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                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 508                         unless ($node->isa('DXNode')) {
 509                                 dbg('chan', "$field[1] is not a node");
 510                                 return;
 511                         }
 512                         if ($node->dxchan != $self) {
 513                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 514                                 return;
 515                         }
 516                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 517                                 dbg('chan', "LOOP: $field[1] connected locally");
 518                                 return;
 519                         }
 520                         my $i;
 521
 522                         for ($i = 2; $i < $#field; $i++) {
 523                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 524                                 next unless $call && $confmode && defined $here && is_callsign($call);
 525                                 my $ref = DXCluster->get_exact($call);
 526                                 if ($ref) {
 527                                         if ($ref->isa('DXNode')) {
 528                                                 dbg('chan', "LOOP: $call is a node");
 529                                                 next;
 530                                         }
 531                                         my $rcall = $ref->call;
 532                                         dbg('chan', "LOOP: already have $call on $rcall");
 533                                         next;
 534                                 }
 535
 536                                 $confmode = $confmode eq '*';
 537                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 538
 539                                 # add this station to the user database, if required
 540                                 $call =~ s/-\d+$//o;        # remove ssid for users
 541                                 my $user = DXUser->get_current($call);
 542                                 $user = DXUser->new($call) if !$user;
 543                                 $user->homenode($node->call) if !$user->homenode;
 544                                 $user->node($node->call);
 545                                 $user->lastin($main::systime) unless DXChannel->get($call);
 546                                 $user->put;
 547                         }
 548
 549                         # queue up any messages (look for privates only)
 550                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 551                         last SWITCH;
 552                 }
 553
 554                 if ($pcno == 17) {              # remove a user
 555                         my $node = DXCluster->get_exact($field[2]);
 556                         my $dxchan;
 557                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 558                                 # add it to the node table if it isn't present and it's
 559                                 # connected locally
 560                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 561                                 dbg('chan', "$field[2] no PC19 yet, autovivified as node");
 562 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 563                         }
 564                         return unless $node;
 565                         unless ($node->isa('DXNode')) {
 566                                 dbg('chan', "LOOP: $field[2] is not a node");
 567                                 return;
 568                         }
 569                         if ($node->dxchan != $self) {
 570                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 571                                 return;
 572                         }
 573                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 574                                 dbg('chan', "LOOP: $field[2] connected locally");
 575                                 return;
 576                         }
 577                         my $ref = DXCluster->get_exact($field[1]);
 578                         if ($ref) {
 579                                 $ref->del;
 580                         } else {
 581                                 dbg('chan', "$field[1] not known" );
 582                         }
 583                         last SWITCH;
 584                 }
 585
 586                 if ($pcno == 18) {              # link request
 587                         $self->state('init');
 588
 589                         # first clear out any nodes on this dxchannel
 590                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 591                         foreach my $node (@gonenodes) {
 592                                 next if $node->dxchan == $DXProt::me;
 593                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 594                                 $node->del();
 595                         }
 596                         $self->send_local_config();
 597                         $self->send(pc20());
 598                         return;             # we don't pass these on
 599                 }
 600
 601                 if ($pcno == 19) {              # incoming cluster list
 602                         my $i;
 603                         my $newline = "PC19^";
 604                         for ($i = 1; $i < $#field-1; $i += 4) {
 605                                 my $here = $field[$i];
 606                                 my $call = uc $field[$i+1];
 607                                 my $confmode = $field[$i+2];
 608                                 my $ver = $field[$i+3];
 609                                 next unless defined $here && defined $confmode && is_callsign($call);
 610
 611                                 $ver = 5400 if !$ver && $allowzero;
 612
 613                                 # now check the call over
 614                                 my $node = DXCluster->get_exact($call);
 615                                 if ($node) {
 616                                         my $dxchan;
 617                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 618                                                 dbg('chan', "LOOP: $call connected locally");
 619                                         }
 620                                     if ($node->dxchan != $self) {
