perl/DXProt.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the protocal mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 package DXProt;
  11
  12 @ISA = qw(DXChannel);
  13
  14 use DXUtil;
  15 use DXChannel;
  16 use DXUser;
  17 use DXM;
  18 use DXCluster;
  19 use DXProtVars;
  20 use DXCommandmode;
  21 use DXLog;
  22 use Spot;
  23 use DXProtout;
  24 use DXDebug;
  25 use Filter;
  26 use Local;
  27 use DXDb;
  28 use AnnTalk;
  29 use Geomag;
  30 use WCY;
  31 use Time::HiRes qw(gettimeofday tv_interval);
  32 use BadWords;
  33 use DXHash;
  34
  35 use strict;
  36 use vars qw($me $pc11_max_age $pc23_max_age
  37                         $last_hour %pings %rcmds
  38                         %nodehops $baddx $badspotter $badnode $censorpc
  39                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  40
  41 $me = undef;                                    # the channel id for this cluster
  42 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  43 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  44
  45 $last_hour = time;                              # last time I did an hourly periodic update
  46 %pings = ();                    # outstanding ping requests outbound
  47 %rcmds = ();                    # outstanding rcmd requests outbound
  48 %nodehops = ();                 # node specific hop control
  49 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  50                                                                 # loads of 'bad things'
  51 $baddx = new DXHash "baddx";
  52 $badspotter = new DXHash "badspotter";
  53 $badnode = new DXHash "badnode";
  54
  55 @checklist =
  56 (
  57  [ qw(c c m bp bc c) ],                 # pc10
  58  [ qw(f m d t m c c h) ],               # pc11
  59  [ qw(c bc m bp bm p h) ],              # pc12
  60  [ qw(c h) ],                                   #
  61  [ qw(c h) ],                                   #
  62  [ qw(c m h) ],                                 #
  63  undef ,                                                # pc16 has to be validated manually
  64  [ qw(c c h) ],                                 # pc17
  65  [ qw(m n) ],                                   # pc18
  66  undef ,                                                # pc19 has to be validated manually
  67  undef ,                                                # pc20 no validation
  68  [ qw(c m h) ],                                 # pc21
  69  undef ,                                                # pc22 no validation
  70  [ qw(d n n n n m c c h) ],             # pc23
  71  [ qw(c p h) ],                                 # pc24
  72  [ qw(c c n n) ],                               # pc25
  73  [ qw(f m d t m c c bc) ],              # pc26
  74  [ qw(d n n n n m c c bc) ],    # pc27
  75  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  76  [ qw(c c n m) ],                               # pc29
  77  [ qw(c c n) ],                                 # pc30
  78  [ qw(c c n) ],                                 # pc31
  79  [ qw(c c n) ],                                 # pc32
  80  [ qw(c c n) ],                                 # pc33
  81  [ qw(c c m) ],                                 # pc34
  82  [ qw(c c m) ],                                 # pc35
  83  [ qw(c c m) ],                                 # pc36
  84  [ qw(c c n m) ],                               # pc37
  85  undef,                                                 # pc38 not interested
  86  [ qw(c m) ],                                   # pc39
  87  [ qw(c c m p n) ],                             # pc40
  88  [ qw(c n m h) ],                               # pc41
  89  [ qw(c c n) ],                                 # pc42
  90  undef,                                                 # pc43 don't handle it
  91  [ qw(c c n m m c) ],                   # pc44
  92  [ qw(c c n m) ],                               # pc45
  93  [ qw(c c n) ],                                 # pc46
  94  undef,                                                 # pc47
  95  undef,                                                 # pc48
  96  [ qw(c m h) ],                                 # pc49
  97  [ qw(c n h) ],                                 # pc50
  98  [ qw(c c n) ],                                 # pc51
  99  undef,
 100  undef,
 101  undef,
 102  undef,
 103  undef,
 104  undef,
 105  undef,
 106  undef,
 107  undef,                                                 # pc60
 108  undef,
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,
 115  undef,
 116  undef,
 117  undef,                                                 # pc70
 118  undef,
 119  undef,
 120  [ qw(d n n n n n n m m m c c h) ],     # pc73
 121  undef,
 122  undef,
 123  undef,
 124  undef,
 125  undef,
 126  undef,
 127  undef,                                                 # pc80
 128  undef,
 129  undef,
 130  undef,
 131  [ qw(c c c m) ],                               # pc84
 132  [ qw(c c c m) ],                               # pc85
 133 );
 134
 135 # use the entry in the check list to check the field list presented
 136 # return OK if line NOT in check list (for now)
 137 sub check
 138 {
 139         my $n = shift;
 140         $n -= 10;
 141         return 0 if $n < 0 || $n > @checklist;
 142         my $ref = $checklist[$n];
 143         return 0 unless ref $ref;
 144
 145         my $i;
 146         shift;    # not interested in the first field
 147         for ($i = 0; $i < @$ref; $i++) {
 148                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 149                 return 0 unless $act;
 150                 next if $blank && $_[$i] =~ /^[ \*]$/;
 151                 if ($act eq 'c') {
 152                         return $i+1 unless is_callsign($_[$i]);
 153                 } elsif ($act eq 'm') {
 154                         return $i+1 unless is_pctext($_[$i]);
 155                 } elsif ($act eq 'p') {
 156                         return $i+1 unless is_pcflag($_[$i]);
 157                 } elsif ($act eq 'f') {
 158                         return $i+1 unless is_freq($_[$i]);
 159                 } elsif ($act eq 'n') {
 160                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 161                 } elsif ($act eq 'h') {
 162                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 163                 } elsif ($act eq 'd') {
 164                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 165                 } elsif ($act eq 't') {
 166                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 167                 }
 168         }
 169         return 0;
 170 }
 171
 172 sub init
 173 {
 174         my $user = DXUser->get($main::mycall);
 175         $DXProt::myprot_version += $main::version*100;
 176         $me = DXProt->new($main::mycall, 0, $user);
 177         $me->{here} = 1;
 178         $me->{state} = "indifferent";
 179         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 180         confess $@ if $@;
 181         $me->{sort} = 'S';    # S for spider
 182         $me->{priv} = 9;
 183 }
 184
 185 #
 186 # obtain a new connection this is derived from dxchannel
 187 #
 188
 189 sub new
 190 {
 191         my $self = DXChannel::alloc(@_);
 192         return $self;
 193 }
 194
 195 # this is how a pc connection starts (for an incoming connection)
 196 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 197 # all the crap that comes between).
