
 281         # local processing 1
 282         my $pcr;
 283         eval {
 284                 $pcr = Local::pcprot($self, $pcno, @field);
 285         };
 286 #       dbg('local', "Local::pcprot error $@") if $@;
 287         return if $pcr;
 288
 289  SWITCH: {
 290                 if ($pcno == 10) {              # incoming talk
 291
 292                         # will we allow it at all?
 293                         if ($censorpc) {
 294                                 my @bad;
 295                                 if (@bad = BadWords::check($field[3])) {
 296                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 297                                         return;
 298                                 }
 299                         }
 300
 301                         # is it for me or one of mine?
 302                         my ($to, $via, $call, $dxchan);
 303                         if ($field[5] gt ' ') {
 304                                 $call = $via = $field[2];
 305                                 $to = $field[5];
 306                         } else {
 307                                 $call = $to = $field[2];
 308                         }
 309                         $dxchan = DXChannel->get($call);
 310                         if ($dxchan && $dxchan->is_user) {
 311                                 $field[3] =~ s/\%5E/^/g;
 312                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 313                         } else {
 314                                 $self->route($field[2], $line); # relay it on its way
 315                         }
 316                         return;
 317                 }
 318
 319                 if ($pcno == 11 || $pcno == 26) { # dx spot
 320
 321                         # route 'foreign' pc26s
 322                         if ($pcno == 26) {
 323                                 if ($field[7] ne $main::mycall) {
 324                                         $self->route($field[7], $line);
 325                                         return;
 326                                 }
 327                         }
 328
 329                         # if this is a 'nodx' node then ignore it
 330                         if ($badnode->in($field[7])) {
 331                                 dbg('chan', "PCPROT: Bad Node, dropped");
 332                                 return;
 333                         }
 334
 335                         # if this is a 'bad spotter' user then ignore it
 336                         if ($badspotter->in($field[6])) {
 337                                 dbg('chan', "PCPROT: Bad Spotter, dropped");
 338                                 return;
 339                         }
 340
 341                         # convert the date to a unix date
 342                         my $d = cltounix($field[3], $field[4]);
 343                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 344                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 345                                 dbg('chan', "PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 346                                 return;
 347                         }
 348
 349                         # is it 'baddx'
 350                         if ($baddx->in($field[2])) {
 351                                 dbg('chan', "PCPROT: Bad DX spot, ignored");
 352                                 return;
 353                         }
 354
 355                         # do some de-duping
 356                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 357                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 358                         if ($field[2] =~ /BUST\w*$/) {
 359                                 dbg('chan', "PCPROT: useless 'BUSTED' spot");
 360                                 return;
 361                         }
 362                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 363                                 dbg('chan', "PCPROT: Duplicate Spot ignored\n");
 364                                 return;
 365                         }
 366                         if ($censorpc) {
 367                                 my @bad;
 368                                 if (@bad = BadWords::check($field[5])) {
 369                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 370                                         return;
 371                                 }
 372                         }
 373
 374                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 375
 376             #
 377                         # @spot at this point contains:-
 378             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 379                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 380                         # you should be able to route on any of these
 381             #
 382
 383                         # fix up qra locators of known users
 384                         my $user = DXUser->get_current($spot[4]);
 385                         if ($user) {
 386                                 my $qra = $user->qra;
 387                                 unless ($qra && DXBearing::is_qra($qra)) {
 388                                         my $lat = $user->lat;
 389                                         my $long = $user->long;
 390                                         if (defined $lat && defined $long) {
 391                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 392                                                 $user->put;
 393                                         }
 394                                 }
 395
 396                                 # send a remote command to a distant cluster if it is visible and there is no
 397                                 # qra locator and we havn't done it for a month.
 398
 399                                 unless ($user->qra) {
 400                                         my $node;
 401                                         my $to = $user->homenode;
 402                                         my $last = $user->lastoper || 0;
 403                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 404                                                 my $cmd = "forward/opernam $spot[4]";
 405                                                 # send the rcmd but we aren't interested in the replies...
 406                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 407                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 408                                                 } else {
 409                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 410                                                 }
 411                                                 if ($to ne $field[7]) {
 412                                                         $to = $field[7];
 413                                                         $node = DXCluster->get_exact($to);
 414                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 415                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 416                                                         } else {
 417                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 418                                                         }
 419                                                 }
 420                                                 $user->lastoper($main::systime);
 421                                                 $user->put;
 422                                         }
 423                                 }
 424                         }
 425
 426                         # local processing
 427                         my $r;
 428                         eval {
 429                                 $r = Local::spot($self, @spot);
 430                         };
 431 #                       dbg('local', "Local::spot1 error $@") if $@;
 432                         return if $r;
 433
 434                         # DON'T be silly and send on PC26s!
