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 = 0;                                  # 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(pc38()) if DXNode->get_all();
 240                 $self->send(pc18());
 241                 $self->{lastping} = $main::systime;
 242         } else {
 243                 # remove from outstanding connects queue
 244                 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
 245                 $self->{lastping} = $main::systime + $self->pingint / 2;
 246         }
 247         $self->state('init');
 248         $self->pc50_t(time);
 249
 250         # send info to all logged in thingies
 251         $self->tell_login('loginn');
 252
 253         Log('DXProt', "$call connected");
 254 }
 255
 256 #
 257 # This is the normal pcxx despatcher
 258 #
 259 sub normal
 260 {
 261         my ($self, $line) = @_;
 262         my @field = split /\^/, $line;
 263         return unless @field;
 264
 265         pop @field if $field[-1] eq '~';
 266
 267 #       print join(',', @field), "\n";
 268
 269         # ignore any lines that don't start with PC
 270         return if !$field[0] =~ /^PC/;
 271
 272         # process PC frames
 273         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 274         return unless $pcno;
 275         return if $pcno < 10 || $pcno > 99;
 276
 277         # check for and dump bad protocol messages
 278         my $n = check($pcno, @field);
 279         if ($n) {
 280                 dbg('chan', "PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 281                 return;
 282         }
 283
 284         # local processing 1
 285         my $pcr;
 286         eval {
 287                 $pcr = Local::pcprot($self, $pcno, @field);
 288         };
 289 #       dbg('local', "Local::pcprot error $@") if $@;
 290         return if $pcr;
 291
 292  SWITCH: {
 293                 if ($pcno == 10) {              # incoming talk
 294
 295                         # will we allow it at all?
 296                         if ($censorpc) {
 297                                 my @bad;
 298                                 if (@bad = BadWords::check($field[3])) {
 299                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 300                                         return;
 301                                 }
 302                         }
 303
 304                         # is it for me or one of mine?
 305                         my ($to, $via, $call, $dxchan);
 306                         if ($field[5] gt ' ') {
 307                                 $call = $via = $field[2];
 308                                 $to = $field[5];
 309                         } else {
 310                                 $call = $to = $field[2];
 311                         }
 312                         $dxchan = DXChannel->get($call);
 313                         if ($dxchan && $dxchan->is_user) {
 314                                 $field[3] =~ s/\%5E/^/g;
 315                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 316                         } else {
 317                                 $self->route($field[2], $line); # relay it on its way
 318                         }
 319                         return;
 320                 }
 321
 322                 if ($pcno == 11 || $pcno == 26) { # dx spot
 323
 324                         # route 'foreign' pc26s
 325                         if ($pcno == 26) {
 326                                 if ($field[7] ne $main::mycall) {
 327                                         $self->route($field[7], $line);
 328                                         return;
 329                                 }
 330                         }
 331
 332                         # if this is a 'nodx' node then ignore it
 333                         if ($badnode->in($field[7])) {
 334                                 dbg('chan', "PCPROT: Bad Node, dropped");
 335                                 return;
 336                         }
 337
 338                         # if this is a 'bad spotter' user then ignore it
 339                         if ($badspotter->in($field[6])) {
 340                                 dbg('chan', "PCPROT: Bad Spotter, dropped");
 341                                 return;
 342                         }
 343
 344                         # convert the date to a unix date
 345                         my $d = cltounix($field[3], $field[4]);
 346                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 347                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 348                                 dbg('chan', "PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 349                                 return;
 350                         }
 351
 352                         # is it 'baddx'
 353                         if ($baddx->in($field[2])) {
 354                                 dbg('chan', "PCPROT: Bad DX spot, ignored");
 355                                 return;
 356                         }
 357
 358                         # do some de-duping
 359                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 360                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 361                                 dbg('chan', "PCPROT: Duplicate Spot ignored\n");
 362                                 return;
 363                         }
 364                         if ($censorpc) {
 365                                 my @bad;
 366                                 if (@bad = BadWords::check($field[5])) {
 367                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 368                                         return;
 369                                 }
 370                         }
 371
 372                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 373
 374             #
 375                         # @spot at this point contains:-
 376             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 377                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 378                         # you should be able to route on any of these
 379             #
 380
 381                         # fix up qra locators of known users
 382                         my $user = DXUser->get_current($spot[4]);
 383                         if ($user) {
 384                                 my $qra = $user->qra;
 385                                 unless ($qra && DXBearing::is_qra($qra)) {
 386                                         my $lat = $user->lat;
 387                                         my $long = $user->long;
 388                                         if (defined $lat && defined $long) {
 389                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 390                                                 $user->put;
 391                                         }
 392                                 }
 393
 394                                 # send a remote command to a distant cluster if it is visible and there is no
 395                                 # qra locator and we havn't done it for a month.
 396
 397                                 unless ($user->qra) {
 398                                         my $node;
 399                                         my $to = $user->homenode;
 400                                         my $last = $user->lastoper || 0;
 401                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 402                                                 my $cmd = "forward/opernam $spot[4]";
 403                                                 # send the rcmd but we aren't interested in the replies...
 404                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 405                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 406                                                 } else {
 407                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 408                                                 }
 409                                                 if ($to ne $field[7]) {
 410                                                         $to = $field[7];
 411                                                         $node = DXCluster->get_exact($to);
 412                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 413                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 414                                                         } else {
 415                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 416                                                         }
 417                                                 }
 418                                                 $user->lastoper($main::systime);
 419                                                 $user->put;
 420                                         }
 421                                 }
 422                         }
 423
 424                         # local processing
 425                         my $r;
 426                         eval {
 427                                 $r = Local::spot($self, @spot);
 428                         };
 429 #                       dbg('local', "Local::spot1 error $@") if $@;
 430                         return if $r;
 431
 432                         # DON'T be silly and send on PC26s!