 621                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 622                                                 next;
 623                                         }
 624                                         dbg('chan', "already have $call");
 625                                         next;
 626                                 }
 627
 628                                 # check for sane parameters
 629                                 next if $ver < 5000; # only works with version 5 software
 630                                 next if length $call < 3; # min 3 letter callsigns
 631
 632                                 # add it to the nodes table and outgoing line
 633                                 $newline .= "$here^$call^$confmode^$ver^";
 634                                 DXNode->new($self, $call, $confmode, $here, $ver);
 635
 636                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 637                                 my $mref = DXMsg::get_busy($call);
 638                                 $mref->stop_msg($call) if $mref;
 639
 640                                 # add this station to the user database, if required (don't remove SSID from nodes)
 641                                 my $user = DXUser->get_current($call);
 642                                 if (!$user) {
 643                                         $user = DXUser->new($call);
 644                                         $user->sort('A');
 645                                         $user->priv(1);                   # I have relented and defaulted nodes
 646                                         $self->{priv} = 1;                # to user RCMDs allowed
 647                                         $user->homenode($call);
 648                                         $user->node($call);
 649                                 }
 650                                 $user->lastin($main::systime) unless DXChannel->get($call);
 651                                 $user->put;
 652                         }
 653
 654                         return if $newline eq "PC19^";
 655
 656                         # add hop count
 657                         $newline .=  get_hops(19) . "^";
 658                         $line = $newline;
 659                         last SWITCH;
 660                 }
 661
 662                 if ($pcno == 20) {              # send local configuration
 663                         $self->send_local_config();
 664                         $self->send(pc22());
 665                         $self->state('normal');
 666                         return;
 667                 }
 668
 669                 if ($pcno == 21) {              # delete a cluster from the list
 670                         my $call = uc $field[1];
 671                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 672                                 my $node = DXCluster->get_exact($call);
 673                                 if ($node) {
 674                                         unless ($node->isa('DXNode')) {
 675                                                 dbg('chan', "$call is not a node");
 676                                                 return;
 677                                         }
 678                                         if ($call eq $self->{call}) {
 679                                                 dbg('chan', "LOOP: Trying to disconnect myself with PC21");
 680                                                 return;
 681                                         }
 682                                         if ($node->dxchan != $self) {
 683                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 684                                                 return;
 685                                         }
 686                                         my $dxchan;
 687                                         if ($dxchan = DXChannel->get($call)) {
 688                                                 dbg('chan', "LOOP: $call connected locally");
 689                                                 return;
 690                                         }
 691                                         $node->del();
 692                                 } else {
 693                                         dbg('chan', "$call not in table, dropped");
 694                                         return;
 695                                 }
 696                         }
 697                         last SWITCH;
 698                 }
 699
 700                 if ($pcno == 22) {
 701                         $self->state('normal');
 702                         return;
 703                 }
 704
 705                 if ($pcno == 23 || $pcno == 27) { # WWV info
 706
 707                         # route 'foreign' pc27s
 708                         if ($pcno == 27) {
 709                                 if ($field[8] ne $main::mycall) {
 710                                         $self->route($field[8], $line);
 711                                         return;
 712                                 }
 713                         }
 714
 715                         # do some de-duping
 716                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 717                         my $sfi = unpad($field[3]);
 718                         my $k = unpad($field[4]);
 719                         my $i = unpad($field[5]);
 720                         my ($r) = $field[6] =~ /R=(\d+)/;
 721                         $r = 0 unless $r;
 722                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 723                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 724                                 return;
 725                         }
 726                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 727                                 dbg('chan', "Dup WWV Spot ignored\n");
 728                                 return;
 729                         }
 730                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 731
 732                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 733
 734                         my $rep;
 735                         eval {
 736                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 737                         };
 738 #                       dbg('local', "Local::wwv2 error $@") if $@;
 739                         return if $rep;
 740
 741                         # DON'T be silly and send on PC27s!