 435                         return if $pcno == 26;
 436
 437                         # send out the filtered spots
 438                         send_dx_spot($self, $line, @spot) if @spot;
 439                         return;
 440                 }
 441
 442                 if ($pcno == 12) {              # announces
 443                         # announce duplicate checking
 444                         $field[3] =~ s/^\s+//;  # remove leading blanks
 445                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 446                                 dbg('chan', "PCPROT: Duplicate Announce ignored");
 447                                 return;
 448                         }
 449
 450                         if ($censorpc) {
 451                                 my @bad;
 452                                 if (@bad = BadWords::check($field[3])) {
 453                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 454                                         return;
 455                                 }
 456                         }
 457
 458                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 459
 460                                 # global ann filtering on INPUT
 461                                 if ($self->{inannfilter}) {
 462                                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
 463                                         my @dxcc = Prefix::extract($field[1]);
 464                                         if (@dxcc > 0) {
 465                                                 $ann_dxcc = $dxcc[1]->dxcc;
 466                                                 $ann_itu = $dxcc[1]->itu;
 467                                                 $ann_cq = $dxcc[1]->cq();
 468                                         }
 469                                         @dxcc = Prefix::extract($field[5]);
 470                                         if (@dxcc > 0) {
 471                                                 $org_dxcc = $dxcc[1]->dxcc;
 472                                                 $org_itu = $dxcc[1]->itu;
 473                                                 $org_cq = $dxcc[1]->cq();
 474                                         }
 475                                         my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
 476                                                                                                         $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 477                                         unless ($filter) {
 478                                                 dbg('chan', "PCPROT: Rejected by filter");
 479                                                 return;
 480                                         }
 481                                 }
 482
 483                                 # send it
 484                                 $self->send_announce($line, @field[1..6]);
 485                         } else {
 486                                 $self->route($field[2], $line);
 487                         }
 488
 489                         return;
 490                 }
 491
 492                 if ($pcno == 13) {
 493                         last SWITCH;
 494                 }
 495                 if ($pcno == 14) {
 496                         last SWITCH;
 497                 }
 498                 if ($pcno == 15) {
 499                         last SWITCH;
 500                 }
 501
 502                 if ($pcno == 16) {              # add a user
 503                         my $node = DXCluster->get_exact($field[1]);
 504                         my $dxchan;
 505                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 506                                 # add it to the node table if it isn't present and it's
 507                                 # connected locally
 508                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 509                                 dbg('chan', "PCPROT: $field[1] no PC19 yet, autovivified as node");
 510 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 511
 512                         }
 513                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 514                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 515                                 return;
 516                         }
 517                         if ($field[2] eq $main::myalias && DXChannel->get($field[1])) {
 518                                 dbg('chan', "PCPROT: trying to connect sysop from outside!");
 519                                 return;
 520                         }
 521                         unless ($node) {
 522                                 dbg('chan', "PCPROT: Node $field[1] not in config");
 523                                 return;
 524                         }
 525                         unless ($node->isa('DXNode')) {
 526                                 dbg('chan', "PCPROT: $field[1] is not a node");
 527                                 return;
 528                         }
 529                         if ($node->dxchan != $self) {
 530                                 dbg('chan', "PCPROT: $field[1] came in on wrong channel");
 531                                 return;
 532                         }
 533                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 534                                 dbg('chan', "PCPROT: $field[1] connected locally");
 535                                 return;
 536                         }
 537                         my $i;
 538
 539                         for ($i = 2; $i < $#field; $i++) {
 540                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 541                                 next unless $call && $confmode && defined $here && is_callsign($call);
 542                                 my $ref = DXCluster->get_exact($call);
 543                                 if ($ref) {
 544                                         if ($ref->isa('DXNode')) {
 545                                                 dbg('chan', "PCPROT: $call is a node");
 546                                                 next;
 547                                         }
 548                                         my $rcall = $ref->mynode->call;
 549                                         dbg('chan', "PCPROT: already have $call on $rcall");
 550                                         next;
 551                                 }
 552
 553                                 $confmode = $confmode eq '*';
 554                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 555
 556                                 # add this station to the user database, if required
 557                                 $call =~ s/-\d+$//o;        # remove ssid for users
 558                                 my $user = DXUser->get_current($call);
 559                                 $user = DXUser->new($call) if !$user;
 560                                 $user->homenode($node->call) if !$user->homenode;
 561                                 $user->node($node->call);
 562                                 $user->lastin($main::systime) unless DXChannel->get($call);
 563                                 $user->put;
 564                         }
 565
 566                         # queue up any messages (look for privates only)
 567                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 568 #                       broadcast_route($line, $self, $field[1]);
 569 #                       return;
 570                         last SWITCH;
 571                 }
 572
 573                 if ($pcno == 17) {              # remove a user
 574                         my $node = DXCluster->get_exact($field[2]);
 575                         my $dxchan;
 576                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 577                                 # add it to the node table if it isn't present and it's
 578                                 # connected locally
 579                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 580                                 dbg('chan', "PCPROT: $field[2] no PC19 yet, autovivified as node");
 581 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 582                         }
 583                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 584                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 585                                 return;
 586                         }
 587                         if ($field[1] eq $main::myalias && DXChannel->get($field[1])) {
 588                                 dbg('chan', "PCPROT: trying to disconnect sysop from outside!");
 589                                 return;
 590                         }
 591                         unless ($node) {
 592                                 dbg('chan', "PCPROT: Node $field[2] not in config");
 593                                 return;
 594                         }
 595                         unless ($node->isa('DXNode')) {
 596                                 dbg('chan', "PCPROT: $field[2] is not a node");
 597                                 return;
 598                         }
 599                         if ($node->dxchan != $self) {
 600                                 dbg('chan', "PCPROT: $field[2] came in on wrong channel");
 601                                 return;
 602                         }
 603                         if ($dxchan = DXChannel->get($field[1])) {
 604                                 dbg('chan', "PCPROT: $field[1] connected locally");
 605                                 return;
 606                         }