 433                         return if $pcno == 26;
 434
 435                         # send out the filtered spots
 436                         send_dx_spot($self, $line, @spot) if @spot;
 437                         return;
 438                 }
 439
 440                 if ($pcno == 12) {              # announces
 441                         # announce duplicate checking
 442                         $field[3] =~ s/^\s+//;  # remove leading blanks
 443                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 444                                 dbg('chan', "PCPROT: Duplicate Announce ignored");
 445                                 return;
 446                         }
 447
 448                         if ($censorpc) {
 449                                 my @bad;
 450                                 if (@bad = BadWords::check($field[3])) {
 451                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 452                                         return;
 453                                 }
 454                         }
 455
 456                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 457
 458                                 # global ann filtering on INPUT
 459                                 if ($self->{inannfilter}) {
 460                                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
 461                                         my @dxcc = Prefix::extract($field[1]);
 462                                         if (@dxcc > 0) {
 463                                                 $ann_dxcc = $dxcc[1]->dxcc;
 464                                                 $ann_itu = $dxcc[1]->itu;
 465                                                 $ann_cq = $dxcc[1]->cq();
 466                                         }
 467                                         @dxcc = Prefix::extract($field[5]);
 468                                         if (@dxcc > 0) {
 469                                                 $org_dxcc = $dxcc[1]->dxcc;
 470                                                 $org_itu = $dxcc[1]->itu;
 471                                                 $org_cq = $dxcc[1]->cq();
 472                                         }
 473                                         my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
 474                                                                                                         $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 475                                         unless ($filter) {
 476                                                 dbg('chan', "PCPROT: Rejected by filter");
 477                                                 return;
 478                                         }
 479                                 }
 480
 481                                 # send it
 482                                 $self->send_announce($line, @field[1..6]);
 483                         } else {
 484                                 $self->route($field[2], $line);
 485                         }
 486
 487                         return;
 488                 }
 489
 490                 if ($pcno == 13) {
 491                         last SWITCH;
 492                 }
 493                 if ($pcno == 14) {
 494                         last SWITCH;
 495                 }
 496                 if ($pcno == 15) {
 497                         last SWITCH;
 498                 }
 499
 500                 if ($pcno == 16) {              # add a user
 501                         my $node = DXCluster->get_exact($field[1]);
 502                         my $dxchan;
 503                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 504                                 # add it to the node table if it isn't present and it's
 505                                 # connected locally
 506                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 507                                 dbg('chan', "PCPROT: $field[1] no PC19 yet, autovivified as node");
 508 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 509
 510                         }
 511                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 512                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 513                                 return;
 514                         }
 515                         if ($field[2] eq $main::myalias && DXChannel->get($field[1])) {
 516                                 dbg('chan', "PCPROT: trying to connect sysop from outside!");
 517                                 return;
 518                         }
 519                         unless ($node) {
 520                                 dbg('chan', "PCPROT: Node $field[1] not in config");
 521                                 return;
 522                         }
 523                         unless ($node->isa('DXNode')) {
 524                                 dbg('chan', "PCPROT: $field[1] is not a node");
 525                                 return;
 526                         }
 527                         if ($node->dxchan != $self) {
 528                                 dbg('chan', "PCPROT: $field[1] came in on wrong channel");
 529                                 return;
 530                         }
 531                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 532                                 dbg('chan', "PCPROT: $field[1] connected locally");
 533                                 return;
 534                         }
 535                         my $i;
 536
 537                         for ($i = 2; $i < $#field; $i++) {
 538                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 539                                 next unless $call && $confmode && defined $here && is_callsign($call);
 540                                 my $ref = DXCluster->get_exact($call);
 541                                 if ($ref) {
 542                                         if ($ref->isa('DXNode')) {
 543                                                 dbg('chan', "PCPROT: $call is a node");
 544                                                 next;
 545                                         }
 546                                         my $rcall = $ref->mynode->call;
 547                                         dbg('chan', "PCPROT: already have $call on $rcall");
 548                                         next;
 549                                 }
 550
 551                                 $confmode = $confmode eq '*';
 552                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 553
 554                                 # add this station to the user database, if required
 555                                 $call =~ s/-\d+$//o;        # remove ssid for users
 556                                 my $user = DXUser->get_current($call);
 557                                 $user = DXUser->new($call) if !$user;
 558                                 $user->homenode($node->call) if !$user->homenode;
 559                                 $user->node($node->call);
 560                                 $user->lastin($main::systime) unless DXChannel->get($call);
 561                                 $user->put;
 562                         }
 563
 564                         # queue up any messages (look for privates only)
 565                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 566                         last SWITCH;
 567                 }
 568
 569                 if ($pcno == 17) {              # remove a user
 570                         my $node = DXCluster->get_exact($field[2]);
 571                         my $dxchan;
 572                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 573                                 # add it to the node table if it isn't present and it's
 574                                 # connected locally
 575                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 576                                 dbg('chan', "PCPROT: $field[2] no PC19 yet, autovivified as node");
 577 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 578                         }
 579                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 580                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 581                                 return;
 582                         }
 583                         if ($field[1] eq $main::myalias && DXChannel->get($field[1])) {
 584                                 dbg('chan', "PCPROT: trying to disconnect sysop from outside!");
 585                                 return;
 586                         }
 587                         unless ($node) {
 588                                 dbg('chan', "PCPROT: Node $field[2] not in config");
 589                                 return;
 590                         }
 591                         unless ($node->isa('DXNode')) {
 592                                 dbg('chan', "PCPROT: $field[2] is not a node");
 593                                 return;
 594                         }
 595                         if ($node->dxchan != $self) {
 596                                 dbg('chan', "PCPROT: $field[2] came in on wrong channel");
 597                                 return;
 598                         }