 198 sub start
 199 {
 200         my ($self, $line, $sort) = @_;
 201         my $call = $self->{call};
 202         my $user = $self->{user};
 203
 204         # remember type of connection
 205         $self->{consort} = $line;
 206         $self->{outbound} = $sort eq 'O';
 207         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 208         $self->{lang} = $user->lang || 'en';
 209         $self->{isolate} = $user->{isolate};
 210         $self->{consort} = $line;       # save the connection type
 211         $self->{here} = 1;
 212
 213         # get the output filters
 214         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 215         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 216         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 217         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 218
 219
 220         # get the INPUT filters (these only pertain to Clusters)
 221         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 222         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 223         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 224         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 225
 226         # set unbuffered and no echo
 227         $self->send_now('B',"0");
 228         $self->send_now('E',"0");
 229
 230         # ping neighbour node stuff
 231         my $ping = $user->pingint;
 232         $ping = 5*60 unless defined $ping;
 233         $self->{pingint} = $ping;
 234         $self->{nopings} = $user->nopings || 2;
 235         $self->{pingtime} = [ ];
 236         $self->{pingave} = 0;
 237
 238         # send initialisation string
 239         unless ($self->{outbound}) {
 240                 $self->send(pc18());
 241                 $self->{lastping} = $main::systime;
 242         } else {
 243                 $self->{lastping} = $main::systime + ($self->pingint / 2);
 244         }
 245         $self->state('init');
 246         $self->{pc50_t} = $main::systime;
 247
 248         # send info to all logged in thingies
 249         $self->tell_login('loginn');
 250
 251         Log('DXProt', "$call connected");
 252 }
 253
 254 #
 255 # This is the normal pcxx despatcher
 256 #
 257 sub normal
 258 {
 259         my ($self, $line) = @_;
 260         my @field = split /\^/, $line;
 261         return unless @field;
 262
 263         pop @field if $field[-1] eq '~';
 264
 265 #       print join(',', @field), "\n";
 266
 267         # ignore any lines that don't start with PC
 268         return if !$field[0] =~ /^PC/;
 269
 270         # process PC frames
 271         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 272         return unless $pcno;
 273         return if $pcno < 10 || $pcno > 99;
 274
 275         # check for and dump bad protocol messages
 276         my $n = check($pcno, @field);
 277         if ($n) {
 278                 dbg('chan', "PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 279                 return;
 280         }
 281
 282         # local processing 1
 283         my $pcr;
 284         eval {
 285                 $pcr = Local::pcprot($self, $pcno, @field);
 286         };
 287 #       dbg('local', "Local::pcprot error $@") if $@;
 288         return if $pcr;
 289
 290  SWITCH: {
 291                 if ($pcno == 10) {              # incoming talk
 292
 293                         # will we allow it at all?
 294                         if ($censorpc) {
 295                                 my @bad;
 296                                 if (@bad = BadWords::check($field[3])) {
 297                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 298                                         return;
 299                                 }
 300                         }
 301
 302                         # is it for me or one of mine?
 303                         my ($to, $via, $call, $dxchan);
 304                         if ($field[5] gt ' ') {
 305                                 $call = $via = $field[2];
 306                                 $to = $field[5];
 307                         } else {
 308                                 $call = $to = $field[2];
 309                         }
 310                         $dxchan = DXChannel->get($call);
 311                         if ($dxchan && $dxchan->is_user) {
 312                                 $field[3] =~ s/\%5E/^/g;
 313                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 314                         } else {
 315                                 $self->route($field[2], $line); # relay it on its way
 316                         }
 317                         return;
 318                 }
 319
 320                 if ($pcno == 11 || $pcno == 26) { # dx spot
 321
 322                         # route 'foreign' pc26s
 323                         if ($pcno == 26) {
 324                                 if ($field[7] ne $main::mycall) {
 325                                         $self->route($field[7], $line);
 326                                         return;
 327                                 }
 328                         }
 329
 330                         # if this is a 'nodx' node then ignore it
 331                         if ($badnode->in($field[7])) {
 332                                 dbg('chan', "PCPROT: Bad Node, dropped");
 333                                 return;
 334                         }
 335
 336                         # if this is a 'bad spotter' user then ignore it
 337                         if ($badspotter->in($field[6])) {
 338                                 dbg('chan', "PCPROT: Bad Spotter, dropped");
 339                                 return;
 340                         }
 341
 342                         # convert the date to a unix date
 343                         my $d = cltounix($field[3], $field[4]);
 344                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 345                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 346                                 dbg('chan', "PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 347                                 return;
 348                         }
 349
 350                         # is it 'baddx'
 351                         if ($baddx->in($field[2])) {
 352                                 dbg('chan', "PCPROT: Bad DX spot, ignored");
 353                                 return;
 354                         }
 355
 356                         # do some de-duping
 357                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 358                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 359                         if ($field[2] =~ /BUST\w*$/) {
 360                                 dbg('chan', "PCPROT: useless 'BUSTED' spot");
 361                                 return;
 362                         }
 363                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 364                                 dbg('chan', "PCPROT: Duplicate Spot ignored\n");
 365                                 return;
 366                         }
 367                         if ($censorpc) {
 368                                 my @bad;
 369                                 if (@bad = BadWords::check($field[5])) {
 370                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 371                                         return;
 372                                 }
 373                         }
 374
 375                         my @spot = Spot::prepare($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 376                         # global spot filtering on INPUT
 377                         if ($self->{inspotsfilter}) {
 378                                 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
 379                                 unless ($filter) {
 380                                         dbg('chan', "PCPROT: Rejected by filter");
 381                                         return;
 382                                 }
 383                         }
 384
 385                         # add it
 386                         Spot::add(@spot);
 387
 388             #
 389                         # @spot at this point contains:-
 390             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 391                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 392                         # you should be able to route on any of these
 393             #
 394
 395                         # fix up qra locators of known users
 396                         my $user = DXUser->get_current($spot[4]);
 397                         if ($user) {
 398                                 my $qra = $user->qra;
 399                                 unless ($qra && DXBearing::is_qra($qra)) {
 400                                         my $lat = $user->lat;
 401                                         my $long = $user->long;
 402                                         if (defined $lat && defined $long) {
 403                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 404                                                 $user->put;
 405                                         }
 406                                 }
 407
 408                                 # send a remote command to a distant cluster if it is visible and there is no
 409                                 # qra locator and we havn't done it for a month.
 410
 411                                 unless ($user->qra) {
 412                                         my $node;
 413                                         my $to = $user->homenode;
 414                                         my $last = $user->lastoper || 0;
 415                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 416                                                 my $cmd = "forward/opernam $spot[4]";
 417                                                 # send the rcmd but we aren't interested in the replies...
 418                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 419                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 420                                                 } else {
 421                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 422                                                 }
 423                                                 if ($to ne $field[7]) {
 424                                                         $to = $field[7];
 425                                                         $node = DXCluster->get_exact($to);
 426                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 427                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 428                                                         } else {
 429                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 430                                                         }
 431                                                 }
 432                                                 $user->lastoper($main::systime);
 433                                                 $user->put;
 434                                         }
 435                                 }
 436                         }
 437
 438                         # local processing
 439                         my $r;
 440                         eval {
 441                                 $r = Local::spot($self, @spot);
 442                         };
 443 #                       dbg('local', "Local::spot1 error $@") if $@;
 444                         return if $r;
 445
 446                         # DON'T be silly and send on PC26s!