 607                         my $ref = DXCluster->get_exact($field[1]);
 608                         if ($ref) {
 609                                 if ($ref->mynode != $node) {
 610                                         dbg('chan', "PCPROT: $field[1] came in from wrong node $field[2]");
 611                                         return;
 612                                 }
 613                                 $ref->del;
 614                         } else {
 615                                 dbg('chan', "PCPROT: $field[1] not known" );
 616                                 return;
 617                         }
 618 #                       broadcast_route($line, $self, $field[2]);
 619 #                       return;
 620                         last SWITCH;
 621                 }
 622
 623                 if ($pcno == 18) {              # link request
 624                         $self->state('init');
 625
 626                         # first clear out any nodes on this dxchannel
 627                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 628                         foreach my $node (@gonenodes) {
 629                                 next if $node->dxchan == $DXProt::me;
 630                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 631                                 $node->del();
 632                         }
 633                         $self->send_local_config();
 634                         $self->send(pc20());
 635                         return;             # we don't pass these on
 636                 }
 637
 638                 if ($pcno == 19) {              # incoming cluster list
 639                         my $i;
 640                         my $newline = "PC19^";
 641                         for ($i = 1; $i < $#field-1; $i += 4) {
 642                                 my $here = $field[$i];
 643                                 my $call = uc $field[$i+1];
 644                                 my $confmode = $field[$i+2];
 645                                 my $ver = $field[$i+3];
 646                                 next unless defined $here && defined $confmode && is_callsign($call);
 647
 648                                 $ver = 5400 if !$ver && $allowzero;
 649
 650                                 # now check the call over
 651                                 my $node = DXCluster->get_exact($call);
 652                                 if ($node) {
 653                                         my $dxchan;
 654                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 655                                                 dbg('chan', "PCPROT: $call connected locally");
 656                                         }
 657                                     if ($node->dxchan != $self) {
 658                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 659                                                 next;
 660                                         }
 661                                         my $rcall = $node->mynode->call;
 662                                         dbg('chan', "PCPROT: already have $call on $rcall");
 663                                         next;
 664                                 }
 665
 666                                 # check for sane parameters
 667                                 next if $ver < 5000; # only works with version 5 software
 668                                 next if length $call < 3; # min 3 letter callsigns
 669
 670                                 # add it to the nodes table and outgoing line
 671                                 $newline .= "$here^$call^$confmode^$ver^";
 672                                 DXNode->new($self, $call, $confmode, $here, $ver);
 673
 674                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 675                                 my $mref = DXMsg::get_busy($call);
 676                                 $mref->stop_msg($call) if $mref;
 677
 678                                 # add this station to the user database, if required (don't remove SSID from nodes)
 679                                 my $user = DXUser->get_current($call);
 680                                 if (!$user) {
 681                                         $user = DXUser->new($call);
 682                                         $user->sort('A');
 683                                         $user->priv(1);                   # I have relented and defaulted nodes
 684                                         $self->{priv} = 1;                # to user RCMDs allowed
 685                                         $user->homenode($call);
 686                                         $user->node($call);
 687                                 }
 688                                 $user->lastin($main::systime) unless DXChannel->get($call);
 689                                 $user->put;
 690                         }
 691
 692                         return if $newline eq "PC19^";
 693
 694                         # add hop count
 695                         $newline .=  get_hops(19) . "^";
 696                         $line = $newline;
 697                         last SWITCH;
 698                 }
 699
 700                 if ($pcno == 20) {              # send local configuration
 701                         $self->send_local_config();
 702                         $self->send(pc22());
 703                         $self->state('normal');
 704                         return;
 705                 }
 706
 707                 if ($pcno == 21) {              # delete a cluster from the list
 708                         my $call = uc $field[1];
 709                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 710                                 my $node = DXCluster->get_exact($call);
 711                                 if ($node) {
 712                                         unless ($node->isa('DXNode')) {
 713                                                 dbg('chan', "PCPROT: $call is not a node");
 714                                                 return;
 715                                         }
 716                                         if ($call eq $self->{call}) {
 717                                                 dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 718                                                 return;
 719                                         }
 720                                         if ($node->dxchan != $self) {
 721                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 722                                                 return;
 723                                         }
 724                                         my $dxchan;
 725                                         if ($dxchan = DXChannel->get($call)) {
 726                                                 dbg('chan', "PCPROT: $call connected locally");
 727                                                 return;
 728                                         }
 729                                         $node->del();
 730                                 } else {
 731                                         dbg('chan', "PCPROT: $call not in table, dropped");
 732                                         return;
 733                                 }
 734                         } else {
 735                                 dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
 736                                 return;
 737                         }
 738 #                       broadcast_route($line, $self, $call);
 739 #                       return;
 740                         last SWITCH;
 741                 }
 742
 743                 if ($pcno == 22) {
 744                         $self->state('normal');
 745                         return;
 746                 }
 747
 748                 if ($pcno == 23 || $pcno == 27) { # WWV info
 749
 750                         # route 'foreign' pc27s
 751                         if ($pcno == 27) {
 752                                 if ($field[8] ne $main::mycall) {
 753                                         $self->route($field[8], $line);
 754                                         return;
 755                                 }
 756                         }
 757
 758                         # do some de-duping
 759                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 760                         my $sfi = unpad($field[3]);
 761                         my $k = unpad($field[4]);
 762                         my $i = unpad($field[5]);
 763                         my ($r) = $field[6] =~ /R=(\d+)/;
 764                         $r = 0 unless $r;
 765                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 766                                 dbg('chan', "PCPROT: WWV Date ($field[1] $field[2]) out of range");
 767                                 return;
 768                         }
 769                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 770                                 dbg('chan', "PCPROT: Dup WWV Spot ignored\n");
 771                                 return;
 772                         }
 773                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 774
 775                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 776
 777                         my $rep;
 778                         eval {
 779                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 780                         };
 781 #                       dbg('local', "Local::wwv2 error $@") if $@;
 782                         return if $rep;
 783
 784                         # DON'T be silly and send on PC27s!