 742                         return if $pcno == 27;
 743
 744                         # broadcast to the eager world
 745                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 746                         return;
 747                 }
 748
 749                 if ($pcno == 24) {              # set here status
 750                         my $call = uc $field[1];
 751                         my $ref = DXCluster->get_exact($call);
 752                         $ref->here($field[2]) if $ref;
 753                         last SWITCH;
 754                 }
 755
 756                 if ($pcno == 25) {      # merge request
 757                         if ($field[1] ne $main::mycall) {
 758                                 $self->route($field[1], $line);
 759                                 return;
 760                         }
 761                         if ($field[2] eq $main::mycall) {
 762                                 dbg('chan', "Trying to merge to myself, ignored");
 763                                 return;
 764                         }
 765
 766                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 767
 768                         # spots
 769                         if ($field[3] > 0) {
 770                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 771                                 my $in;
 772                                 foreach $in (@in) {
 773                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 774                                 }
 775                         }
 776
 777                         # wwv
 778                         if ($field[4] > 0) {
 779                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 780                                 my $in;
 781                                 foreach $in (@in) {
 782                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 783                                 }
 784                         }
 785                         return;
 786                 }
 787
 788                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 789                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 790                                 DXMsg::process($self, $line);
 791                         } else {
 792                                 $self->route($field[1], $line) unless $self->is_clx;
 793                         }
 794                         return;
 795                 }
 796
 797                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 798                         if ($field[1] eq $main::mycall) {
 799                                 my $ref = DXUser->get_current($field[2]);
 800                                 my $cref = DXCluster->get($field[2]);
 801                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 802                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 803                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 804                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 805                                                 my $oldpriv = $self->{priv};
 806                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 807                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 808                                                 $self->{priv} = $oldpriv;
 809                                                 for (@in) {
 810                                                         s/\s*$//og;
 811                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 812                                                         Log('rcmd', 'out', $field[2], $_);
 813                                                 }
 814                                                 delete $self->{remotecmd};
 815                                         } else {
 816                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 817                                         }
 818                                 } else {
 819                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 820                                 }
 821                         } else {
 822                                 my $ref = DXUser->get_current($field[1]);
 823                                 if ($ref && $ref->is_clx) {
 824                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 825                                 } else {
 826                                         $self->route($field[1], $line);
 827                                 }
 828                         }
 829                         return;
 830                 }
 831
 832                 if ($pcno == 35) {              # remote command replies
 833                         if ($field[1] eq $main::mycall) {
 834                                 my $s = $rcmds{$field[2]};
 835                                 if ($s) {
 836                                         my $dxchan = DXChannel->get($s->{call});
 837                                         $dxchan->send($field[3]) if $dxchan;
 838                                         delete $rcmds{$field[2]} if !$dxchan;
 839                                 } else {
 840                                         # send unsolicited ones to the sysop
 841                                         my $dxchan = DXChannel->get($main::myalias);
 842                                         $dxchan->send($field[3]) if $dxchan;
 843                                 }
 844                         } else {
 845                                 my $ref = DXUser->get_current($field[1]);
 846                                 if ($ref && $ref->is_clx) {
 847                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 848                                 } else {
 849                                         $self->route($field[1], $line);
 850                                 }
 851                         }
 852                         return;
 853                 }
 854
 855                 # for pc 37 see 44 onwards
 856
 857                 if ($pcno == 38) {              # node connected list from neighbour
 858                         return;
 859                 }
 860
 861                 if ($pcno == 39) {              # incoming disconnect
 862                         $self->disconnect(1);
 863                         return;
 864                 }
 865
 866                 if ($pcno == 41) {              # user info
 867                         # add this station to the user database, if required
 868                         my $user = DXUser->get_current($field[1]);
 869                         if (!$user) {
 870                                 # then try without an SSID
 871                                 $field[1] =~ s/-\d+$//o;
 872                                 $user = DXUser->get_current($field[1]);
 873                         }
 874                         $user = DXUser->new($field[1]) if !$user;
 875
 876                         if ($field[2] == 1) {
 877                                 $user->name($field[3]);
 878                         } elsif ($field[2] == 2) {
 879                                 $user->qth($field[3]);
 880                         } elsif ($field[2] == 3) {
 881                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 882                                 $user->lat($lat);
 883                                 $user->long($long);
 884                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 885                         } elsif ($field[2] == 4) {
 886                                 $user->homenode($field[3]);
 887                         }
 888                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 889                         $user->put;
 890                         last SWITCH;
 891                 }
 892                 if ($pcno == 43) {
 893                         last SWITCH;
 894                 }
 895                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 896                         DXDb::process($self, $line);
 897                         return;
 898                 }
 899
 900                 if ($pcno == 50) {              # keep alive/user list
 901                         my $node = DXCluster->get_exact($field[1]);
 902                         if ($node) {
 903                                 return unless $node->isa('DXNode');
 904                                 return unless $node->dxchan == $self;
 905                                 $node->update_users($field[2]);
 906                         }
 907                         last SWITCH;
 908                 }
 909
 910                 if ($pcno == 51) {              # incoming ping requests/answers
 911
 912                         # is it for us?
