perl/DXProt.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the protocal mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 package DXProt;
  11
  12 @ISA = qw(DXChannel);
  13
  14 use DXUtil;
  15 use DXChannel;
  16 use DXUser;
  17 use DXM;
  18 use DXCluster;
  19 use DXProtVars;
  20 use DXCommandmode;
  21 use DXLog;
  22 use Spot;
  23 use DXProtout;
  24 use DXDebug;
  25 use Filter;
  26 use Local;
  27 use DXDb;
  28 use AnnTalk;
  29 use Geomag;
  30 use WCY;
  31 use Time::HiRes qw(gettimeofday tv_interval);
  32 use BadWords;
  33 use DXHash;
  34
  35 use strict;
  36 use vars qw($me $pc11_max_age $pc23_max_age
  37                         $last_hour %pings %rcmds
  38                         %nodehops $baddx $badspotter $badnode $censorpc
  39                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  40
  41 $me = undef;                                    # the channel id for this cluster
  42 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  43 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  44
  45 $last_hour = time;                              # last time I did an hourly periodic update
  46 %pings = ();                    # outstanding ping requests outbound
  47 %rcmds = ();                    # outstanding rcmd requests outbound
  48 %nodehops = ();                 # node specific hop control
  49 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  50                                                                 # loads of 'bad things'
  51 $baddx = new DXHash "baddx";
  52 $badspotter = new DXHash "badspotter";
  53 $badnode = new DXHash "badnode";
  54
  55 @checklist =
  56 (
  57  [ qw(c c m bp bc c) ],                 # pc10
  58  [ qw(f m d t m c c h) ],               # pc11
  59  [ qw(c bc m bp bm p h) ],              # pc12
  60  [ qw(c h) ],                                   #
  61  [ qw(c h) ],                                   #
  62  [ qw(c m h) ],                                 #
  63  undef ,                                                # pc16 has to be validated manually
  64  [ qw(c c h) ],                                 # pc17
  65  [ qw(m n) ],                                   # pc18
  66  undef ,                                                # pc19 has to be validated manually
  67  undef ,                                                # pc20 no validation
  68  [ qw(c m h) ],                                 # pc21
  69  undef ,                                                # pc22 no validation
  70  [ qw(d n n n n m c c h) ],             # pc23
  71  [ qw(c p h) ],                                 # pc24
  72  [ qw(c c n n) ],                               # pc25
  73  [ qw(f m d t m c c bc) ],              # pc26
  74  [ qw(d n n n n m c c bc) ],    # pc27
  75  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  76  [ qw(c c n m) ],                               # pc29
  77  [ qw(c c n) ],                                 # pc30
  78  [ qw(c c n) ],                                 # pc31
  79  [ qw(c c n) ],                                 # pc32
  80  [ qw(c c n) ],                                 # pc33
  81  [ qw(c c m) ],                                 # pc34
  82  [ qw(c c m) ],                                 # pc35
  83  [ qw(c c m) ],                                 # pc36
  84  [ qw(c c n m) ],                               # pc37
  85  undef,                                                 # pc38 not interested
  86  [ qw(c m) ],                                   # pc39
  87  [ qw(c c m p n) ],                             # pc40
  88  [ qw(c n m h) ],                               # pc41
  89  [ qw(c c n) ],                                 # pc42
  90  undef,                                                 # pc43 don't handle it
  91  [ qw(c c n m m c) ],                   # pc44
  92  [ qw(c c n m) ],                               # pc45
  93  [ qw(c c n) ],                                 # pc46
  94  undef,                                                 # pc47
  95  undef,                                                 # pc48
  96  [ qw(c m h) ],                                 # pc49
  97  [ qw(c n h) ],                                 # pc50
  98  [ qw(c c n) ],                                 # pc51
  99  undef,
 100  undef,
 101  undef,
 102  undef,
 103  undef,
 104  undef,
 105  undef,
 106  undef,
 107  undef,                                                 # pc60
 108  undef,
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,
 115  undef,
 116  undef,
 117  undef,                                                 # pc70
 118  undef,
 119  undef,
 120  [ qw(d n n n n n n m m m c c h) ],     # pc73
 121  undef,
 122  undef,
 123  undef,
 124  undef,
 125  undef,
 126  undef,
 127  undef,                                                 # pc80
 128  undef,
 129  undef,
 130  undef,
 131  [ qw(c c c m) ],                               # pc84
 132  [ qw(c c c m) ],                               # pc85
 133 );
 134
 135 # use the entry in the check list to check the field list presented
 136 # return OK if line NOT in check list (for now)
 137 sub check
 138 {
 139         my $n = shift;
 140         $n -= 10;
 141         return 0 if $n < 0 || $n > @checklist;
 142         my $ref = $checklist[$n];
 143         return 0 unless ref $ref;
 144
 145         my $i;
 146         shift;    # not interested in the first field
 147         for ($i = 0; $i < @$ref; $i++) {
 148                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 149                 return 0 unless $act;
 150                 next if $blank && $_[$i] =~ /^[ \*]$/;