 785                         return if $pcno == 27;
 786
 787                         # broadcast to the eager world
 788                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 789                         return;
 790                 }
 791
 792                 if ($pcno == 24) {              # set here status
 793                         my $call = uc $field[1];
 794                         my $ref = DXCluster->get_exact($call);
 795                         $ref->here($field[2]) if $ref;
 796                         last SWITCH;
 797                 }
 798
 799                 if ($pcno == 25) {      # merge request
 800                         if ($field[1] ne $main::mycall) {
 801                                 $self->route($field[1], $line);
 802                                 return;
 803                         }
 804                         if ($field[2] eq $main::mycall) {
 805                                 dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 806                                 return;
 807                         }
 808
 809                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 810
 811                         # spots
 812                         if ($field[3] > 0) {
 813                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 814                                 my $in;
 815                                 foreach $in (@in) {
 816                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 817                                 }
 818                         }
 819
 820                         # wwv
 821                         if ($field[4] > 0) {
 822                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 823                                 my $in;
 824                                 foreach $in (@in) {
 825                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 826                                 }
 827                         }
 828                         return;
 829                 }
 830
 831                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 832                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 833                                 DXMsg::process($self, $line);
 834                         } else {
 835                                 $self->route($field[1], $line) unless $self->is_clx;
 836                         }
 837                         return;
 838                 }
 839
 840                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 841                         if ($field[1] eq $main::mycall) {
 842                                 my $ref = DXUser->get_current($field[2]);
 843                                 my $cref = DXCluster->get($field[2]);
 844                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 845                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 846                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 847                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 848                                                 my $oldpriv = $self->{priv};
 849                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 850                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 851                                                 $self->{priv} = $oldpriv;
 852                                                 for (@in) {
 853                                                         s/\s*$//og;
 854                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 855                                                         Log('rcmd', 'out', $field[2], $_);
 856                                                 }
 857                                                 delete $self->{remotecmd};
 858                                         } else {
 859                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 860                                         }
 861                                 } else {
 862                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 863                                 }
 864                         } else {
 865                                 my $ref = DXUser->get_current($field[1]);
 866                                 if ($ref && $ref->is_clx) {
 867                                         $self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 868                                 } else {
 869                                         $self->route($field[1], $line);
 870                                 }
 871                         }
 872                         return;
 873                 }
 874
 875                 if ($pcno == 35) {              # remote command replies
 876                         if ($field[1] eq $main::mycall) {
 877                                 my $s = $rcmds{$field[2]};
 878                                 if ($s) {
 879                                         my $dxchan = DXChannel->get($s->{call});
 880                                         $dxchan->send($field[3]) if $dxchan;
 881                                         delete $rcmds{$field[2]} if !$dxchan;
 882                                 } else {
 883                                         # send unsolicited ones to the sysop
 884                                         my $dxchan = DXChannel->get($main::myalias);
 885                                         $dxchan->send($field[3]) if $dxchan;
 886                                 }
 887                         } else {
 888                                 my $ref = DXUser->get_current($field[1]);
 889                                 if ($ref && $ref->is_clx) {
 890                                         $self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 891                                 } else {
 892                                         $self->route($field[1], $line);
 893                                 }
 894                         }
 895                         return;
 896                 }
 897
 898                 # for pc 37 see 44 onwards
 899
 900                 if ($pcno == 38) {              # node connected list from neighbour
 901                         return;
 902                 }
 903
 904                 if ($pcno == 39) {              # incoming disconnect
 905                         if ($field[1] eq $self->{call}) {
 906                                 $self->disconnect(1);
 907                         } else {
 908                                 dbg('chan', "PCPROT: came in on wrong channel");
 909                         }
 910                         return;
 911                 }
 912
 913                 if ($pcno == 41) {              # user info
 914                         # add this station to the user database, if required
 915                         my $user = DXUser->get_current($field[1]);
 916                         $user = DXUser->new($field[1]) if !$user;
 917
 918                         if ($field[2] == 1) {
 919                                 $user->name($field[3]);
 920                         } elsif ($field[2] == 2) {
 921                                 $user->qth($field[3]);
 922                         } elsif ($field[2] == 3) {
 923                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 924                                 $user->lat($lat);
 925                                 $user->long($long);
 926                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 927                         } elsif ($field[2] == 4) {
 928                                 $user->homenode($field[3]);
 929                         }
 930                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 931                         $user->put;
 932                         last SWITCH;
 933                 }
 934                 if ($pcno == 43) {
 935                         last SWITCH;
 936                 }
 937                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 938                         DXDb::process($self, $line);
 939                         return;
 940                 }
 941
 942                 if ($pcno == 50) {              # keep alive/user list
 943                         my $node = DXCluster->get_exact($field[1]);
 944                         if ($node) {
 945                                 return unless $node->isa('DXNode');
 946                                 return unless $node->dxchan == $self;
 947                                 $node->update_users($field[2]);
 948                         }
 949                         last SWITCH;
 950                 }
 951
 952                 if ($pcno == 51) {              # incoming ping requests/answers
 953
 954                         # is it for us?