 599                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 600                                 dbg('chan', "PCPROT: $field[2] connected locally");
 601                                 return;
 602                         }
 603                         my $ref = DXCluster->get_exact($field[1]);
 604                         if ($ref) {
 605                                 $ref->del;
 606                         } else {
 607                                 dbg('chan', "PCPROT: $field[1] not known" );
 608                                 return;
 609                         }
 610                         last SWITCH;
 611                 }
 612
 613                 if ($pcno == 18) {              # link request
 614                         $self->state('init');
 615
 616                         # first clear out any nodes on this dxchannel
 617                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 618                         foreach my $node (@gonenodes) {
 619                                 next if $node->dxchan == $DXProt::me;
 620                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 621                                 $node->del();
 622                         }
 623                         $self->send_local_config();
 624                         $self->send(pc20());
 625                         return;             # we don't pass these on
 626                 }
 627
 628                 if ($pcno == 19) {              # incoming cluster list
 629                         my $i;
 630                         my $newline = "PC19^";
 631                         for ($i = 1; $i < $#field-1; $i += 4) {
 632                                 my $here = $field[$i];
 633                                 my $call = uc $field[$i+1];
 634                                 my $confmode = $field[$i+2];
 635                                 my $ver = $field[$i+3];
 636                                 next unless defined $here && defined $confmode && is_callsign($call);
 637
 638                                 $ver = 5400 if !$ver && $allowzero;
 639
 640                                 # now check the call over
 641                                 my $node = DXCluster->get_exact($call);
 642                                 if ($node) {
 643                                         my $dxchan;
 644                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 645                                                 dbg('chan', "PCPROT: $call connected locally");
 646                                         }
 647                                     if ($node->dxchan != $self) {
 648                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 649                                                 next;
 650                                         }
 651                                         my $rcall = $node->mynode->call;
 652                                         dbg('chan', "PCPROT: already have $call on $rcall");
 653                                         next;
 654                                 }
 655
 656                                 # check for sane parameters
 657                                 next if $ver < 5000; # only works with version 5 software
 658                                 next if length $call < 3; # min 3 letter callsigns
 659
 660                                 # add it to the nodes table and outgoing line
 661                                 $newline .= "$here^$call^$confmode^$ver^";
 662                                 DXNode->new($self, $call, $confmode, $here, $ver);
 663
 664                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 665                                 my $mref = DXMsg::get_busy($call);
 666                                 $mref->stop_msg($call) if $mref;
 667
 668                                 # add this station to the user database, if required (don't remove SSID from nodes)
 669                                 my $user = DXUser->get_current($call);
 670                                 if (!$user) {
 671                                         $user = DXUser->new($call);
 672                                         $user->sort('A');
 673                                         $user->priv(1);                   # I have relented and defaulted nodes
 674                                         $self->{priv} = 1;                # to user RCMDs allowed
 675                                         $user->homenode($call);
 676                                         $user->node($call);
 677                                 }
 678                                 $user->lastin($main::systime) unless DXChannel->get($call);
 679                                 $user->put;
 680                         }
 681
 682                         return if $newline eq "PC19^";
 683
 684                         # add hop count
 685                         $newline .=  get_hops(19) . "^";
 686                         $line = $newline;
 687                         last SWITCH;
 688                 }
 689
 690                 if ($pcno == 20) {              # send local configuration
 691                         $self->send_local_config();
 692                         $self->send(pc22());
 693                         $self->state('normal');
 694                         return;
 695                 }
 696
 697                 if ($pcno == 21) {              # delete a cluster from the list
 698                         my $call = uc $field[1];
 699                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 700                                 my $node = DXCluster->get_exact($call);
 701                                 if ($node) {
 702                                         unless ($node->isa('DXNode')) {
 703                                                 dbg('chan', "PCPROT: $call is not a node");
 704                                                 return;
 705                                         }
 706                                         if ($call eq $self->{call}) {
 707                                                 dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 708                                                 return;
 709                                         }
 710                                         if ($node->dxchan != $self) {
 711                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 712                                                 return;
 713                                         }
 714                                         my $dxchan;
 715                                         if ($dxchan = DXChannel->get($call)) {
 716                                                 dbg('chan', "PCPROT: $call connected locally");
 717                                                 return;
 718                                         }
 719                                         $node->del();
 720                                 } else {
 721                                         dbg('chan', "PCPROT: $call not in table, dropped");
 722                                         return;
 723                                 }
 724                         } else {
 725                                 dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
 726                                 return;
 727                         }
 728                         last SWITCH;
 729                 }
 730
 731                 if ($pcno == 22) {
 732                         $self->state('normal');
 733                         return;
 734                 }
 735
 736                 if ($pcno == 23 || $pcno == 27) { # WWV info
 737
 738                         # route 'foreign' pc27s
 739                         if ($pcno == 27) {
 740                                 if ($field[8] ne $main::mycall) {
 741                                         $self->route($field[8], $line);
 742                                         return;
 743                                 }
 744                         }
 745
 746                         # do some de-duping
 747                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 748                         my $sfi = unpad($field[3]);
 749                         my $k = unpad($field[4]);
 750                         my $i = unpad($field[5]);
 751                         my ($r) = $field[6] =~ /R=(\d+)/;
 752                         $r = 0 unless $r;
 753                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 754                                 dbg('chan', "PCPROT: WWV Date ($field[1] $field[2]) out of range");
 755                                 return;
 756                         }
 757                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 758                                 dbg('chan', "PCPROT: Dup WWV Spot ignored\n");
 759                                 return;
 760                         }
 761                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 762
 763                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 764
 765                         my $rep;
 766                         eval {
 767                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 768                         };
 769 #                       dbg('local', "Local::wwv2 error $@") if $@;
 770                         return if $rep;
 771
 772                         # DON'T be silly and send on PC27s!