 151                 if ($act eq 'c') {
 152                         return $i+1 unless is_callsign($_[$i]);
 153                 } elsif ($act eq 'm') {
 154                         return $i+1 unless is_pctext($_[$i]);
 155                 } elsif ($act eq 'p') {
 156                         return $i+1 unless is_pcflag($_[$i]);
 157                 } elsif ($act eq 'f') {
 158                         return $i+1 unless is_freq($_[$i]);
 159                 } elsif ($act eq 'n') {
 160                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 161                 } elsif ($act eq 'h') {
 162                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 163                 } elsif ($act eq 'd') {
 164                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 165                 } elsif ($act eq 't') {
 166                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 167                 }
 168         }
 169         return 0;
 170 }
 171
 172 sub init
 173 {
 174         my $user = DXUser->get($main::mycall);
 175         $DXProt::myprot_version += $main::version*100;
 176         $me = DXProt->new($main::mycall, 0, $user);
 177         $me->{here} = 1;
 178         $me->{state} = "indifferent";
 179         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 180         confess $@ if $@;
 181         $me->{sort} = 'S';    # S for spider
 182 }
 183
 184 #
 185 # obtain a new connection this is derived from dxchannel
 186 #
 187
 188 sub new
 189 {
 190         my $self = DXChannel::alloc(@_);
 191         return $self;
 192 }
 193
 194 # this is how a pc connection starts (for an incoming connection)
 195 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 196 # all the crap that comes between).
 197 sub start
 198 {
 199         my ($self, $line, $sort) = @_;
 200         my $call = $self->{call};
 201         my $user = $self->{user};
 202
 203         # remember type of connection
 204         $self->{consort} = $line;
 205         $self->{outbound} = $sort eq 'O';
 206         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 207         $self->{lang} = $user->lang || 'en';
 208         $self->{isolate} = $user->{isolate};
 209         $self->{consort} = $line;       # save the connection type
 210         $self->{here} = 1;
 211
 212         # get the output filters
 213         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 214         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 215         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 216         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 217
 218
 219         # get the INPUT filters (these only pertain to Clusters)
 220         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 221         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 222         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 223         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 224
 225         # set unbuffered and no echo
 226         $self->send_now('B',"0");
 227         $self->send_now('E',"0");
 228
 229         # ping neighbour node stuff
 230         my $ping = $user->pingint;
 231         $ping = 5*60 unless defined $ping;
 232         $self->{pingint} = $ping;
 233         $self->{nopings} = $user->nopings || 2;
 234         $self->{pingtime} = [ ];
 235         $self->{pingave} = 0;
 236
 237         # send initialisation string
 238         unless ($self->{outbound}) {
 239 #               $self->send(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                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 361                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 362                                 dbg('chan', "PCPROT: Duplicate Spot ignored\n");
 363                                 return;
 364                         }
 365                         if ($censorpc) {
 366                                 my @bad;
 367                                 if (@bad = BadWords::check($field[5])) {
 368                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 369                                         return;
 370                                 }
 371                         }
 372
 373                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 374
 375             #
 376                         # @spot at this point contains:-
 377             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 378                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 379                         # you should be able to route on any of these
 380             #
 381
 382                         # fix up qra locators of known users
 383                         my $user = DXUser->get_current($spot[4]);
 384                         if ($user) {
 385                                 my $qra = $user->qra;
 386                                 unless ($qra && DXBearing::is_qra($qra)) {
 387                                         my $lat = $user->lat;
 388                                         my $long = $user->long;
 389                                         if (defined $lat && defined $long) {
 390                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 391                                                 $user->put;
 392                                         }
 393                                 }
 394
 395                                 # send a remote command to a distant cluster if it is visible and there is no
 396                                 # qra locator and we havn't done it for a month.