 955                         if ($field[1] eq $main::mycall) {
 956                                 my $flag = $field[3];
 957                                 if ($flag == 1) {
 958                                         $self->send(pc51($field[2], $field[1], '0'));
 959                                 } else {
 960                                         # it's a reply, look in the ping list for this one
 961                                         my $ref = $pings{$field[2]};
 962                                         if ($ref) {
 963                                                 my $tochan =  DXChannel->get($field[2]);
 964                                                 while (@$ref) {
 965                                                         my $r = shift @$ref;
 966                                                         my $dxchan = DXChannel->get($r->{call});
 967                                                         next unless $dxchan;
 968                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 969                                                         if ($dxchan->is_user) {
 970                                                                 my $s = sprintf "%.2f", $t;
 971                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 972                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 973                                                         } elsif ($dxchan->is_node) {
 974                                                                 if ($tochan) {
 975                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
 976                                                                         push @{$tochan->{pingtime}}, $t;
 977                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 978                                                                         my $st;
 979                                                                         for (@{$tochan->{pingtime}}) {
 980                                                                                 $st += $_;
 981                                                                         }
 982                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 983                                                                 }
 984                                                         }
 985                                                 }
 986                                         }
 987                                 }
 988                         } else {
 989                                 # route down an appropriate thingy
 990                                 $self->route($field[1], $line);
 991                         }
 992                         return;
 993                 }
 994
 995                 if ($pcno == 75) {              # dunno but route it
 996                         if ($field[1] ne $main::mycall) {
 997                                 $self->route($field[1], $line);
 998                         }
 999                         return;
1000                 }
1001
1002                 if ($pcno == 73) {  # WCY broadcasts
1003
1004                         # do some de-duping
1005                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
1006                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
1007                                 dbg('chan', "PCPROT: WCY Date ($field[1] $field[2]) out of range");
1008                                 return;
1009                         }
1010                         @field = map { unpad($_) } @field;
1011                         if (WCY::dup($d,@field[3..7])) {
1012                                 dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
1013                                 return;
1014                         }
1015
1016                         my $wcy = WCY::update($d, @field[2..12]);
1017
1018                         my $rep;
1019                         eval {
1020                                 $rep = Local::wwv($self, @field[1..12]);
1021                         };
1022                         # dbg('local', "Local::wcy error $@") if $@;
1023                         return if $rep;
1024
1025                         # broadcast to the eager world
1026                         send_wcy_spot($self, $line, $d, @field[2..12]);
1027                         return;
1028                 }
1029
1030                 if ($pcno == 84) { # remote commands (incoming)
1031                         if ($field[1] eq $main::mycall) {
1032                                 my $ref = DXUser->get_current($field[2]);
1033                                 my $cref = DXCluster->get($field[2]);
1034                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1035                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1036                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1037                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1038                                                 my $oldpriv = $self->{priv};
1039                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1040                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1041                                                 $self->{priv} = $oldpriv;
1042                                                 for (@in) {
1043                                                         s/\s*$//og;
1044                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1045                                                         Log('rcmd', 'out', $field[2], $_);
1046                                                 }
1047                                                 delete $self->{remotecmd};
1048                                         } else {
1049                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1050                                         }
1051                                 } else {
1052                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1053                                 }
1054                         } else {
1055                                 my $ref = DXUser->get_current($field[1]);
1056                                 if ($ref && $ref->is_clx) {
1057                                         $self->route($field[1], $line);
1058                                 } else {
1059                                         $self->route($field[1], pc34($field[2], $field[1], $field[4]));
1060                                 }
1061                         }
1062                         return;
1063                 }
1064
1065                 if ($pcno == 85) {              # remote command replies
1066                         if ($field[1] eq $main::mycall) {
1067                                 my $dxchan = DXChannel->get($field[3]);
1068                                 if ($dxchan) {
1069                                         $dxchan->send($field[4]);
1070                                 } else {
1071                                         my $s = $rcmds{$field[2]};
1072                                         if ($s) {
1073                                                 $dxchan = DXChannel->get($s->{call});
1074                                                 $dxchan->send($field[4]) if $dxchan;
1075                                                 delete $rcmds{$field[2]} if !$dxchan;
1076                                         } else {
1077                                                 # send unsolicited ones to the sysop
1078                                                 my $dxchan = DXChannel->get($main::myalias);
1079                                                 $dxchan->send($field[4]) if $dxchan;
1080                                         }
1081                                 }
1082                         } else {
1083                                 my $ref = DXUser->get_current($field[1]);
1084                                 if ($ref && $ref->is_clx) {
1085                                         $self->route($field[1], $line);
1086                                 } else {
1087                                         $self->route($field[1], pc35($field[2], $field[1], $field[4]));
1088                                 }
1089                         }
1090                         return;
1091                 }