 773                         return if $pcno == 27;
 774
 775                         # broadcast to the eager world
 776                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 777                         return;
 778                 }
 779
 780                 if ($pcno == 24) {              # set here status
 781                         my $call = uc $field[1];
 782                         my $ref = DXCluster->get_exact($call);
 783                         $ref->here($field[2]) if $ref;
 784                         last SWITCH;
 785                 }
 786
 787                 if ($pcno == 25) {      # merge request
 788                         if ($field[1] ne $main::mycall) {
 789                                 $self->route($field[1], $line);
 790                                 return;
 791                         }
 792                         if ($field[2] eq $main::mycall) {
 793                                 dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 794                                 return;
 795                         }
 796
 797                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 798
 799                         # spots
 800                         if ($field[3] > 0) {
 801                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 802                                 my $in;
 803                                 foreach $in (@in) {
 804                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 805                                 }
 806                         }
 807
 808                         # wwv
 809                         if ($field[4] > 0) {
 810                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 811                                 my $in;
 812                                 foreach $in (@in) {
 813                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 814                                 }
 815                         }
 816                         return;
 817                 }
 818
 819                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 820                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 821                                 DXMsg::process($self, $line);
 822                         } else {
 823                                 $self->route($field[1], $line) unless $self->is_clx;
 824                         }
 825                         return;
 826                 }
 827
 828                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 829                         if ($field[1] eq $main::mycall) {
 830                                 my $ref = DXUser->get_current($field[2]);
 831                                 my $cref = DXCluster->get($field[2]);
 832                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 833                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 834                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 835                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 836                                                 my $oldpriv = $self->{priv};
 837                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 838                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 839                                                 $self->{priv} = $oldpriv;
 840                                                 for (@in) {
 841                                                         s/\s*$//og;
 842                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 843                                                         Log('rcmd', 'out', $field[2], $_);
 844                                                 }
 845                                                 delete $self->{remotecmd};
 846                                         } else {
 847                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 848                                         }
 849                                 } else {
 850                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 851                                 }
 852                         } else {
 853                                 my $ref = DXUser->get_current($field[1]);
 854                                 if ($ref && $ref->is_clx) {
 855                                         $self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 856                                 } else {
 857                                         $self->route($field[1], $line);
 858                                 }
 859                         }
 860                         return;
 861                 }
 862
 863                 if ($pcno == 35) {              # remote command replies
 864                         if ($field[1] eq $main::mycall) {
 865                                 my $s = $rcmds{$field[2]};
 866                                 if ($s) {
 867                                         my $dxchan = DXChannel->get($s->{call});
 868                                         $dxchan->send($field[3]) if $dxchan;
 869                                         delete $rcmds{$field[2]} if !$dxchan;
 870                                 } else {
 871                                         # send unsolicited ones to the sysop
 872                                         my $dxchan = DXChannel->get($main::myalias);
 873                                         $dxchan->send($field[3]) if $dxchan;
 874                                 }
 875                         } else {
 876                                 my $ref = DXUser->get_current($field[1]);
 877                                 if ($ref && $ref->is_clx) {
 878                                         $self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 879                                 } else {
 880                                         $self->route($field[1], $line);
 881                                 }
 882                         }
 883                         return;
 884                 }
 885
 886                 # for pc 37 see 44 onwards
 887
 888                 if ($pcno == 38) {              # node connected list from neighbour
 889                         return;
 890                 }
 891
 892                 if ($pcno == 39) {              # incoming disconnect
 893                         if ($field[1] eq $self->{call}) {
 894                                 $self->disconnect(1);
 895                         } else {
 896                                 dbg('chan', "PCPROT: came in on wrong channel");
 897                         }
 898                         return;
 899                 }
 900
 901                 if ($pcno == 41) {              # user info
 902                         # add this station to the user database, if required
 903                         my $user = DXUser->get_current($field[1]);
 904                         $user = DXUser->new($field[1]) if !$user;
 905
 906                         if ($field[2] == 1) {
 907                                 $user->name($field[3]);
 908                         } elsif ($field[2] == 2) {
 909                                 $user->qth($field[3]);
 910                         } elsif ($field[2] == 3) {
 911                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 912                                 $user->lat($lat);
 913                                 $user->long($long);
 914                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 915                         } elsif ($field[2] == 4) {
 916                                 $user->homenode($field[3]);
 917                         }
 918                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 919                         $user->put;
 920                         last SWITCH;
 921                 }
 922                 if ($pcno == 43) {
 923                         last SWITCH;
 924                 }
 925                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 926                         DXDb::process($self, $line);
 927                         return;
 928                 }
 929
 930                 if ($pcno == 50) {              # keep alive/user list
 931                         my $node = DXCluster->get_exact($field[1]);
 932                         if ($node) {
 933                                 return unless $node->isa('DXNode');
 934                                 return unless $node->dxchan == $self;
 935                                 $node->update_users($field[2]);
 936                         }
 937                         last SWITCH;
 938                 }
 939
 940                 if ($pcno == 51) {              # incoming ping requests/answers
 941
 942                         # is it for us?