 913                         if ($field[1] eq $main::mycall) {
 914                                 my $flag = $field[3];
 915                                 if ($flag == 1) {
 916                                         $self->send(pc51($field[2], $field[1], '0'));
 917                                 } else {
 918                                         # it's a reply, look in the ping list for this one
 919                                         my $ref = $pings{$field[2]};
 920                                         if ($ref) {
 921                                                 my $tochan =  DXChannel->get($field[2]);
 922                                                 while (@$ref) {
 923                                                         my $r = shift @$ref;
 924                                                         my $dxchan = DXChannel->get($r->{call});
 925                                                         next unless $dxchan;
 926                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 927                                                         if ($dxchan->is_user) {
 928                                                                 my $s = sprintf "%.2f", $t;
 929                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 930                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 931                                                         } elsif ($dxchan->is_node) {
 932                                                                 if ($tochan) {
 933                                                                         $tochan->{nopings} = 2; # pump up the timer
 934                                                                         push @{$tochan->{pingtime}}, $t;
 935                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 936                                                                         my $st;
 937                                                                         for (@{$tochan->{pingtime}}) {
 938                                                                                 $st += $_;
 939                                                                         }
 940                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 941                                                                 }
 942                                                         }
 943                                                 }
 944                                         }
 945                                 }
 946                         } else {
 947                                 # route down an appropriate thingy
 948                                 $self->route($field[1], $line);
 949                         }
 950                         return;
 951                 }
 952
 953                 if ($pcno == 75) {              # dunno but route it
 954                         if ($field[1] ne $main::mycall) {
 955                                 $self->route($field[1], $line);
 956                         }
 957                         return;
 958                 }
 959
 960                 if ($pcno == 73) {  # WCY broadcasts
 961
 962                         # do some de-duping
 963                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 964                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 965                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 966                                 return;
 967                         }
 968                         @field = map { unpad($_) } @field;
 969                         if (WCY::dup($d,@field[3..7])) {
 970                                 dbg('chan', "Dup WCY Spot ignored\n");
 971                                 return;
 972                         }
 973
 974                         my $wcy = WCY::update($d, @field[2..12]);
 975
 976                         my $rep;
 977                         eval {
 978                                 $rep = Local::wwv($self, @field[1..12]);
 979                         };
 980                         # dbg('local', "Local::wcy error $@") if $@;
 981                         return if $rep;
 982
 983                         # broadcast to the eager world
 984                         send_wcy_spot($self, $line, $d, @field[2..12]);
 985                         return;
 986                 }
 987
 988                 if ($pcno == 84) { # remote commands (incoming)
 989                         if ($field[1] eq $main::mycall) {
 990                                 my $ref = DXUser->get_current($field[2]);
 991                                 my $cref = DXCluster->get($field[2]);
 992                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 993                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 994                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 995                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 996                                                 my $oldpriv = $self->{priv};
 997                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 998                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 999                                                 $self->{priv} = $oldpriv;
1000                                                 for (@in) {
1001                                                         s/\s*$//og;
1002                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1003                                                         Log('rcmd', 'out', $field[2], $_);
1004                                                 }
1005                                                 delete $self->{remotecmd};
1006                                         } else {
1007                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1008                                         }
1009                                 } else {
1010                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1011                                 }
1012                         } else {
1013                                 my $ref = DXUser->get_current($field[1]);
1014                                 if ($ref && $ref->is_clx) {
1015                                         $self->route($field[1], $line);
1016                                 } else {
1017                                         route($field[1], pc34($field[2], $field[1], $field[4]));
1018                                 }
1019                         }
1020                         return;
1021                 }
1022
1023                 if ($pcno == 85) {              # remote command replies
1024                         if ($field[1] eq $main::mycall) {
1025                                 my $dxchan = DXChannel->get($field[3]);
1026                                 if ($dxchan) {
1027                                         $dxchan->send($field[4]);
1028                                 } else {
1029                                         my $s = $rcmds{$field[2]};
1030                                         if ($s) {
1031                                                 $dxchan = DXChannel->get($s->{call});
1032                                                 $dxchan->send($field[4]) if $dxchan;
1033                                                 delete $rcmds{$field[2]} if !$dxchan;
1034                                         } else {
1035                                                 # send unsolicited ones to the sysop
1036                                                 my $dxchan = DXChannel->get($main::myalias);
1037                                                 $dxchan->send($field[4]) if $dxchan;
1038                                         }
1039                                 }
1040                         } else {
1041                                 my $ref = DXUser->get_current($field[1]);
1042                                 if ($ref && $ref->is_clx) {
1043                                         $self->route($field[1], $line);
1044                                 } else {
1045                                         route($field[1], pc35($field[2], $field[1], $field[4]));
1046                                 }
1047                         }
1048                         return;
1049                 }
1050         }
1051
1052         # if get here then rebroadcast the thing with its Hop count decremented (if
1053         # there is one). If it has a hop count and it decrements to zero then don't
1054         # rebroadcast it.