1092         }
1093
1094         # if get here then rebroadcast the thing with its Hop count decremented (if
1095         # there is one). If it has a hop count and it decrements to zero then don't
1096         # rebroadcast it.
1097         #
1098         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1099         #        REBROADCAST!!!!
1100         #
1101
1102         unless ($self->{isolate}) {
1103                 broadcast_ak1a($line, $self); # send it to everyone but me
1104         }
1105 }
1106
1107 #
1108 # This is called from inside the main cluster processing loop and is used
1109 # for despatching commands that are doing some long processing job
1110 #
1111 sub process
1112 {
1113         my $t = time;
1114         my @dxchan = DXChannel->get_all();
1115         my $dxchan;
1116
1117         foreach $dxchan (@dxchan) {
1118                 next unless $dxchan->is_node();
1119                 next if $dxchan == $me;
1120
1121                 # send a pc50 out on this channel
1122                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1123                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1124                         $dxchan->pc50_t($t);
1125                 }
1126
1127                 # send a ping out on this channel
1128                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1129                         if ($dxchan->{nopings} <= 0) {
1130                                 $dxchan->disconnect;
1131                         } else {
1132                                 addping($main::mycall, $dxchan->call);
1133                                 $dxchan->{nopings} -= 1;
1134                                 $dxchan->{lastping} = $t;
1135                         }
1136                 }
1137         }
1138
1139         my $key;
1140         my $val;
1141         my $cutoff;
1142         if ($main::systime - 3600 > $last_hour) {
1143 #               Spot::process;
1144 #               Geomag::process;
1145 #               AnnTalk::process;
1146                 $last_hour = $main::systime;
1147         }
1148 }
1149
1150 #
1151 # finish up a pc context
1152 #
1153
1154 #
1155 # some active measures
1156 #
1157 sub send_route
1158 {
1159         my $self = shift;
1160         my $line = shift;
1161         my @dxchan = DXChannel::get_all_nodes();
1162         my $dxchan;
1163
1164         # send it if it isn't the except list and isn't isolated and still has a hop count
1165         # taking into account filtering and so on
1166         foreach $dxchan (@dxchan) {
1167                 my $routeit;
1168                 my ($filter, $hops);
1169
1170                 if ($dxchan->{routefilter}) {
1171                         ($filter, $hops) = $dxchan->{routefilter}->it($self->{call}, @_);
1172                          next unless $filter;
1173                 }
1174                 next if $dxchan == $self;
1175                 if ($hops) {
1176                         $routeit = $line;
1177                         $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1178                 } else {
1179                         $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1180                         next unless $routeit;
1181                 }
1182                 if ($filter) {
1183                         $dxchan->send($routeit) if $routeit;
1184                 } else {
1185                         $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1186                 }
1187         }
1188 }
1189
1190 sub send_dx_spot
1191 {
1192         my $self = shift;
1193         my $line = shift;
1194         my @dxchan = DXChannel->get_all();
1195         my $dxchan;
1196
1197         # send it if it isn't the except list and isn't isolated and still has a hop count
1198         # taking into account filtering and so on
1199         foreach $dxchan (@dxchan) {
1200                 my $routeit;
1201                 my ($filter, $hops);
1202
1203                 if ($dxchan->{spotsfilter}) {
1204                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1205                         next unless $filter;
1206                 }
1207
1208                 if ($dxchan->is_node) {
1209                         next if $dxchan == $self;
1210                         if ($hops) {
1211                                 $routeit = $line;
1212                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1213                         } else {
1214                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1215                                 next unless $routeit;
1216                         }
1217                         if ($filter) {
1218                                 $dxchan->send($routeit) if $routeit;
1219                         } else {
1220                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1221                         }
1222                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1223                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1224                         $buf .= "\a\a" if $dxchan->{beep};
1225                         $buf =~ s/\%5E/^/g;
1226                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1227                                 $dxchan->send($buf);
1228                         } else {
1229                                 $dxchan->delay($buf);
1230                         }
1231                 }
1232         }
1233 }
1234
1235 sub send_wwv_spot
1236 {
1237         my $self = shift;
1238         my $line = shift;
1239         my @dxchan = DXChannel->get_all();
1240         my $dxchan;
1241         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1242         my @dxcc = Prefix::extract($_[7]);
1243         if (@dxcc > 0) {
1244                 $wwv_dxcc = $dxcc[1]->dxcc;
1245                 $wwv_itu = $dxcc[1]->itu;
1246                 $wwv_cq = $dxcc[1]->cq;
1247         }
1248         @dxcc = Prefix::extract($_[8]);
1249         if (@dxcc > 0) {
1250                 $org_dxcc = $dxcc[1]->dxcc;
1251                 $org_itu = $dxcc[1]->itu;
1252                 $org_cq = $dxcc[1]->cq;
1253         }
1254
1255         # send it if it isn't the except list and isn't isolated and still has a hop count
1256         # taking into account filtering and so on
1257         foreach $dxchan (@dxchan) {
1258                 my $routeit;
1259                 my ($filter, $hops);
1260
1261                 if ($dxchan->{wwvfilter}) {
1262                         ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1263                          next unless $filter;
1264                 }
1265                 if ($dxchan->is_node) {
1266                         next if $dxchan == $self;
1267                         if ($hops) {
1268                                 $routeit = $line;
1269                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1270                         } else {
1271                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1272                                 next unless $routeit;
1273                         }
1274                         if ($filter) {
1275                                 $dxchan->send($routeit) if $routeit;
1276                         } else {
1277                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1278
1279                         }
1280                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1281                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1282                         $buf .= "\a\a" if $dxchan->{beep};
1283                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1284                                 $dxchan->send($buf);
1285                         } else {
1286                                 $dxchan->delay($buf);
1287                         }
1288                 }
1289         }
1290 }
1291
1292 sub send_wcy_spot
1293 {
1294         my $self = shift;
1295         my $line = shift;
1296         my @dxchan = DXChannel->get_all();
1297         my $dxchan;
1298         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1299         my @dxcc = Prefix::extract($_[11]);
1300         if (@dxcc > 0) {
1301                 $wcy_dxcc = $dxcc[1]->dxcc;
1302                 $wcy_itu = $dxcc[1]->itu;
1303                 $wcy_cq = $dxcc[1]->cq;
1304         }