 943                         if ($field[1] eq $main::mycall) {
 944                                 my $flag = $field[3];
 945                                 if ($flag == 1) {
 946                                         $self->send(pc51($field[2], $field[1], '0'));
 947                                 } else {
 948                                         # it's a reply, look in the ping list for this one
 949                                         my $ref = $pings{$field[2]};
 950                                         if ($ref) {
 951                                                 my $tochan =  DXChannel->get($field[2]);
 952                                                 while (@$ref) {
 953                                                         my $r = shift @$ref;
 954                                                         my $dxchan = DXChannel->get($r->{call});
 955                                                         next unless $dxchan;
 956                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 957                                                         if ($dxchan->is_user) {
 958                                                                 my $s = sprintf "%.2f", $t;
 959                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 960                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 961                                                         } elsif ($dxchan->is_node) {
 962                                                                 if ($tochan) {
 963                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
 964                                                                         push @{$tochan->{pingtime}}, $t;
 965                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 966                                                                         my $st;
 967                                                                         for (@{$tochan->{pingtime}}) {
 968                                                                                 $st += $_;
 969                                                                         }
 970                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 971                                                                 }
 972                                                         }
 973                                                 }
 974                                         }
 975                                 }
 976                         } else {
 977                                 # route down an appropriate thingy
 978                                 $self->route($field[1], $line);
 979                         }
 980                         return;
 981                 }
 982
 983                 if ($pcno == 75) {              # dunno but route it
 984                         if ($field[1] ne $main::mycall) {
 985                                 $self->route($field[1], $line);
 986                         }
 987                         return;
 988                 }
 989
 990                 if ($pcno == 73) {  # WCY broadcasts
 991
 992                         # do some de-duping
 993                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 994                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 995                                 dbg('chan', "PCPROT: WCY Date ($field[1] $field[2]) out of range");
 996                                 return;
 997                         }
 998                         @field = map { unpad($_) } @field;
 999                         if (WCY::dup($d,@field[3..7])) {
1000                                 dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
1001                                 return;
1002                         }
1003
1004                         my $wcy = WCY::update($d, @field[2..12]);
1005
1006                         my $rep;
1007                         eval {
1008                                 $rep = Local::wwv($self, @field[1..12]);
1009                         };
1010                         # dbg('local', "Local::wcy error $@") if $@;
1011                         return if $rep;
1012
1013                         # broadcast to the eager world
1014                         send_wcy_spot($self, $line, $d, @field[2..12]);
1015                         return;
1016                 }
1017
1018                 if ($pcno == 84) { # remote commands (incoming)
1019                         if ($field[1] eq $main::mycall) {
1020                                 my $ref = DXUser->get_current($field[2]);
1021                                 my $cref = DXCluster->get($field[2]);
1022                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1023                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1024                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1025                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1026                                                 my $oldpriv = $self->{priv};
1027                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1028                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1029                                                 $self->{priv} = $oldpriv;
1030                                                 for (@in) {
1031                                                         s/\s*$//og;
1032                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1033                                                         Log('rcmd', 'out', $field[2], $_);
1034                                                 }
1035                                                 delete $self->{remotecmd};
1036                                         } else {
1037                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1038                                         }
1039                                 } else {
1040                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1041                                 }
1042                         } else {
1043                                 my $ref = DXUser->get_current($field[1]);
1044                                 if ($ref && $ref->is_clx) {
1045                                         $self->route($field[1], $line);
1046                                 } else {
1047                                         $self->route($field[1], pc34($field[2], $field[1], $field[4]));
1048                                 }
1049                         }
1050                         return;
1051                 }
1052
1053                 if ($pcno == 85) {              # remote command replies
1054                         if ($field[1] eq $main::mycall) {
1055                                 my $dxchan = DXChannel->get($field[3]);
1056                                 if ($dxchan) {
1057                                         $dxchan->send($field[4]);
1058                                 } else {
1059                                         my $s = $rcmds{$field[2]};
1060                                         if ($s) {
1061                                                 $dxchan = DXChannel->get($s->{call});
1062                                                 $dxchan->send($field[4]) if $dxchan;
1063                                                 delete $rcmds{$field[2]} if !$dxchan;
1064                                         } else {
1065                                                 # send unsolicited ones to the sysop
1066                                                 my $dxchan = DXChannel->get($main::myalias);
1067                                                 $dxchan->send($field[4]) if $dxchan;
1068                                         }
1069                                 }
1070                         } else {
1071                                 my $ref = DXUser->get_current($field[1]);
1072                                 if ($ref && $ref->is_clx) {
1073                                         $self->route($field[1], $line);
1074                                 } else {
1075                                         $self->route($field[1], pc35($field[2], $field[1], $field[4]));
1076                                 }
1077                         }
1078                         return;
1079                 }
1080         }
1081
1082         # if get here then rebroadcast the thing with its Hop count decremented (if
1083         # there is one). If it has a hop count and it decrements to zero then don't
1084         # rebroadcast it.
1085         #
1086         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1087         #        REBROADCAST!!!!