1055         #
1056         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1057         #        REBROADCAST!!!!
1058         #
1059
1060         unless ($self->{isolate}) {
1061                 broadcast_ak1a($line, $self); # send it to everyone but me
1062         }
1063 }
1064
1065 #
1066 # This is called from inside the main cluster processing loop and is used
1067 # for despatching commands that are doing some long processing job
1068 #
1069 sub process
1070 {
1071         my $t = time;
1072         my @dxchan = DXChannel->get_all();
1073         my $dxchan;
1074
1075         foreach $dxchan (@dxchan) {
1076                 next unless $dxchan->is_node();
1077                 next if $dxchan == $me;
1078
1079                 # send a pc50 out on this channel
1080                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1081                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1082                         $dxchan->pc50_t($t);
1083                 }
1084
1085                 # send a ping out on this channel
1086                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1087                         if ($dxchan->{nopings} <= 0) {
1088                                 $dxchan->disconnect;
1089                         } else {
1090                                 addping($main::mycall, $dxchan->call);
1091                                 $dxchan->{nopings} -= 1;
1092                                 $dxchan->{lastping} = $t;
1093                         }
1094                 }
1095         }
1096
1097         my $key;
1098         my $val;
1099         my $cutoff;
1100         if ($main::systime - 3600 > $last_hour) {
1101 #               Spot::process;
1102 #               Geomag::process;
1103 #               AnnTalk::process;
1104                 $last_hour = $main::systime;
1105         }
1106 }
1107
1108 #
1109 # finish up a pc context
1110 #
1111 sub finish
1112 {
1113         my $self = shift;
1114         my $call = $self->call;
1115         my $conn = shift;
1116         my $ref = DXCluster->get_exact($call);
1117
1118         # unbusy and stop and outgoing mail
1119         my $mref = DXMsg::get_busy($call);
1120         $mref->stop_msg($call) if $mref;
1121
1122         # broadcast to all other nodes that all the nodes connected to via me are gone
1123         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1124         my $node;
1125
1126         foreach $node (@gonenodes) {
1127                 next if $node->call eq $call;
1128                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1129                 $node->del();
1130         }
1131
1132         # remove outstanding pings
1133         delete $pings{$call};
1134
1135         # now broadcast to all other ak1a nodes that I have gone
1136         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1137
1138         # I was the last node visited
1139     $self->user->node($main::mycall);
1140
1141         # send info to all logged in thingies
1142         $self->tell_login('logoutn');
1143
1144         Log('DXProt', $call . " Disconnected");
1145         $ref->del() if $ref;
1146 }
1147
1148 #
1149 # some active measures
1150 #
1151 sub send_dx_spot
1152 {
1153         my $self = shift;
1154         my $line = shift;
1155         my @dxchan = DXChannel->get_all();
1156         my $dxchan;
1157
1158         # send it if it isn't the except list and isn't isolated and still has a hop count
1159         # taking into account filtering and so on
1160         foreach $dxchan (@dxchan) {
1161                 my $routeit;
1162                 my ($filter, $hops);
1163
1164                 if ($dxchan->{spotsfilter}) {
1165                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1166                         next unless $filter;
1167                 }
1168
1169                 if ($dxchan->is_node) {
1170                         next if $dxchan == $self;
1171                         if ($hops) {
1172                                 $routeit = $line;
1173                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1174                         } else {
1175                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1176                                 next unless $routeit;
1177                         }
1178                         if ($filter) {
1179                                 $dxchan->send($routeit) if $routeit;
1180                         } else {
1181                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1182                         }
1183                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1184                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1185                         $buf .= "\a\a" if $dxchan->{beep};
1186                         $buf =~ s/\%5E/^/g;
1187                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1188                                 $dxchan->send($buf);
1189                         } else {
1190                                 $dxchan->delay($buf);
1191                         }
1192                 }
1193         }
1194 }
1195
1196 sub send_wwv_spot
1197 {
1198         my $self = shift;
1199         my $line = shift;
1200         my @dxchan = DXChannel->get_all();
1201         my $dxchan;
1202
1203         # send it if it isn't the except list and isn't isolated and still has a hop count
1204         # taking into account filtering and so on
1205         foreach $dxchan (@dxchan) {