1305         @dxcc = Prefix::extract($_[12]);
1306         if (@dxcc > 0) {
1307                 $org_dxcc = $dxcc[1]->dxcc;
1308                 $org_itu = $dxcc[1]->itu;
1309                 $org_cq = $dxcc[1]->cq;
1310         }
1311
1312         # send it if it isn't the except list and isn't isolated and still has a hop count
1313         # taking into account filtering and so on
1314         foreach $dxchan (@dxchan) {
1315                 my $routeit;
1316                 my ($filter, $hops);
1317
1318                 if ($dxchan->{wcyfilter}) {
1319                         ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1320                          next unless $filter;
1321                 }
1322                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1323                         next if $dxchan == $self;
1324                         if ($hops) {
1325                                 $routeit = $line;
1326                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1327                         } else {
1328                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1329                                 next unless $routeit;
1330                         }
1331                         if ($filter) {
1332                                 $dxchan->send($routeit) if $routeit;
1333                         } else {
1334                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1335                         }
1336                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1337                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1338                         $buf .= "\a\a" if $dxchan->{beep};
1339                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1340                                 $dxchan->send($buf);
1341                         } else {
1342                                 $dxchan->delay($buf);
1343                         }
1344                 }
1345         }
1346 }
1347
1348 # send an announce
1349 sub send_announce
1350 {
1351         my $self = shift;
1352         my $line = shift;
1353         my @dxchan = DXChannel->get_all();
1354         my $dxchan;
1355         my $text = unpad($_[2]);
1356         my $target;
1357         my $to = 'To ';
1358
1359         if ($_[3] eq '*') {     # sysops
1360                 $target = "SYSOP";
1361         } elsif ($_[3] gt ' ') { # speciality list handling
1362                 my ($name) = split /\./, $_[3];
1363                 $target = "$name"; # put the rest in later (if bothered)
1364         }
1365
1366         if ($_[5] eq '1') {
1367                 $target = "WX";
1368                 $to = '';
1369         }
1370         $target = "ALL" if !$target;
1371
1372         Log('ann', $target, $_[0], $text);
1373
1374         # obtain country codes etc
1375         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1376         my @dxcc = Prefix::extract($_[0]);
1377         if (@dxcc > 0) {
1378                 $ann_dxcc = $dxcc[1]->dxcc;
1379                 $ann_itu = $dxcc[1]->itu;
1380                 $ann_cq = $dxcc[1]->cq;
1381         }
1382         @dxcc = Prefix::extract($_[4]);
1383         if (@dxcc > 0) {
1384                 $org_dxcc = $dxcc[1]->dxcc;
1385                 $org_itu = $dxcc[1]->itu;
1386                 $org_cq = $dxcc[1]->cq;
1387         }
1388
1389         # send it if it isn't the except list and isn't isolated and still has a hop count
1390         # taking into account filtering and so on
1391         foreach $dxchan (@dxchan) {
1392                 my $routeit;
1393                 my ($filter, $hops);
1394
1395                 if ($dxchan->{annfilter}) {
1396                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1397                         next unless $filter;
1398                 }
1399                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1400                         next if $dxchan == $self;
1401                         if ($hops) {
1402                                 $routeit = $line;
1403                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1404                         } else {
1405                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1406                                 next unless $routeit;
1407                         }
1408                         if ($filter) {
1409                                 $dxchan->send($routeit) if $routeit;
1410                         } else {
1411                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1412
1413                         }
1414                 } elsif ($dxchan->is_user) {
1415                         unless ($dxchan->{ann}) {
1416                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1417                         }
1418                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1419                         my $buf = "$to$target de $_[0]: $text";
1420                         $buf =~ s/\%5E/^/g;
1421                         $buf .= "\a\a" if $dxchan->{beep};
1422                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1423                                 $dxchan->send($buf);
1424                         } else {
1425                                 $dxchan->delay($buf);
1426                         }
1427                 }
1428         }
1429 }
1430
1431 sub send_local_config
1432 {
1433         my $self = shift;
1434         my $n;
1435         my @nodes;
1436         my @localnodes;
1437         my @remotenodes;
1438
1439         # send our nodes
1440         if ($self->{isolate}) {
1441                 @localnodes = (DXCluster->get_exact($main::mycall));
1442         } else {
1443                 # create a list of all the nodes that are not connected to this connection
1444                 # and are not themselves isolated, this to make sure that isolated nodes
1445         # don't appear outside of this node
1446                 @nodes = DXNode::get_all();
1447                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1448                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1449                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1450                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1451                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1452                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1453         }
1454
1455         my @s = $me->pc19(@localnodes, @remotenodes);
1456         for (@s) {
1457                 my $routeit = adjust_hops($self, $_);
1458                 $self->send($routeit) if $routeit;
1459         }
1460
1461         # get all the users connected on the above nodes and send them out
1462         foreach $n (@localnodes, @remotenodes) {
1463                 my @users = values %{$n->list};
1464                 my @s = pc16($n, @users);
1465                 for (@s) {
1466                         my $routeit = adjust_hops($self, $_);
1467                         $self->send($routeit) if $routeit;
1468                 }
1469         }
1470 }
1471
1472 #
1473 # route a message down an appropriate interface for a callsign
1474 #
1475 # is called route(to, pcline);
1476 #
1477 sub route
1478 {
1479         my ($self, $call, $line) = @_;
1480
1481         if (ref $self && $call eq $self->{call}) {
1482                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1483                 return;
1484         }
1485
1486         # always send it down the local interface if available
1487         my $dxchan = DXChannel->get($call);
1488         unless ($dxchan) {
1489                 my $cl = DXCluster->get_exact($call);
1490                 $dxchan = $cl->dxchan if $cl;
1491                 if (ref $dxchan) {
1492                         if (ref $self && $dxchan eq $self) {
1493                                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1494                                 return;
1495                         }
1496                 }
1497         }
1498         if ($dxchan) {
1499                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1500                 if ($routeit) {
1501                         $dxchan->send($routeit);
1502                 }
1503         } else {
1504                 dbg('chan', "PCPROT: No route available, dropped");
1505         }
1506 }
1507