1088         #
1089
1090         unless ($self->{isolate}) {
1091                 broadcast_ak1a($line, $self); # send it to everyone but me
1092         }
1093 }
1094
1095 #
1096 # This is called from inside the main cluster processing loop and is used
1097 # for despatching commands that are doing some long processing job
1098 #
1099 sub process
1100 {
1101         my $t = time;
1102         my @dxchan = DXChannel->get_all();
1103         my $dxchan;
1104
1105         foreach $dxchan (@dxchan) {
1106                 next unless $dxchan->is_node();
1107                 next if $dxchan == $me;
1108
1109                 # send a pc50 out on this channel
1110                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1111                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1112                         $dxchan->pc50_t($t);
1113                 }
1114
1115                 # send a ping out on this channel
1116                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1117                         if ($dxchan->{nopings} <= 0) {
1118                                 $dxchan->disconnect;
1119                         } else {
1120                                 addping($main::mycall, $dxchan->call);
1121                                 $dxchan->{nopings} -= 1;
1122                                 $dxchan->{lastping} = $t;
1123                         }
1124                 }
1125         }
1126
1127         my $key;
1128         my $val;
1129         my $cutoff;
1130         if ($main::systime - 3600 > $last_hour) {
1131 #               Spot::process;
1132 #               Geomag::process;
1133 #               AnnTalk::process;
1134                 $last_hour = $main::systime;
1135         }
1136 }
1137
1138 #
1139 # finish up a pc context
1140 #
1141 sub finish
1142 {
1143         my $self = shift;
1144         my $call = $self->call;
1145         my $conn = shift;
1146         my $ref = DXCluster->get_exact($call);
1147
1148         # unbusy and stop and outgoing mail
1149         my $mref = DXMsg::get_busy($call);
1150         $mref->stop_msg($call) if $mref;
1151
1152         # broadcast to all other nodes that all the nodes connected to via me are gone
1153         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1154         my $node;
1155
1156         foreach $node (@gonenodes) {
1157                 next if $node->call eq $call;
1158                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1159                 $node->del();
1160         }
1161
1162         # remove outstanding pings
1163         delete $pings{$call};
1164
1165         # now broadcast to all other ak1a nodes that I have gone
1166         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1167
1168         # I was the last node visited
1169     $self->user->node($main::mycall);
1170
1171         # send info to all logged in thingies
1172         $self->tell_login('logoutn');
1173
1174         Log('DXProt', $call . " Disconnected");
1175         $ref->del() if $ref;
1176 }
1177
1178 #
1179 # some active measures
1180 #
1181 sub send_dx_spot
1182 {
1183         my $self = shift;
1184         my $line = shift;
1185         my @dxchan = DXChannel->get_all();
1186         my $dxchan;
1187
1188         # send it if it isn't the except list and isn't isolated and still has a hop count
1189         # taking into account filtering and so on
1190         foreach $dxchan (@dxchan) {
1191                 my $routeit;
1192                 my ($filter, $hops);
1193
1194                 if ($dxchan->{spotsfilter}) {
1195                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1196                         next unless $filter;
1197                 }
1198
1199                 if ($dxchan->is_node) {
1200                         next if $dxchan == $self;
1201                         if ($hops) {
1202                                 $routeit = $line;
1203                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1204                         } else {
1205                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1206                                 next unless $routeit;
1207                         }
1208                         if ($filter) {
1209                                 $dxchan->send($routeit) if $routeit;
1210                         } else {
1211                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1212                         }
1213                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1214                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1215                         $buf .= "\a\a" if $dxchan->{beep};
1216                         $buf =~ s/\%5E/^/g;
1217                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1218                                 $dxchan->send($buf);
1219                         } else {
1220                                 $dxchan->delay($buf);
1221                         }
1222                 }
1223         }
1224 }
1225
1226 sub send_wwv_spot
1227 {
1228         my $self = shift;
1229         my $line = shift;
1230         my @dxchan = DXChannel->get_all();
1231         my $dxchan;
1232         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1233         my @dxcc = Prefix::extract($_[7]);
1234         if (@dxcc > 0) {
1235                 $wwv_dxcc = $dxcc[1]->dxcc;
1236                 $wwv_itu = $dxcc[1]->itu;
1237                 $wwv_cq = $dxcc[1]->cq;
1238         }
1239         @dxcc = Prefix::extract($_[8]);
1240         if (@dxcc > 0) {
1241                 $org_dxcc = $dxcc[1]->dxcc;
1242                 $org_itu = $dxcc[1]->itu;
1243                 $org_cq = $dxcc[1]->cq;
1244         }
1245
1246         # send it if it isn't the except list and isn't isolated and still has a hop count
1247         # taking into account filtering and so on
1248         foreach $dxchan (@dxchan) {
1249                 my $routeit;
1250                 my ($filter, $hops);
1251
1252                 if ($dxchan->{wwvfilter}) {
1253                         ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1254                          next unless $filter;
1255                 }
1256                 if ($dxchan->is_node) {
1257                         next if $dxchan == $self;
1258                         if ($hops) {
1259                                 $routeit = $line;
1260                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1261                         } else {
1262                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1263                                 next unless $routeit;
1264                         }
1265                         if ($filter) {
1266                                 $dxchan->send($routeit) if $routeit;
1267                         } else {
1268                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1269
1270                         }
1271                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1272                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
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 sub send_wcy_spot
1284 {
1285         my $self = shift;
1286         my $line = shift;
1287         my @dxchan = DXChannel->get_all();
1288         my $dxchan;
1289         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1290         my @dxcc = Prefix::extract($_[11]);
1291         if (@dxcc > 0) {
1292                 $wcy_dxcc = $dxcc[1]->dxcc;
1293                 $wcy_itu = $dxcc[1]->itu;
1294                 $wcy_cq = $dxcc[1]->cq;
1295         }