 447                         return if $pcno == 26;
 448
 449                         # send out the filtered spots
 450                         send_dx_spot($self, $line, @spot) if @spot;
 451                         return;
 452                 }
 453
 454                 if ($pcno == 12) {              # announces
 455                         # announce duplicate checking
 456                         $field[3] =~ s/^\s+//;  # remove leading blanks
 457                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 458                                 dbg('chan', "PCPROT: Duplicate Announce ignored");
 459                                 return;
 460                         }
 461
 462                         if ($censorpc) {
 463                                 my @bad;
 464                                 if (@bad = BadWords::check($field[3])) {
 465                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 466                                         return;
 467                                 }
 468                         }
 469
 470                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 471
 472                                 # global ann filtering on INPUT
 473                                 if ($self->{inannfilter}) {
 474                                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
 475                                         my @dxcc = Prefix::extract($field[1]);
 476                                         if (@dxcc > 0) {
 477                                                 $ann_dxcc = $dxcc[1]->dxcc;
 478                                                 $ann_itu = $dxcc[1]->itu;
 479                                                 $ann_cq = $dxcc[1]->cq();
 480                                         }
 481                                         @dxcc = Prefix::extract($field[5]);
 482                                         if (@dxcc > 0) {
 483                                                 $org_dxcc = $dxcc[1]->dxcc;
 484                                                 $org_itu = $dxcc[1]->itu;
 485                                                 $org_cq = $dxcc[1]->cq();
 486                                         }
 487                                         my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
 488                                                                                                         $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 489                                         unless ($filter) {
 490                                                 dbg('chan', "PCPROT: Rejected by filter");
 491                                                 return;
 492                                         }
 493                                 }
 494
 495                                 # send it
 496                                 $self->send_announce($line, @field[1..6]);
 497                         } else {
 498                                 $self->route($field[2], $line);
 499                         }
 500
 501                         return;
 502                 }
 503
 504                 if ($pcno == 13) {
 505                         last SWITCH;
 506                 }
 507                 if ($pcno == 14) {
 508                         last SWITCH;
 509                 }
 510                 if ($pcno == 15) {
 511                         last SWITCH;
 512                 }
 513
 514                 if ($pcno == 16) {              # add a user
 515                         my $node = DXCluster->get_exact($field[1]);
 516                         my $dxchan;
 517                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 518                                 # add it to the node table if it isn't present and it's
 519                                 # connected locally
 520                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 521                                 dbg('chan', "PCPROT: $field[1] no PC19 yet, autovivified as node");
 522 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 523
 524                         }
 525                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 526                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 527                                 return;
 528                         }
 529                         if ($field[2] eq $main::myalias && DXChannel->get($field[1])) {
 530                                 dbg('chan', "PCPROT: trying to connect sysop from outside!");
 531                                 return;
 532                         }
 533                         unless ($node) {
 534                                 dbg('chan', "PCPROT: Node $field[1] not in config");
 535                                 return;
 536                         }
 537                         unless ($node->isa('DXNode')) {
 538                                 dbg('chan', "PCPROT: $field[1] is not a node");
 539                                 return;
 540                         }
 541                         if ($node->dxchan != $self) {
 542                                 dbg('chan', "PCPROT: $field[1] came in on wrong channel");
 543                                 return;
 544                         }
 545                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 546                                 dbg('chan', "PCPROT: $field[1] connected locally");
 547                                 return;
 548                         }
 549                         my $i;
 550
 551                         for ($i = 2; $i < $#field; $i++) {
 552                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 553                                 next unless $call && $confmode && defined $here && is_callsign($call);
 554                                 my $ref = DXCluster->get_exact($call);
 555                                 if ($ref) {
 556                                         if ($ref->isa('DXNode')) {
 557                                                 dbg('chan', "PCPROT: $call is a node");
 558                                                 next;
 559                                         }
 560                                         my $rcall = $ref->mynode->call;
 561                                         dbg('chan', "PCPROT: already have $call on $rcall");
 562                                         next;
 563                                 }
 564
 565                                 $confmode = $confmode eq '*';
 566                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 567
 568                                 # add this station to the user database, if required
 569                                 $call =~ s/-\d+$//o;        # remove ssid for users
 570                                 my $user = DXUser->get_current($call);
 571                                 $user = DXUser->new($call) if !$user;
 572                                 $user->homenode($node->call) if !$user->homenode;
 573                                 $user->node($node->call);
 574                                 $user->lastin($main::systime) unless DXChannel->get($call);
 575                                 $user->put;
 576                         }
 577
 578                         # queue up any messages (look for privates only)
 579                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 580 #                       broadcast_route($line, $self, $field[1]);
 581 #                       return;
 582                         last SWITCH;
 583                 }
 584
 585                 if ($pcno == 17) {              # remove a user
 586                         my $node = DXCluster->get_exact($field[2]);
 587                         my $dxchan;
 588                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 589                                 # add it to the node table if it isn't present and it's
 590                                 # connected locally
 591                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 592                                 dbg('chan', "PCPROT: $field[2] no PC19 yet, autovivified as node");
 593 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 594                         }
 595                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 596                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 597                                 return;
 598                         }
 599                         if ($field[1] eq $main::myalias && DXChannel->get($field[1])) {
 600                                 dbg('chan', "PCPROT: trying to disconnect sysop from outside!");
 601                                 return;
 602                         }
 603                         unless ($node) {
 604                                 dbg('chan', "PCPROT: Node $field[2] not in config");
 605                                 return;
 606                         }
 607                         unless ($node->isa('DXNode')) {
 608                                 dbg('chan', "PCPROT: $field[2] is not a node");
 609                                 return;
 610                         }
 611                         if ($node->dxchan != $self) {
 612                                 dbg('chan', "PCPROT: $field[2] came in on wrong channel");
 613                                 return;
 614                         }
 615                         if ($dxchan = DXChannel->get($field[1])) {
 616                                 dbg('chan', "PCPROT: $field[1] connected locally");
 617                                 return;
 618                         }