 397
 398                                 unless ($user->qra) {
 399                                         my $node;
 400                                         my $to = $user->homenode;
 401                                         my $last = $user->lastoper || 0;
 402                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 403                                                 my $cmd = "forward/opernam $spot[4]";
 404                                                 # send the rcmd but we aren't interested in the replies...
 405                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 406                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 407                                                 } else {
 408                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 409                                                 }
 410                                                 if ($to ne $field[7]) {
 411                                                         $to = $field[7];
 412                                                         $node = DXCluster->get_exact($to);
 413                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 414                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 415                                                         } else {
 416                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 417                                                         }
 418                                                 }
 419                                                 $user->lastoper($main::systime);
 420                                                 $user->put;
 421                                         }
 422                                 }
 423                         }
 424
 425                         # local processing
 426                         my $r;
 427                         eval {
 428                                 $r = Local::spot($self, @spot);
 429                         };
 430 #                       dbg('local', "Local::spot1 error $@") if $@;
 431                         return if $r;
 432
 433                         # DON'T be silly and send on PC26s!
 434                         return if $pcno == 26;
 435
 436                         # send out the filtered spots
 437                         send_dx_spot($self, $line, @spot) if @spot;
 438                         return;
 439                 }
 440
 441                 if ($pcno == 12) {              # announces
 442                         # announce duplicate checking
 443                         $field[3] =~ s/^\s+//;  # remove leading blanks
 444                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 445                                 dbg('chan', "PCPROT: Duplicate Announce ignored");
 446                                 return;
 447                         }
 448
 449                         if ($censorpc) {
 450                                 my @bad;
 451                                 if (@bad = BadWords::check($field[3])) {
 452                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 453                                         return;
 454                                 }
 455                         }
 456
 457                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 458
 459                                 # global ann filtering on INPUT
 460                                 if ($self->{inannfilter}) {
 461                                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
 462                                         my @dxcc = Prefix::extract($field[1]);
 463                                         if (@dxcc > 0) {
 464                                                 $ann_dxcc = $dxcc[1]->dxcc;
 465                                                 $ann_itu = $dxcc[1]->itu;
 466                                                 $ann_cq = $dxcc[1]->cq();
 467                                         }
 468                                         @dxcc = Prefix::extract($field[5]);
 469                                         if (@dxcc > 0) {
 470                                                 $org_dxcc = $dxcc[1]->dxcc;
 471                                                 $org_itu = $dxcc[1]->itu;
 472                                                 $org_cq = $dxcc[1]->cq();
 473                                         }
 474                                         my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
 475                                                                                                         $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 476                                         unless ($filter) {
 477                                                 dbg('chan', "PCPROT: Rejected by filter");
 478                                                 return;
 479                                         }
 480                                 }
 481
 482                                 # send it
 483                                 $self->send_announce($line, @field[1..6]);
 484                         } else {
 485                                 $self->route($field[2], $line);
 486                         }
 487
 488                         return;
 489                 }
 490
 491                 if ($pcno == 13) {
 492                         last SWITCH;
 493                 }
 494                 if ($pcno == 14) {
 495                         last SWITCH;
 496                 }
 497                 if ($pcno == 15) {
 498                         last SWITCH;
 499                 }
 500
 501                 if ($pcno == 16) {              # add a user
 502                         my $node = DXCluster->get_exact($field[1]);
 503                         my $dxchan;
 504                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 505                                 # add it to the node table if it isn't present and it's
 506                                 # connected locally
 507                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 508                                 dbg('chan', "PCPROT: $field[1] no PC19 yet, autovivified as node");
 509 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 510
 511                         }
 512                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 513                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 514                                 return;
 515                         }
 516                         if ($field[2] eq $main::myalias && DXChannel->get($field[1])) {