1296         @dxcc = Prefix::extract($_[12]);
1297         if (@dxcc > 0) {
1298                 $org_dxcc = $dxcc[1]->dxcc;
1299                 $org_itu = $dxcc[1]->itu;
1300                 $org_cq = $dxcc[1]->cq;
1301         }
1302
1303         # send it if it isn't the except list and isn't isolated and still has a hop count
1304         # taking into account filtering and so on
1305         foreach $dxchan (@dxchan) {
1306                 my $routeit;
1307                 my ($filter, $hops);
1308
1309                 if ($dxchan->{wcyfilter}) {
1310                         ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1311                          next unless $filter;
1312                 }
1313                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1314                         next if $dxchan == $self;
1315                         if ($hops) {
1316                                 $routeit = $line;
1317                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1318                         } else {
1319                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1320                                 next unless $routeit;
1321                         }
1322                         if ($filter) {
1323                                 $dxchan->send($routeit) if $routeit;
1324                         } else {
1325                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1326                         }
1327                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1328                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1329                         $buf .= "\a\a" if $dxchan->{beep};
1330                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1331                                 $dxchan->send($buf);
1332                         } else {
1333                                 $dxchan->delay($buf);
1334                         }
1335                 }
1336         }
1337 }
1338
1339 # send an announce
1340 sub send_announce
1341 {
1342         my $self = shift;
1343         my $line = shift;
1344         my @dxchan = DXChannel->get_all();
1345         my $dxchan;
1346         my $text = unpad($_[2]);
1347         my $target;
1348         my $to = 'To ';
1349
1350         if ($_[3] eq '*') {     # sysops
1351                 $target = "SYSOP";
1352         } elsif ($_[3] gt ' ') { # speciality list handling
1353                 my ($name) = split /\./, $_[3];
1354                 $target = "$name"; # put the rest in later (if bothered)
1355         }
1356
1357         if ($_[5] eq '1') {
1358                 $target = "WX";
1359                 $to = '';
1360         }
1361         $target = "ALL" if !$target;
1362
1363         Log('ann', $target, $_[0], $text);
1364
1365         # obtain country codes etc
1366         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1367         my @dxcc = Prefix::extract($_[0]);
1368         if (@dxcc > 0) {
1369                 $ann_dxcc = $dxcc[1]->dxcc;
1370                 $ann_itu = $dxcc[1]->itu;
1371                 $ann_cq = $dxcc[1]->cq;
1372         }
1373         @dxcc = Prefix::extract($_[4]);
1374         if (@dxcc > 0) {
1375                 $org_dxcc = $dxcc[1]->dxcc;
1376                 $org_itu = $dxcc[1]->itu;
1377                 $org_cq = $dxcc[1]->cq;
1378         }
1379
1380         # send it if it isn't the except list and isn't isolated and still has a hop count
1381         # taking into account filtering and so on
1382         foreach $dxchan (@dxchan) {
1383                 my $routeit;
1384                 my ($filter, $hops);
1385
1386                 if ($dxchan->{annfilter}) {
1387                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1388                         next unless $filter;
1389                 }
1390                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1391                         next if $dxchan == $self;
1392                         if ($hops) {
1393                                 $routeit = $line;
1394                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1395                         } else {
1396                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1397                                 next unless $routeit;
1398                         }
1399                         if ($filter) {
1400                                 $dxchan->send($routeit) if $routeit;
1401                         } else {
1402                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1403
1404                         }
1405                 } elsif ($dxchan->is_user) {
1406                         unless ($dxchan->{ann}) {
1407                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1408                         }
1409                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1410                         my $buf = "$to$target de $_[0]: $text";
1411                         $buf =~ s/\%5E/^/g;
1412                         $buf .= "\a\a" if $dxchan->{beep};
1413                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1414                                 $dxchan->send($buf);
1415                         } else {
1416                                 $dxchan->delay($buf);
1417                         }
1418                 }
1419         }
1420 }
1421
1422 sub send_local_config
1423 {
1424         my $self = shift;
1425         my $n;
1426         my @nodes;
1427         my @localnodes;
1428         my @remotenodes;
1429
1430         # send our nodes
1431         if ($self->{isolate}) {
1432                 @localnodes = (DXCluster->get_exact($main::mycall));
1433         } else {
1434                 # create a list of all the nodes that are not connected to this connection
1435                 # and are not themselves isolated, this to make sure that isolated nodes
1436         # don't appear outside of this node
1437                 @nodes = DXNode::get_all();
1438                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1439                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1440                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1441                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1442                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1443                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1444         }
1445
1446         my @s = $me->pc19(@localnodes, @remotenodes);
1447         for (@s) {
1448                 my $routeit = adjust_hops($self, $_);
1449                 $self->send($routeit) if $routeit;
1450         }
1451
1452         # get all the users connected on the above nodes and send them out
1453         foreach $n (@localnodes, @remotenodes) {
1454                 my @users = values %{$n->list};
1455                 my @s = pc16($n, @users);
1456                 for (@s) {
1457                         my $routeit = adjust_hops($self, $_);
1458                         $self->send($routeit) if $routeit;
1459                 }
1460         }
1461 }
1462
1463 #
1464 # route a message down an appropriate interface for a callsign
1465 #
1466 # is called route(to, pcline);
1467 #
1468 sub route
1469 {
1470         my ($self, $call, $line) = @_;
1471
1472         if (ref $self && $call eq $self->{call}) {
1473                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1474                 return;
1475         }
1476
1477         # always send it down the local interface if available
1478         my $dxchan = DXChannel->get($call);
1479         unless ($dxchan) {