 619                         my $ref = DXCluster->get_exact($field[1]);
 620                         if ($ref) {
 621                                 if ($ref->mynode != $node) {
 622                                         dbg('chan', "PCPROT: $field[1] came in from wrong node $field[2]");
 623                                         return;
 624                                 }
 625                                 $ref->del;
 626                         } else {
 627                                 dbg('chan', "PCPROT: $field[1] not known" );
 628                                 return;
 629                         }
 630 #                       broadcast_route($line, $self, $field[2]);
 631 #                       return;
 632                         last SWITCH;
 633                 }
 634
 635                 if ($pcno == 18) {              # link request
 636                         $self->state('init');
 637
 638                         # first clear out any nodes on this dxchannel
 639                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 640                         foreach my $node (@gonenodes) {
 641                                 next if $node->dxchan == $DXProt::me;
 642                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 643                                 $node->del();
 644                         }
 645                         $self->send_local_config();
 646                         $self->send(pc20());
 647                         return;             # we don't pass these on
 648                 }
 649
 650                 if ($pcno == 19) {              # incoming cluster list
 651                         my $i;
 652                         my $newline = "PC19^";
 653                         for ($i = 1; $i < $#field-1; $i += 4) {
 654                                 my $here = $field[$i];
 655                                 my $call = uc $field[$i+1];
 656                                 my $confmode = $field[$i+2];
 657                                 my $ver = $field[$i+3];
 658                                 next unless defined $here && defined $confmode && is_callsign($call);
 659
 660                                 $ver = 5400 if !$ver && $allowzero;
 661
 662                                 # now check the call over
 663                                 my $node = DXCluster->get_exact($call);
 664                                 if ($node) {
 665                                         my $dxchan;
 666                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 667                                                 dbg('chan', "PCPROT: $call connected locally");
 668                                         }
 669                                     if ($node->dxchan != $self) {
 670                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 671                                                 next;
 672                                         }
 673                                         my $rcall = $node->mynode->call;
 674                                         dbg('chan', "PCPROT: already have $call on $rcall");
 675                                         next;
 676                                 }
 677
 678                                 # check for sane parameters
 679                                 next if $ver < 5000; # only works with version 5 software
 680                                 next if length $call < 3; # min 3 letter callsigns
 681
 682                                 # add it to the nodes table and outgoing line
 683                                 $newline .= "$here^$call^$confmode^$ver^";
 684                                 DXNode->new($self, $call, $confmode, $here, $ver);
 685
 686                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 687                                 my $mref = DXMsg::get_busy($call);
 688                                 $mref->stop_msg($call) if $mref;
 689
 690                                 # add this station to the user database, if required (don't remove SSID from nodes)
 691                                 my $user = DXUser->get_current($call);
 692                                 if (!$user) {
 693                                         $user = DXUser->new($call);
 694                                         $user->sort('A');
 695                                         $user->priv(1);                   # I have relented and defaulted nodes
 696                                         $self->{priv} = 1;                # to user RCMDs allowed
 697                                         $user->homenode($call);
 698                                         $user->node($call);
 699                                 }
 700                                 $user->lastin($main::systime) unless DXChannel->get($call);
 701                                 $user->put;
 702                         }
 703
 704                         return if $newline eq "PC19^";
 705
 706                         # add hop count
 707                         $newline .=  get_hops(19) . "^";
 708                         $line = $newline;
 709                         last SWITCH;
 710                 }
 711
 712                 if ($pcno == 20) {              # send local configuration
 713                         $self->send_local_config();
 714                         $self->send(pc22());
 715                         $self->state('normal');
 716                         return;
 717                 }
 718
 719                 if ($pcno == 21) {              # delete a cluster from the list
 720                         my $call = uc $field[1];
 721                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 722                                 my $node = DXCluster->get_exact($call);
 723                                 if ($node) {
 724                                         unless ($node->isa('DXNode')) {
 725                                                 dbg('chan', "PCPROT: $call is not a node");
 726                                                 return;
 727                                         }
 728                                         if ($call eq $self->{call}) {
 729                                                 dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 730                                                 return;
 731                                         }
 732                                         if ($node->dxchan != $self) {
 733                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 734                                                 return;
 735                                         }
 736                                         my $dxchan;
 737                                         if ($dxchan = DXChannel->get($call)) {
 738                                                 dbg('chan', "PCPROT: $call connected locally");
 739                                                 return;
 740                                         }
 741                                         $node->del();
 742                                 } else {
 743                                         dbg('chan', "PCPROT: $call not in table, dropped");
 744                                         return;
 745                                 }
 746                         } else {
 747                                 dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
 748                                 return;
 749                         }
 750 #                       broadcast_route($line, $self, $call);
 751 #                       return;
 752                         last SWITCH;
 753                 }
 754
 755                 if ($pcno == 22) {
 756                         $self->state('normal');
 757                         return;
 758                 }
 759
 760                 if ($pcno == 23 || $pcno == 27) { # WWV info
 761
 762                         # route 'foreign' pc27s
 763                         if ($pcno == 27) {
 764                                 if ($field[8] ne $main::mycall) {
 765                                         $self->route($field[8], $line);
 766                                         return;
 767                                 }
 768                         }
 769
 770                         # do some de-duping
 771                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 772                         my $sfi = unpad($field[3]);
 773                         my $k = unpad($field[4]);
 774                         my $i = unpad($field[5]);
 775                         my ($r) = $field[6] =~ /R=(\d+)/;
 776                         $r = 0 unless $r;
 777                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 778                                 dbg('chan', "PCPROT: WWV Date ($field[1] $field[2]) out of range");
 779                                 return;
 780                         }
 781                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 782                                 dbg('chan', "PCPROT: Dup WWV Spot ignored\n");
 783                                 return;
 784                         }
 785                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 786
 787                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 788
 789                         my $rep;
 790                         eval {
 791                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 792                         };
 793 #                       dbg('local', "Local::wwv2 error $@") if $@;
 794                         return if $rep;
 795
 796                         # DON'T be silly and send on PC27s!