1206                 my $routeit;
1207                 my ($filter, $hops);
1208
1209                 if ($dxchan->{wwvfilter}) {
1210                          ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call} );
1211                          next unless $filter;
1212                 }
1213                 if ($dxchan->is_node) {
1214                         next if $dxchan == $self;
1215                         if ($hops) {
1216                                 $routeit = $line;
1217                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1218                         } else {
1219                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1220                                 next unless $routeit;
1221                         }
1222                         if ($filter) {
1223                                 $dxchan->send($routeit) if $routeit;
1224                         } else {
1225                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1226
1227                         }
1228                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1229                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1230                         $buf .= "\a\a" if $dxchan->{beep};
1231                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1232                                 $dxchan->send($buf);
1233                         } else {
1234                                 $dxchan->delay($buf);
1235                         }
1236                 }
1237         }
1238 }
1239
1240 sub send_wcy_spot
1241 {
1242         my $self = shift;
1243         my $line = shift;
1244         my @dxchan = DXChannel->get_all();
1245         my $dxchan;
1246
1247         # send it if it isn't the except list and isn't isolated and still has a hop count
1248         # taking into account filtering and so on
1249         foreach $dxchan (@dxchan) {
1250                 my $routeit;
1251                 my ($filter, $hops);
1252
1253                 if ($dxchan->{wcyfilter}) {
1254                          ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call} );
1255                          next unless $filter;
1256                 }
1257                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1258                         next if $dxchan == $self;
1259                         if ($hops) {
1260                                 $routeit = $line;
1261                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1262                         } else {
1263                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1264                                 next unless $routeit;
1265                         }
1266                         if ($filter) {
1267                                 $dxchan->send($routeit) if $routeit;
1268                         } else {
1269                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1270                         }
1271                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1272                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1273                         $buf .= "\a\a" if $dxchan->{beep};
1274                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1275                                 $dxchan->send($buf);
1276                         } else {
1277                                 $dxchan->delay($buf);
1278                         }
1279                 }
1280         }
1281 }
1282
1283 # send an announce
1284 sub send_announce
1285 {
1286         my $self = shift;
1287         my $line = shift;
1288         my @dxchan = DXChannel->get_all();
1289         my $dxchan;
1290         my $text = unpad($_[2]);
1291         my $target;
1292         my $to = 'To ';
1293
1294         if ($_[3] eq '*') {     # sysops
1295                 $target = "SYSOP";
1296         } elsif ($_[3] gt ' ') { # speciality list handling
1297                 my ($name) = split /\./, $_[3];
1298                 $target = "$name"; # put the rest in later (if bothered)
1299         }
1300
1301         if ($_[5] eq '1') {
1302                 $target = "WX";
1303                 $to = '';
1304         }
1305         $target = "All" if !$target;
1306
1307         Log('ann', $target, $_[0], $text);
1308
1309         # send it if it isn't the except list and isn't isolated and still has a hop count
1310         # taking into account filtering and so on
1311         foreach $dxchan (@dxchan) {
1312                 my $routeit;
1313                 my ($filter, $hops);
1314
1315                 if ($dxchan->{annfilter}) {
1316                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1317                         my @dxcc = Prefix::extract($_[0]);
1318                         if (@dxcc > 0) {
1319                                 $ann_dxcc = $dxcc[1]->dxcc;
1320                                 $ann_itu = $dxcc[1]->itu;
1321                                 $ann_cq = $dxcc[1]->cq;
1322                         }
1323                         @dxcc = Prefix::extract($_[4]);
1324                         if (@dxcc > 0) {
1325                                 $org_dxcc = $dxcc[1]->dxcc;
1326                                 $org_itu = $dxcc[1]->itu;
1327                                 $org_cq = $dxcc[1]->cq;
1328                         }
1329                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1330                         next unless $filter;
1331                 }