1508 # broadcast a message to all clusters taking into account isolation
1509 # [except those mentioned after buffer]
1510 sub broadcast_ak1a
1511 {
1512         my $s = shift;                          # the line to be rebroadcast
1513         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1514         my @dxchan = DXChannel::get_all_nodes();
1515         my $dxchan;
1516
1517         # send it if it isn't the except list and isn't isolated and still has a hop count
1518         foreach $dxchan (@dxchan) {
1519                 next if grep $dxchan == $_, @except;
1520                 next if $dxchan == $me;
1521
1522                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1523                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1524         }
1525 }
1526
1527 # broadcast a message to all clusters ignoring isolation
1528 # [except those mentioned after buffer]
1529 sub broadcast_all_ak1a
1530 {
1531         my $s = shift;                          # the line to be rebroadcast
1532         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1533         my @dxchan = DXChannel::get_all_nodes();
1534         my $dxchan;
1535
1536         # send it if it isn't the except list and isn't isolated and still has a hop count
1537         foreach $dxchan (@dxchan) {
1538                 next if grep $dxchan == $_, @except;
1539                 next if $dxchan == $me;
1540
1541                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1542                 $dxchan->send($routeit);
1543         }
1544 }
1545
1546 # broadcast to all users
1547 # storing the spot or whatever until it is in a state to receive it
1548 sub broadcast_users
1549 {
1550         my $s = shift;                          # the line to be rebroadcast
1551         my $sort = shift;           # the type of transmission
1552         my $fref = shift;           # a reference to an object to filter on
1553         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1554         my @dxchan = DXChannel::get_all_users();
1555         my $dxchan;
1556         my @out;
1557
1558         foreach $dxchan (@dxchan) {
1559                 next if grep $dxchan == $_, @except;
1560                 push @out, $dxchan;
1561         }
1562         broadcast_list($s, $sort, $fref, @out);
1563 }
1564
1565 # broadcast to a list of users
1566 sub broadcast_list
1567 {
1568         my $s = shift;
1569         my $sort = shift;
1570         my $fref = shift;
1571         my $dxchan;
1572
1573         foreach $dxchan (@_) {
1574                 my $filter = 1;
1575                 next if $dxchan == $me;
1576
1577                 if ($sort eq 'dx') {
1578                     next unless $dxchan->{dx};
1579                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1580                         next unless $filter;
1581                 }
1582                 next if $sort eq 'ann' && !$dxchan->{ann};
1583                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1584                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1585                 next if $sort eq 'wx' && !$dxchan->{wx};
1586
1587                 $s =~ s/\a//og unless $dxchan->{beep};
1588
1589                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1590                         $dxchan->send($s);
1591                 } else {
1592                         $dxchan->delay($s);
1593                 }
1594         }
1595 }
1596
1597
1598 #
1599 # obtain the hops from the list for this callsign and pc no
1600 #
1601
1602 sub get_hops
1603 {
1604         my $pcno = shift;
1605         my $hops = $DXProt::hopcount{$pcno};
1606         $hops = $DXProt::def_hopcount if !$hops;
1607         return "H$hops";
1608 }
1609
1610 #
1611 # adjust the hop count on a per node basis using the user loadable
1612 # hop table if available or else decrement an existing one
1613 #
1614
1615 sub adjust_hops
1616 {
1617         my $self = shift;
1618         my $s = shift;
1619         my $call = $self->{call};
1620         my $hops;
1621
1622         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1623                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1624                 confess "$call called adjust_hops with '$s'" unless $pcno;
1625                 my $ref = $nodehops{$call} if %nodehops;
1626                 if ($ref) {
1627                         my $newhops = $ref->{$pcno};
1628                         return "" if defined $newhops && $newhops == 0;
1629                         $newhops = $ref->{default} unless $newhops;
1630                         return "" if defined $newhops && $newhops == 0;
1631                         $newhops = $hops if !$newhops;
1632                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1633                 } else {
1634                         # simply decrement it
1635                         $hops--;
1636                         return "" if !$hops;
1637                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1638                 }
1639         }
1640         return $s;
1641 }
1642
1643 #
1644 # load hop tables
1645 #
1646 sub load_hops
1647 {
1648         my $self = shift;
1649         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1650         do "$main::data/hop_table.pl";
1651         return $@ if $@;
1652         return 0;
1653 }
1654
1655
1656 # add a ping request to the ping queues
1657 sub addping
1658 {
1659         my ($from, $to) = @_;
1660         my $ref = $pings{$to} || [];
1661         my $r = {};
1662         $r->{call} = $from;
1663         $r->{t} = [ gettimeofday ];
1664         route(undef, $to, pc51($to, $main::mycall, 1));
1665         push @$ref, $r;
1666         $pings{$to} = $ref;
1667 }
1668
1669 # add a rcmd request to the rcmd queues
1670 sub addrcmd
1671 {
1672         my ($self, $to, $cmd) = @_;
1673
1674         my $r = {};
1675         $r->{call} = $self->{call};
1676         $r->{t} = $main::systime;
1677         $r->{cmd} = $cmd;
1678         $rcmds{$to} = $r;
1679
1680         my $ref = DXCluster->get_exact($to);
1681     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1682                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1683         } else {
1684                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1685         }
1686 }
1687
1688 sub disconnect
1689 {
1690         my $self = shift;
1691         my $nopc39 = shift;
1692         my $call = $self->call;
1693
1694         unless ($nopc39) {
1695                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1696         }
1697
1698         # unbusy and stop and outgoing mail
1699         my $mref = DXMsg::get_busy($call);
1700         $mref->stop_msg($call) if $mref;
1701
1702         # create a list of all the nodes that have gone and delete them from the table
1703         my @nodes;
1704         foreach my $node (grep { $_->dxchan == $self } DXNode::get_all) {
1705                 next if $node->dxchancall eq $call;
1706                 next if $node->call eq $main::mycall;
1707                 push @nodes, $node->call;
1708                 $node->del;
1709         }
1710
1711         # broadcast to all other nodes that all the nodes connected to via me are gone
1712         unless ($self->{isolate}) {
1713                 push @nodes, $call;
1714                 for (@nodes) {
1715                         broadcast_ak1a(pc21($_, 'Gone.'), $self);
1716                 }
1717         }
1718
1719         # remove this node from the tables
1720         my $node = DXCluster->get_exact($call);
1721         $node->del if $node;
1722
1723         # remove outstanding pings
1724         delete $pings{$call};
1725
1726         # I was the last node visited
1727     $self->user->node($main::mycall);
1728
1729         # send info to all logged in thingies
1730         $self->tell_login('logoutn');
1731
1732         Log('DXProt', $call . " Disconnected");
1733
1734         $self->SUPER::disconnect;
1735 }
1736
1737
1738 #
1739 # send a talk message to this thingy
1740 #
1741 sub talk
1742 {
1743         my ($self, $from, $to, $via, $line) = @_;
1744
1745         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1746         $self->send(DXProt::pc10($from, $to, $via, $line));
1747         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1748 }
1749 1;
1750 __END__