 797                         return if $pcno == 27;
 798
 799                         # broadcast to the eager world
 800                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 801                         return;
 802                 }
 803
 804                 if ($pcno == 24) {              # set here status
 805                         my $call = uc $field[1];
 806                         my $ref = DXCluster->get_exact($call);
 807                         $ref->here($field[2]) if $ref;
 808                         last SWITCH;
 809                 }
 810
 811                 if ($pcno == 25) {      # merge request
 812                         if ($field[1] ne $main::mycall) {
 813                                 $self->route($field[1], $line);
 814                                 return;
 815                         }
 816                         if ($field[2] eq $main::mycall) {
 817                                 dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 818                                 return;
 819                         }
 820
 821                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 822
 823                         # spots
 824                         if ($field[3] > 0) {
 825                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 826                                 my $in;
 827                                 foreach $in (@in) {
 828                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 829                                 }
 830                         }
 831
 832                         # wwv
 833                         if ($field[4] > 0) {
 834                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 835                                 my $in;
 836                                 foreach $in (@in) {
 837                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 838                                 }
 839                         }
 840                         return;
 841                 }
 842
 843                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 844                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 845                                 DXMsg::process($self, $line);
 846                         } else {
 847                                 $self->route($field[1], $line) unless $self->is_clx;
 848                         }
 849                         return;
 850                 }
 851
 852                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 853                         if ($field[1] eq $main::mycall) {
 854                                 my $ref = DXUser->get_current($field[2]);
 855                                 my $cref = DXCluster->get($field[2]);
 856                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 857                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 858                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 859                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 860                                                 my $oldpriv = $self->{priv};
 861                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 862                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 863                                                 $self->{priv} = $oldpriv;
 864                                                 for (@in) {
 865                                                         s/\s*$//og;
 866                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 867                                                         Log('rcmd', 'out', $field[2], $_);
 868                                                 }
 869                                                 delete $self->{remotecmd};
 870                                         } else {
 871                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 872                                         }
 873                                 } else {
 874                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 875                                 }
 876                         } else {
 877                                 my $ref = DXUser->get_current($field[1]);
 878                                 if ($ref && $ref->is_clx) {
 879                                         $self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 880                                 } else {
 881                                         $self->route($field[1], $line);
 882                                 }
 883                         }
 884                         return;
 885                 }
 886
 887                 if ($pcno == 35) {              # remote command replies
 888                         if ($field[1] eq $main::mycall) {
 889                                 my $s = $rcmds{$field[2]};
 890                                 if ($s) {
 891                                         my $dxchan = DXChannel->get($s->{call});
 892                                         $dxchan->send($field[3]) if $dxchan;
 893                                         delete $rcmds{$field[2]} if !$dxchan;
 894                                 } else {
 895                                         # send unsolicited ones to the sysop
 896                                         my $dxchan = DXChannel->get($main::myalias);
 897                                         $dxchan->send($field[3]) if $dxchan;
 898                                 }
 899                         } else {
 900                                 my $ref = DXUser->get_current($field[1]);
 901                                 if ($ref && $ref->is_clx) {
 902                                         $self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 903                                 } else {
 904                                         $self->route($field[1], $line);
 905                                 }
 906                         }
 907                         return;
 908                 }
 909
 910                 # for pc 37 see 44 onwards
 911
 912                 if ($pcno == 38) {              # node connected list from neighbour
 913                         return;
 914                 }
 915
 916                 if ($pcno == 39) {              # incoming disconnect
 917                         if ($field[1] eq $self->{call}) {
 918                                 $self->disconnect(1);
 919                         } else {
 920                                 dbg('chan', "PCPROT: came in on wrong channel");
 921                         }
 922                         return;
 923                 }
 924
 925                 if ($pcno == 41) {              # user info
 926                         # add this station to the user database, if required
 927                         my $user = DXUser->get_current($field[1]);
 928                         $user = DXUser->new($field[1]) if !$user;
 929
 930                         if ($field[2] == 1) {
 931                                 $user->name($field[3]);
 932                         } elsif ($field[2] == 2) {
 933                                 $user->qth($field[3]);
 934                         } elsif ($field[2] == 3) {
 935                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 936                                 $user->lat($lat);
 937                                 $user->long($long);
 938                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 939                         } elsif ($field[2] == 4) {
 940                                 $user->homenode($field[3]);
 941                         }
 942                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 943                         $user->put;
 944                         last SWITCH;
 945                 }
 946                 if ($pcno == 43) {
 947                         last SWITCH;
 948                 }
 949                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 950                         DXDb::process($self, $line);
 951                         return;
 952                 }
 953
 954                 if ($pcno == 50) {              # keep alive/user list
 955                         my $node = DXCluster->get_exact($field[1]);
 956                         if ($node) {
 957                                 return unless $node->isa('DXNode');
 958                                 return unless $node->dxchan == $self;
 959                                 $node->update_users($field[2]);
 960                         }
 961                         last SWITCH;
 962                 }
 963
 964                 if ($pcno == 51) {              # incoming ping requests/answers
 965
 966                         # is it for us?
 967                         if ($field[1] eq $main::mycall) {
 968                                 my $flag = $field[3];
 969                                 if ($flag == 1) {
 970                                         $self->send(pc51($field[2], $field[1], '0'));
 971                                 } else {
 972                                         # it's a reply, look in the ping list for this one
 973                                         my $ref = $pings{$field[2]};
 974                                         if ($ref) {
 975                                                 my $tochan =  DXChannel->get($field[2]);
 976                                                 while (@$ref) {
 977                                                         my $r = shift @$ref;
 978                                                         my $dxchan = DXChannel->get($r->{call});
 979                                                         next unless $dxchan;
 980                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 981                                                         if ($dxchan->is_user) {
 982                                                                 my $s = sprintf "%.2f", $t;
 983                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 984                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 985                                                         } elsif ($dxchan->is_node) {
 986                                                                 if ($tochan) {
 987                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
 988                                                                         push @{$tochan->{pingtime}}, $t;
 989                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 990                                                                         my $st;
 991                                                                         for (@{$tochan->{pingtime}}) {
 992                                                                                 $st += $_;
 993                                                                         }
 994                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 995                                                                 }
 996                                                         }
 997                                                 }
 998                                         }
 999                                 }
1000                         } else {
1001                                 # route down an appropriate thingy
1002                                 $self->route($field[1], $line);
1003                         }
1004                         return;
1005                 }
1006
1007                 if ($pcno == 75) {              # dunno but route it
1008                         if ($field[1] ne $main::mycall) {
1009                                 $self->route($field[1], $line);
1010                         }
1011                         return;
1012                 }
1013
1014                 if ($pcno == 73) {  # WCY broadcasts
1015
1016                         # do some de-duping
1017                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
1018                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
1019                                 dbg('chan', "PCPROT: WCY Date ($field[1] $field[2]) out of range");
1020                                 return;
1021                         }
1022                         @field = map { unpad($_) } @field;
1023                         if (WCY::dup($d,@field[3..7])) {
1024                                 dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
1025                                 return;
1026                         }
1027
1028                         my $wcy = WCY::update($d, @field[2..12]);
1029
1030                         my $rep;
1031                         eval {
1032                                 $rep = Local::wwv($self, @field[1..12]);
1033                         };
1034                         # dbg('local', "Local::wcy error $@") if $@;
1035                         return if $rep;
1036
1037                         # broadcast to the eager world
1038                         send_wcy_spot($self, $line, $d, @field[2..12]);
1039                         return;
1040                 }
1041
1042                 if ($pcno == 84) { # remote commands (incoming)
1043                         if ($field[1] eq $main::mycall) {
1044                                 my $ref = DXUser->get_current($field[2]);
1045                                 my $cref = DXCluster->get($field[2]);
1046                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1047                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1048                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1049                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1050                                                 my $oldpriv = $self->{priv};
1051                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1052                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1053                                                 $self->{priv} = $oldpriv;
1054                                                 for (@in) {
1055                                                         s/\s*$//og;
1056                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1057                                                         Log('rcmd', 'out', $field[2], $_);
1058                                                 }
1059                                                 delete $self->{remotecmd};
1060                                         } else {
1061                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1062                                         }
1063                                 } else {
1064                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1065                                 }
1066                         } else {
1067                                 my $ref = DXUser->get_current($field[1]);
1068                                 if ($ref && $ref->is_clx) {
1069                                         $self->route($field[1], $line);
1070                                 } else {
1071                                         $self->route($field[1], pc34($field[2], $field[1], $field[4]));
1072                                 }
1073                         }
1074                         return;
1075                 }
1076
1077                 if ($pcno == 85) {              # remote command replies
1078                         if ($field[1] eq $main::mycall) {
1079                                 my $dxchan = DXChannel->get($field[3]);
1080                                 if ($dxchan) {
1081                                         $dxchan->send($field[4]);
1082                                 } else {
1083                                         my $s = $rcmds{$field[2]};
1084                                         if ($s) {
1085                                                 $dxchan = DXChannel->get($s->{call});
1086                                                 $dxchan->send($field[4]) if $dxchan;
1087                                                 delete $rcmds{$field[2]} if !$dxchan;
1088                                         } else {
1089                                                 # send unsolicited ones to the sysop
1090                                                 my $dxchan = DXChannel->get($main::myalias);
1091                                                 $dxchan->send($field[4]) if $dxchan;
1092                                         }
1093                                 }
1094                         } else {
1095                                 my $ref = DXUser->get_current($field[1]);
1096                                 if ($ref && $ref->is_clx) {
1097                                         $self->route($field[1], $line);
1098                                 } else {
1099                                         $self->route($field[1], pc35($field[2], $field[1], $field[4]));
1100                                 }
1101                         }
1102                         return;
1103                 }
1104         }
1105
1106         # if get here then rebroadcast the thing with its Hop count decremented (if
1107         # there is one). If it has a hop count and it decrements to zero then don't
1108         # rebroadcast it.