1480                 my $cl = DXCluster->get_exact($call);
1481                 $dxchan = $cl->dxchan if $cl;
1482                 if (ref $dxchan) {
1483                         if (ref $self && $dxchan eq $self) {
1484                                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1485                                 return;
1486                         }
1487                 }
1488         }
1489         if ($dxchan) {
1490                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1491                 if ($routeit) {
1492                         $dxchan->send($routeit);
1493                 }
1494         } else {
1495                 dbg('chan', "PCPROT: No route available, dropped");
1496         }
1497 }
1498
1499 # broadcast a message to all clusters taking into account isolation
1500 # [except those mentioned after buffer]
1501 sub broadcast_ak1a
1502 {
1503         my $s = shift;                          # the line to be rebroadcast
1504         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1505         my @dxchan = DXChannel::get_all_nodes();
1506         my $dxchan;
1507
1508         # send it if it isn't the except list and isn't isolated and still has a hop count
1509         foreach $dxchan (@dxchan) {
1510                 next if grep $dxchan == $_, @except;
1511                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1512                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1513         }
1514 }
1515
1516 # broadcast a message to all clusters ignoring isolation
1517 # [except those mentioned after buffer]
1518 sub broadcast_all_ak1a
1519 {
1520         my $s = shift;                          # the line to be rebroadcast
1521         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1522         my @dxchan = DXChannel::get_all_nodes();
1523         my $dxchan;
1524
1525         # send it if it isn't the except list and isn't isolated and still has a hop count
1526         foreach $dxchan (@dxchan) {
1527                 next if grep $dxchan == $_, @except;
1528                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1529                 $dxchan->send($routeit);
1530         }
1531 }
1532
1533 # broadcast to all users
1534 # storing the spot or whatever until it is in a state to receive it
1535 sub broadcast_users
1536 {
1537         my $s = shift;                          # the line to be rebroadcast
1538         my $sort = shift;           # the type of transmission
1539         my $fref = shift;           # a reference to an object to filter on
1540         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1541         my @dxchan = DXChannel::get_all_users();
1542         my $dxchan;
1543         my @out;
1544
1545         foreach $dxchan (@dxchan) {
1546                 next if grep $dxchan == $_, @except;
1547                 push @out, $dxchan;
1548         }
1549         broadcast_list($s, $sort, $fref, @out);
1550 }
1551
1552 # broadcast to a list of users
1553 sub broadcast_list
1554 {
1555         my $s = shift;
1556         my $sort = shift;
1557         my $fref = shift;
1558         my $dxchan;
1559
1560         foreach $dxchan (@_) {
1561                 my $filter = 1;
1562
1563                 if ($sort eq 'dx') {
1564                     next unless $dxchan->{dx};
1565                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1566                         next unless $filter;
1567                 }
1568                 next if $sort eq 'ann' && !$dxchan->{ann};
1569                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1570                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1571                 next if $sort eq 'wx' && !$dxchan->{wx};
1572
1573                 $s =~ s/\a//og unless $dxchan->{beep};
1574
1575                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1576                         $dxchan->send($s);
1577                 } else {
1578                         $dxchan->delay($s);
1579                 }
1580         }
1581 }
1582
1583
1584 #
1585 # obtain the hops from the list for this callsign and pc no
1586 #
1587
1588 sub get_hops
1589 {
1590         my $pcno = shift;
1591         my $hops = $DXProt::hopcount{$pcno};
1592         $hops = $DXProt::def_hopcount if !$hops;
1593         return "H$hops";
1594 }
1595
1596 #
1597 # adjust the hop count on a per node basis using the user loadable
1598 # hop table if available or else decrement an existing one
1599 #
1600
1601 sub adjust_hops
1602 {
1603         my $self = shift;
1604         my $s = shift;
1605         my $call = $self->{call};
1606         my $hops;
1607
1608         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1609                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1610                 confess "$call called adjust_hops with '$s'" unless $pcno;
1611                 my $ref = $nodehops{$call} if %nodehops;
1612                 if ($ref) {
1613                         my $newhops = $ref->{$pcno};
1614                         return "" if defined $newhops && $newhops == 0;
1615                         $newhops = $ref->{default} unless $newhops;
1616                         return "" if defined $newhops && $newhops == 0;
1617                         $newhops = $hops if !$newhops;
1618                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1619                 } else {
1620                         # simply decrement it
1621                         $hops--;
1622                         return "" if !$hops;
1623                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1624                 }
1625         }
1626         return $s;
1627 }
1628
1629 #
1630 # load hop tables
1631 #
1632 sub load_hops
1633 {
1634         my $self = shift;
1635         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1636         do "$main::data/hop_table.pl";
1637         return $@ if $@;
1638         return 0;
1639 }
1640
1641
1642 # add a ping request to the ping queues
1643 sub addping
1644 {
1645         my ($from, $to) = @_;
1646         my $ref = $pings{$to} || [];
1647         my $r = {};
1648         $r->{call} = $from;
1649         $r->{t} = [ gettimeofday ];
1650         route(undef, $to, pc51($to, $main::mycall, 1));
1651         push @$ref, $r;
1652         $pings{$to} = $ref;
1653 }
1654
1655 # add a rcmd request to the rcmd queues
1656 sub addrcmd
1657 {
1658         my ($self, $to, $cmd) = @_;
1659
1660         my $r = {};
1661         $r->{call} = $self->{call};
1662         $r->{t} = $main::systime;
1663         $r->{cmd} = $cmd;
1664         $rcmds{$to} = $r;
1665
1666         my $ref = DXCluster->get_exact($to);
1667     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1668                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1669         } else {
1670                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1671         }
1672 }
1673
1674 sub disconnect
1675 {
1676         my $self = shift;
1677         my $nopc39 = shift;
1678
1679         if ($self->{conn} && !$nopc39) {
1680                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1681         }
1682
1683         $self->SUPER::disconnect;
1684 }
1685
1686
1687 #
1688 # send a talk message to this thingy
1689 #
1690 sub talk
1691 {
1692         my ($self, $from, $to, $via, $line) = @_;
1693
1694         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1695         $self->send(DXProt::pc10($from, $to, $via, $line));
1696         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1697 }
1698 1;
1699 __END__