1332                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1333                         next if $dxchan == $self;
1334                         if ($hops) {
1335                                 $routeit = $line;
1336                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1337                         } else {
1338                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1339                                 next unless $routeit;
1340                         }
1341                         if ($filter) {
1342                                 $dxchan->send($routeit) if $routeit;
1343                         } else {
1344                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1345
1346                         }
1347                 } elsif ($dxchan->is_user) {
1348                         unless ($dxchan->{ann}) {
1349                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1350                         }
1351                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1352                         my $buf = "$to$target de $_[0]: $text";
1353                         $buf =~ s/\%5E/^/g;
1354                         $buf .= "\a\a" if $dxchan->{beep};
1355                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1356                                 $dxchan->send($buf);
1357                         } else {
1358                                 $dxchan->delay($buf);
1359                         }
1360                 }
1361         }
1362 }
1363
1364 sub send_local_config
1365 {
1366         my $self = shift;
1367         my $n;
1368         my @nodes;
1369         my @localnodes;
1370         my @remotenodes;
1371
1372         # send our nodes
1373         if ($self->{isolate}) {
1374                 @localnodes = (DXCluster->get_exact($main::mycall));
1375         } else {
1376                 # create a list of all the nodes that are not connected to this connection
1377                 # and are not themselves isolated, this to make sure that isolated nodes
1378         # don't appear outside of this node
1379                 @nodes = DXNode::get_all();
1380                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1381                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1382                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1383                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1384                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1385                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1386         }
1387
1388         my @s = $me->pc19(@localnodes, @remotenodes);
1389         for (@s) {
1390                 my $routeit = adjust_hops($self, $_);
1391                 $self->send($routeit) if $routeit;
1392         }
1393
1394         # get all the users connected on the above nodes and send them out
1395         foreach $n (@localnodes, @remotenodes) {
1396                 my @users = values %{$n->list};
1397                 my @s = pc16($n, @users);
1398                 for (@s) {
1399                         my $routeit = adjust_hops($self, $_);
1400                         $self->send($routeit) if $routeit;
1401                 }
1402         }
1403 }
1404
1405 #
1406 # route a message down an appropriate interface for a callsign
1407 #
1408 # is called route(to, pcline);
1409 #
1410 sub route
1411 {
1412         my ($self, $call, $line) = @_;
1413
1414         if (ref $self && $call eq $self->{call}) {
1415                 dbg('chan', "Trying to route back to source, dropped");
1416                 return;
1417         }
1418
1419         # always send it down the local interface if available
1420         my $dxchan = DXChannel->get($call);
1421         unless ($dxchan) {
1422                 my $cl = DXCluster->get_exact($call);
1423                 $dxchan = $cl->dxchan if $cl;
1424         }
1425         if ($dxchan) {
1426                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1427                 if ($routeit) {
1428                         $dxchan->send($routeit);
1429                 }
1430         }
1431 }
1432
1433 # broadcast a message to all clusters taking into account isolation
1434 # [except those mentioned after buffer]
1435 sub broadcast_ak1a
1436 {
1437         my $s = shift;                          # the line to be rebroadcast
1438         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1439         my @dxchan = DXChannel::get_all_nodes();
1440         my $dxchan;
1441
1442         # send it if it isn't the except list and isn't isolated and still has a hop count
1443         foreach $dxchan (@dxchan) {
1444                 next if grep $dxchan == $_, @except;
1445                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1446                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1447         }
1448 }
1449
1450 # broadcast a message to all clusters ignoring isolation
1451 # [except those mentioned after buffer]
1452 sub broadcast_all_ak1a
1453 {
1454         my $s = shift;                          # the line to be rebroadcast
1455         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1456         my @dxchan = DXChannel::get_all_nodes();
1457         my $dxchan;
1458
1459         # send it if it isn't the except list and isn't isolated and still has a hop count
1460         foreach $dxchan (@dxchan) {
1461                 next if grep $dxchan == $_, @except;