1109         #
1110         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1111         #        REBROADCAST!!!!
1112         #
1113
1114         unless ($self->{isolate}) {
1115                 broadcast_ak1a($line, $self); # send it to everyone but me
1116         }
1117 }
1118
1119 #
1120 # This is called from inside the main cluster processing loop and is used
1121 # for despatching commands that are doing some long processing job
1122 #
1123 sub process
1124 {
1125         my $t = time;
1126         my @dxchan = DXChannel->get_all();
1127         my $dxchan;
1128
1129         foreach $dxchan (@dxchan) {
1130                 next unless $dxchan->is_node();
1131                 next if $dxchan == $me;
1132
1133                 # send a pc50 out on this channel
1134                 $dxchan->{pc50_t} = $main::systime unless exists $dxchan->{pc50_t};
1135                 if ($t >= $dxchan->{pc50_t} + $DXProt::pc50_interval) {
1136                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1137                         $dxchan->{pc50_t} = $t;
1138                 }
1139
1140                 # send a ping out on this channel
1141                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1142                         if ($dxchan->{nopings} <= 0) {
1143                                 $dxchan->disconnect;
1144                         } else {
1145                                 addping($main::mycall, $dxchan->call);
1146                                 $dxchan->{nopings} -= 1;
1147                                 $dxchan->{lastping} = $t;
1148                         }
1149                 }
1150         }
1151
1152         my $key;
1153         my $val;
1154         my $cutoff;
1155         if ($main::systime - 3600 > $last_hour) {
1156 #               Spot::process;
1157 #               Geomag::process;
1158 #               AnnTalk::process;
1159                 $last_hour = $main::systime;
1160         }
1161 }
1162
1163 #
1164 # finish up a pc context
1165 #
1166
1167 #
1168 # some active measures
1169 #
1170 sub send_route
1171 {
1172         my $self = shift;
1173         my $line = shift;
1174         my @dxchan = DXChannel::get_all_nodes();
1175         my $dxchan;
1176
1177         # send it if it isn't the except list and isn't isolated and still has a hop count
1178         # taking into account filtering and so on
1179         foreach $dxchan (@dxchan) {
1180                 my $routeit;
1181                 my ($filter, $hops);
1182
1183                 if ($dxchan->{routefilter}) {
1184                         ($filter, $hops) = $dxchan->{routefilter}->it($self->{call}, @_);
1185                          next unless $filter;
1186                 }
1187                 next if $dxchan == $self;
1188                 if ($hops) {
1189                         $routeit = $line;
1190                         $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1191                 } else {
1192                         $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1193                         next unless $routeit;
1194                 }
1195                 if ($filter) {
1196                         $dxchan->send($routeit) if $routeit;
1197                 } else {
1198                         $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1199                 }
1200         }
1201 }
1202
1203 sub send_dx_spot
1204 {
1205         my $self = shift;
1206         my $line = shift;
1207         my @dxchan = DXChannel->get_all();
1208         my $dxchan;
1209
1210         # send it if it isn't the except list and isn't isolated and still has a hop count
1211         # taking into account filtering and so on
1212         foreach $dxchan (@dxchan) {
1213                 my $routeit;
1214                 my ($filter, $hops);
1215
1216                 if ($dxchan->{spotsfilter}) {
1217                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1218                         next unless $filter;
1219                 }
1220
1221                 if ($dxchan->is_node) {
1222                         next if $dxchan == $self;
1223                         if ($hops) {
1224                                 $routeit = $line;
1225                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1226                         } else {
1227                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1228                                 next unless $routeit;
1229                         }
1230                         if ($filter) {
1231                                 $dxchan->send($routeit) if $routeit;
1232                         } else {
1233                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1234                         }
1235                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1236                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1237                         $buf .= "\a\a" if $dxchan->{beep};
1238                         $buf =~ s/\%5E/^/g;
1239                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1240                                 $dxchan->send($buf);
1241                         } else {
1242                                 $dxchan->delay($buf);
1243                         }
1244                 }
1245         }
1246 }
1247
1248 sub send_wwv_spot
1249 {
1250         my $self = shift;
1251         my $line = shift;
1252         my @dxchan = DXChannel->get_all();
1253         my $dxchan;
1254         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1255         my @dxcc = Prefix::extract($_[7]);
1256         if (@dxcc > 0) {
1257                 $wwv_dxcc = $dxcc[1]->dxcc;
1258                 $wwv_itu = $dxcc[1]->itu;
1259                 $wwv_cq = $dxcc[1]->cq;
1260         }
1261         @dxcc = Prefix::extract($_[8]);
1262         if (@dxcc > 0) {
1263                 $org_dxcc = $dxcc[1]->dxcc;
1264                 $org_itu = $dxcc[1]->itu;
1265                 $org_cq = $dxcc[1]->cq;
1266         }
1267
1268         # send it if it isn't the except list and isn't isolated and still has a hop count
1269         # taking into account filtering and so on
1270         foreach $dxchan (@dxchan) {
1271                 my $routeit;
1272                 my ($filter, $hops);
1273
1274                 if ($dxchan->{wwvfilter}) {
1275                         ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1276                          next unless $filter;
1277                 }
1278                 if ($dxchan->is_node) {
1279                         next if $dxchan == $self;
1280                         if ($hops) {
1281                                 $routeit = $line;
1282                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1283                         } else {
1284                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1285                                 next unless $routeit;
1286                         }
1287                         if ($filter) {
1288                                 $dxchan->send($routeit) if $routeit;
1289                         } else {
1290                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1291
1292                         }
1293                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1294                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1295                         $buf .= "\a\a" if $dxchan->{beep};
1296                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1297                                 $dxchan->send($buf);
1298                         } else {
1299                                 $dxchan->delay($buf);
1300                         }
1301                 }
1302         }
1303 }
1304
1305 sub send_wcy_spot
1306 {
1307         my $self = shift;
1308         my $line = shift;
1309         my @dxchan = DXChannel->get_all();
1310         my $dxchan;
1311         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1312         my @dxcc = Prefix::extract($_[11]);
1313         if (@dxcc > 0) {
1314                 $wcy_dxcc = $dxcc[1]->dxcc;
1315                 $wcy_itu = $dxcc[1]->itu;
1316                 $wcy_cq = $dxcc[1]->cq;
1317         }
1318         @dxcc = Prefix::extract($_[12]);
1319         if (@dxcc > 0) {
1320                 $org_dxcc = $dxcc[1]->dxcc;
1321                 $org_itu = $dxcc[1]->itu;
1322                 $org_cq = $dxcc[1]->cq;
1323         }
1324
1325         # send it if it isn't the except list and isn't isolated and still has a hop count
1326         # taking into account filtering and so on
1327         foreach $dxchan (@dxchan) {
1328                 my $routeit;
1329                 my ($filter, $hops);
1330
1331                 if ($dxchan->{wcyfilter}) {
1332                         ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1333                          next unless $filter;
1334                 }
1335                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1336                         next if $dxchan == $self;
1337                         if ($hops) {
1338                                 $routeit = $line;
1339                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1340                         } else {
1341                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1342                                 next unless $routeit;
1343                         }
1344                         if ($filter) {
1345                                 $dxchan->send($routeit) if $routeit;
1346                         } else {
1347                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1348                         }
1349                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1350                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1351                         $buf .= "\a\a" if $dxchan->{beep};
1352                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1353                                 $dxchan->send($buf);
1354                         } else {
1355                                 $dxchan->delay($buf);
1356                         }
1357                 }
1358         }
1359 }
1360
1361 # send an announce
1362 sub send_announce
1363 {
1364         my $self = shift;
1365         my $line = shift;
1366         my @dxchan = DXChannel->get_all();
1367         my $dxchan;
1368         my $text = unpad($_[2]);
1369         my $target;
1370         my $to = 'To ';
1371
1372         if ($_[3] eq '*') {     # sysops
1373                 $target = "SYSOP";
1374         } elsif ($_[3] gt ' ') { # speciality list handling
1375                 my ($name) = split /\./, $_[3];
1376                 $target = "$name"; # put the rest in later (if bothered)
1377         }
1378
1379         if ($_[5] eq '1') {
1380                 $target = "WX";
1381                 $to = '';
1382         }
1383         $target = "ALL" if !$target;
1384
1385         Log('ann', $target, $_[0], $text);
1386
1387         # obtain country codes etc
1388         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1389         my @dxcc = Prefix::extract($_[0]);
1390         if (@dxcc > 0) {
1391                 $ann_dxcc = $dxcc[1]->dxcc;
1392                 $ann_itu = $dxcc[1]->itu;
1393                 $ann_cq = $dxcc[1]->cq;
1394         }
1395         @dxcc = Prefix::extract($_[4]);
1396         if (@dxcc > 0) {
1397                 $org_dxcc = $dxcc[1]->dxcc;
1398                 $org_itu = $dxcc[1]->itu;
1399                 $org_cq = $dxcc[1]->cq;
1400         }
1401
1402         # send it if it isn't the except list and isn't isolated and still has a hop count
1403         # taking into account filtering and so on
1404         foreach $dxchan (@dxchan) {
1405                 my $routeit;
1406                 my ($filter, $hops);
1407
1408                 if ($dxchan->{annfilter}) {
1409                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1410                         next unless $filter;
1411                 }
1412                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1413                         next if $dxchan == $self;
1414                         if ($hops) {
1415                                 $routeit = $line;
1416                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1417                         } else {
1418                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1419                                 next unless $routeit;
1420                         }
1421                         if ($filter) {
1422                                 $dxchan->send($routeit) if $routeit;
1423                         } else {
1424                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1425
1426                         }
1427                 } elsif ($dxchan->is_user) {
1428                         unless ($dxchan->{ann}) {
1429                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1430                         }
1431                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1432                         my $buf = "$to$target de $_[0]: $text";
1433                         $buf =~ s/\%5E/^/g;
1434                         $buf .= "\a\a" if $dxchan->{beep};
1435                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1436                                 $dxchan->send($buf);
1437                         } else {
1438                                 $dxchan->delay($buf);
1439                         }
1440                 }
1441         }
1442 }
1443
1444 sub send_local_config
1445 {
1446         my $self = shift;
1447         my $n;
1448         my @nodes;
1449         my @localnodes;
1450         my @remotenodes;
1451
1452         # send our nodes
1453         if ($self->{isolate}) {
1454                 @localnodes = (DXCluster->get_exact($main::mycall));
1455         } else {
1456                 # create a list of all the nodes that are not connected to this connection
1457                 # and are not themselves isolated, this to make sure that isolated nodes
1458         # don't appear outside of this node
1459                 @nodes = DXNode::get_all();
1460                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1461                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1462                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1463                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1464                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1465                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1466         }
1467
1468         my @s = $me->pc19(@localnodes, @remotenodes);
1469         for (@s) {
1470                 my $routeit = adjust_hops($self, $_);
1471                 $self->send($routeit) if $routeit;
1472         }
1473
1474         # get all the users connected on the above nodes and send them out
1475         foreach $n (@localnodes, @remotenodes) {
1476                 my @users = values %{$n->list};
1477                 my @s = pc16($n, @users);
1478                 for (@s) {
1479                         my $routeit = adjust_hops($self, $_);
1480                         $self->send($routeit) if $routeit;
1481                 }
1482         }
1483 }
1484
1485 #
1486 # route a message down an appropriate interface for a callsign
1487 #
1488 # is called route(to, pcline);
1489 #
1490 sub route
1491 {
1492         my ($self, $call, $line) = @_;
1493
1494         if (ref $self && $call eq $self->{call}) {
1495                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1496                 return;
1497         }
1498
1499         # always send it down the local interface if available
1500         my $dxchan = DXChannel->get($call);
1501         unless ($dxchan) {
1502                 my $cl = DXCluster->get_exact($call);
1503                 $dxchan = $cl->dxchan if $cl;
1504                 if (ref $dxchan) {
1505                         if (ref $self && $dxchan eq $self) {
1506                                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1507                                 return;
1508                         }
1509                 }
1510         }
1511         if ($dxchan) {
1512                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1513                 if ($routeit) {
1514                         $dxchan->send($routeit);
1515                 }
1516         } else {
1517                 dbg('chan', "PCPROT: No route available, dropped");
1518         }
1519 }
1520
1521 # broadcast a message to all clusters taking into account isolation
1522 # [except those mentioned after buffer]
1523 sub broadcast_ak1a