1462                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1463                 $dxchan->send($routeit);
1464         }
1465 }
1466
1467 # broadcast to all users
1468 # storing the spot or whatever until it is in a state to receive it
1469 sub broadcast_users
1470 {
1471         my $s = shift;                          # the line to be rebroadcast
1472         my $sort = shift;           # the type of transmission
1473         my $fref = shift;           # a reference to an object to filter on
1474         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1475         my @dxchan = DXChannel::get_all_users();
1476         my $dxchan;
1477         my @out;
1478
1479         foreach $dxchan (@dxchan) {
1480                 next if grep $dxchan == $_, @except;
1481                 push @out, $dxchan;
1482         }
1483         broadcast_list($s, $sort, $fref, @out);
1484 }
1485
1486 # broadcast to a list of users
1487 sub broadcast_list
1488 {
1489         my $s = shift;
1490         my $sort = shift;
1491         my $fref = shift;
1492         my $dxchan;
1493
1494         foreach $dxchan (@_) {
1495                 my $filter = 1;
1496
1497                 if ($sort eq 'dx') {
1498                     next unless $dxchan->{dx};
1499                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1500                         next unless $filter;
1501                 }
1502                 next if $sort eq 'ann' && !$dxchan->{ann};
1503                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1504                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1505                 next if $sort eq 'wx' && !$dxchan->{wx};
1506
1507                 $s =~ s/\a//og unless $dxchan->{beep};
1508
1509                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1510                         $dxchan->send($s);
1511                 } else {
1512                         $dxchan->delay($s);
1513                 }
1514         }
1515 }
1516
1517
1518 #
1519 # obtain the hops from the list for this callsign and pc no
1520 #
1521
1522 sub get_hops
1523 {
1524         my $pcno = shift;
1525         my $hops = $DXProt::hopcount{$pcno};
1526         $hops = $DXProt::def_hopcount if !$hops;
1527         return "H$hops";
1528 }
1529
1530 #
1531 # adjust the hop count on a per node basis using the user loadable
1532 # hop table if available or else decrement an existing one
1533 #
1534
1535 sub adjust_hops
1536 {
1537         my $self = shift;
1538         my $s = shift;
1539         my $call = $self->{call};
1540         my $hops;
1541
1542         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1543                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1544                 confess "$call called adjust_hops with '$s'" unless $pcno;
1545                 my $ref = $nodehops{$call} if %nodehops;
1546                 if ($ref) {
1547                         my $newhops = $ref->{$pcno};
1548                         return "" if defined $newhops && $newhops == 0;
1549                         $newhops = $ref->{default} unless $newhops;
1550                         return "" if defined $newhops && $newhops == 0;
1551                         $newhops = $hops if !$newhops;
1552                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1553                 } else {
1554                         # simply decrement it
1555                         $hops--;
1556                         return "" if !$hops;
1557                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1558                 }
1559         }
1560         return $s;
1561 }
1562
1563 #
1564 # load hop tables
1565 #
1566 sub load_hops
1567 {
1568         my $self = shift;
1569         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1570         do "$main::data/hop_table.pl";
1571         return $@ if $@;
1572         return 0;
1573 }
1574
1575
1576 # add a ping request to the ping queues
1577 sub addping
1578 {
1579         my ($from, $to) = @_;
1580         my $ref = $pings{$to} || [];
1581         my $r = {};
1582         $r->{call} = $from;
1583         $r->{t} = [ gettimeofday ];
1584         route(undef, $to, pc51($to, $main::mycall, 1));
1585         push @$ref, $r;
1586         $pings{$to} = $ref;
1587 }
1588
1589 # add a rcmd request to the rcmd queues
1590 sub addrcmd
1591 {
1592         my ($self, $to, $cmd) = @_;
1593
1594         my $r = {};
1595         $r->{call} = $self->{call};
1596         $r->{t} = $main::systime;
1597         $r->{cmd} = $cmd;
1598         $rcmds{$to} = $r;
1599
1600         my $ref = DXCluster->get_exact($to);
1601     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1602                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1603         } else {
1604                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1605         }
1606 }
1607
1608 sub disconnect
1609 {
1610         my $self = shift;
1611         my $nopc39 = shift;
1612
1613         if ($self->{conn} && !$nopc39) {
1614                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1615         }
1616
1617         $self->SUPER::disconnect;
1618 }
1619
1620
1621 #
1622 # send a talk message to this thingy
1623 #
1624 sub talk
1625 {
1626         my ($self, $from, $to, $via, $line) = @_;
1627
1628         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1629         $self->send(DXProt::pc10($from, $to, $via, $line));
1630         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1631 }
1632 1;
1633 __END__