1524 {
1525         my $s = shift;                          # the line to be rebroadcast
1526         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1527         my @dxchan = DXChannel::get_all_nodes();
1528         my $dxchan;
1529
1530         # send it if it isn't the except list and isn't isolated and still has a hop count
1531         foreach $dxchan (@dxchan) {
1532                 next if grep $dxchan == $_, @except;
1533                 next if $dxchan == $me;
1534
1535                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1536                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1537         }
1538 }
1539
1540 # broadcast a message to all clusters ignoring isolation
1541 # [except those mentioned after buffer]
1542 sub broadcast_all_ak1a
1543 {
1544         my $s = shift;                          # the line to be rebroadcast
1545         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1546         my @dxchan = DXChannel::get_all_nodes();
1547         my $dxchan;
1548
1549         # send it if it isn't the except list and isn't isolated and still has a hop count
1550         foreach $dxchan (@dxchan) {
1551                 next if grep $dxchan == $_, @except;
1552                 next if $dxchan == $me;
1553
1554                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1555                 $dxchan->send($routeit);
1556         }
1557 }
1558
1559 # broadcast to all users
1560 # storing the spot or whatever until it is in a state to receive it
1561 sub broadcast_users
1562 {
1563         my $s = shift;                          # the line to be rebroadcast
1564         my $sort = shift;           # the type of transmission
1565         my $fref = shift;           # a reference to an object to filter on
1566         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1567         my @dxchan = DXChannel::get_all_users();
1568         my $dxchan;
1569         my @out;
1570
1571         foreach $dxchan (@dxchan) {
1572                 next if grep $dxchan == $_, @except;
1573                 push @out, $dxchan;
1574         }
1575         broadcast_list($s, $sort, $fref, @out);
1576 }
1577
1578 # broadcast to a list of users
1579 sub broadcast_list
1580 {
1581         my $s = shift;
1582         my $sort = shift;
1583         my $fref = shift;
1584         my $dxchan;
1585
1586         foreach $dxchan (@_) {
1587                 my $filter = 1;
1588                 next if $dxchan == $me;
1589
1590                 if ($sort eq 'dx') {
1591                     next unless $dxchan->{dx};
1592                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1593                         next unless $filter;
1594                 }
1595                 next if $sort eq 'ann' && !$dxchan->{ann};
1596                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1597                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1598                 next if $sort eq 'wx' && !$dxchan->{wx};
1599
1600                 $s =~ s/\a//og unless $dxchan->{beep};
1601
1602                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1603                         $dxchan->send($s);
1604                 } else {
1605                         $dxchan->delay($s);
1606                 }
1607         }
1608 }
1609
1610
1611 #
1612 # obtain the hops from the list for this callsign and pc no
1613 #
1614
1615 sub get_hops
1616 {
1617         my $pcno = shift;
1618         my $hops = $DXProt::hopcount{$pcno};
1619         $hops = $DXProt::def_hopcount if !$hops;
1620         return "H$hops";
1621 }
1622
1623 #
1624 # adjust the hop count on a per node basis using the user loadable
1625 # hop table if available or else decrement an existing one
1626 #
1627
1628 sub adjust_hops
1629 {
1630         my $self = shift;
1631         my $s = shift;
1632         my $call = $self->{call};
1633         my $hops;
1634
1635         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1636                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1637                 confess "$call called adjust_hops with '$s'" unless $pcno;
1638                 my $ref = $nodehops{$call} if %nodehops;
1639                 if ($ref) {
1640                         my $newhops = $ref->{$pcno};
1641                         return "" if defined $newhops && $newhops == 0;
1642                         $newhops = $ref->{default} unless $newhops;
1643                         return "" if defined $newhops && $newhops == 0;
1644                         $newhops = $hops if !$newhops;
1645                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1646                 } else {
1647                         # simply decrement it
1648                         $hops--;
1649                         return "" if !$hops;
1650                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1651                 }
1652         }
1653         return $s;
1654 }
1655
1656 #
1657 # load hop tables
1658 #
1659 sub load_hops
1660 {
1661         my $self = shift;
1662         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1663         do "$main::data/hop_table.pl";
1664         return $@ if $@;
1665         return 0;
1666 }
1667
1668
1669 # add a ping request to the ping queues
1670 sub addping
1671 {
1672         my ($from, $to) = @_;
1673         my $ref = $pings{$to} || [];
1674         my $r = {};
1675         $r->{call} = $from;
1676         $r->{t} = [ gettimeofday ];
1677         route(undef, $to, pc51($to, $main::mycall, 1));
1678         push @$ref, $r;
1679         $pings{$to} = $ref;
1680 }
1681
1682 # add a rcmd request to the rcmd queues
1683 sub addrcmd
1684 {
1685         my ($self, $to, $cmd) = @_;
1686
1687         my $r = {};
1688         $r->{call} = $self->{call};
1689         $r->{t} = $main::systime;
1690         $r->{cmd} = $cmd;
1691         $rcmds{$to} = $r;
1692
1693         my $ref = DXCluster->get_exact($to);
1694     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1695                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1696         } else {
1697                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1698         }
1699 }
1700
1701 sub disconnect
1702 {
1703         my $self = shift;
1704         my $pc39flag = shift;
1705         my $call = $self->call;
1706
1707         unless ($pc39flag && $pc39flag == 1) {
1708                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1709         }
1710
1711         # unbusy and stop and outgoing mail
1712         my $mref = DXMsg::get_busy($call);
1713         $mref->stop_msg($call) if $mref;
1714
1715         # create a list of all the nodes that have gone and delete them from the table
1716         my @nodes;
1717         foreach my $node (grep { $_->dxchancall eq $call } DXNode::get_all) {
1718                 next if $node->call eq $call;
1719                 next if $node->call eq $main::mycall;
1720                 push @nodes, $node->call;
1721                 $node->del;
1722         }
1723
1724         # broadcast to all other nodes that all the nodes connected to via me are gone
1725         unless ($pc39flag && $pc39flag == 2) {
1726                 unless ($self->{isolate}) {
1727                         push @nodes, $call;
1728                         for (@nodes) {
1729                                 broadcast_ak1a(pc21($_, 'Gone.'), $self);
1730                         }
1731                 }
1732         }
1733
1734         # remove this node from the tables
1735         my $node = DXCluster->get_exact($call);
1736         $node->del if $node;
1737
1738         # remove outstanding pings
1739         delete $pings{$call};
1740
1741         # I was the last node visited
1742     $self->user->node($main::mycall);
1743
1744         # send info to all logged in thingies
1745         $self->tell_login('logoutn');
1746
1747         Log('DXProt', $call . " Disconnected");
1748
1749         $self->SUPER::disconnect;
1750 }
1751
1752
1753 #
1754 # send a talk message to this thingy
1755 #
1756 sub talk
1757 {
1758         my ($self, $from, $to, $via, $line) = @_;
1759
1760         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1761         $self->send(DXProt::pc10($from, $to, $via, $line));
1762         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1763 }
1764 1;
1765 __END__