 517                                 dbg('chan', "PCPROT: trying to connect sysop from outside!");
 518                                 return;
 519                         }
 520                         unless ($node) {
 521                                 dbg('chan', "PCPROT: Node $field[1] not in config");
 522                                 return;
 523                         }
 524                         unless ($node->isa('DXNode')) {
 525                                 dbg('chan', "PCPROT: $field[1] is not a node");
 526                                 return;
 527                         }
 528                         if ($node->dxchan != $self) {
 529                                 dbg('chan', "PCPROT: $field[1] came in on wrong channel");
 530                                 return;
 531                         }
 532                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 533                                 dbg('chan', "PCPROT: $field[1] connected locally");
 534                                 return;
 535                         }
 536                         my $i;
 537
 538                         for ($i = 2; $i < $#field; $i++) {
 539                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 540                                 next unless $call && $confmode && defined $here && is_callsign($call);
 541                                 my $ref = DXCluster->get_exact($call);
 542                                 if ($ref) {
 543                                         if ($ref->isa('DXNode')) {
 544                                                 dbg('chan', "PCPROT: $call is a node");
 545                                                 next;
 546                                         }
 547                                         my $rcall = $ref->mynode->call;
 548                                         dbg('chan', "PCPROT: already have $call on $rcall");
 549                                         next;
 550                                 }
 551
 552                                 $confmode = $confmode eq '*';
 553                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 554
 555                                 # add this station to the user database, if required
 556                                 $call =~ s/-\d+$//o;        # remove ssid for users
 557                                 my $user = DXUser->get_current($call);
 558                                 $user = DXUser->new($call) if !$user;
 559                                 $user->homenode($node->call) if !$user->homenode;
 560                                 $user->node($node->call);
 561                                 $user->lastin($main::systime) unless DXChannel->get($call);
 562                                 $user->put;
 563                         }
 564
 565                         # queue up any messages (look for privates only)
 566                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 567                         last SWITCH;
 568                 }
 569
 570                 if ($pcno == 17) {              # remove a user
 571                         my $node = DXCluster->get_exact($field[2]);
 572                         my $dxchan;
 573                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 574                                 # add it to the node table if it isn't present and it's
 575                                 # connected locally
 576                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 577                                 dbg('chan', "PCPROT: $field[2] no PC19 yet, autovivified as node");
 578 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 579                         }
 580                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 581                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 582                                 return;
 583                         }
 584                         if ($field[1] eq $main::myalias && DXChannel->get($field[1])) {
 585                                 dbg('chan', "PCPROT: trying to disconnect sysop from outside!");
 586                                 return;
 587                         }
 588                         unless ($node) {
 589                                 dbg('chan', "PCPROT: Node $field[2] not in config");
 590                                 return;
 591                         }
 592                         unless ($node->isa('DXNode')) {
 593                                 dbg('chan', "PCPROT: $field[2] is not a node");
 594                                 return;
 595                         }
 596                         if ($node->dxchan != $self) {
 597                                 dbg('chan', "PCPROT: $field[2] came in on wrong channel");
 598                                 return;
 599                         }
 600                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 601                                 dbg('chan', "PCPROT: $field[2] connected locally");
 602                                 return;
 603                         }
 604                         my $ref = DXCluster->get_exact($field[1]);
 605                         if ($ref) {
 606                                 $ref->del;
 607                         } else {
 608                                 dbg('chan', "PCPROT: $field[1] not known" );
 609                                 return;
 610                         }
 611                         last SWITCH;
 612                 }
 613
 614                 if ($pcno == 18) {              # link request
 615                         $self->state('init');
 616
 617                         # first clear out any nodes on this dxchannel
 618                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 619                         foreach my $node (@gonenodes) {
 620                                 next if $node->dxchan == $DXProt::me;
 621                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 622                                 $node->del();
 623                         }
 624                         $self->send_local_config();
 625                         $self->send(pc20());
 626                         return;             # we don't pass these on
 627                 }
 628
 629                 if ($pcno == 19) {              # incoming cluster list
 630                         my $i;
 631                         my $newline = "PC19^";
 632                         for ($i = 1; $i < $#field-1; $i += 4) {
 633                                 my $here = $field[$i];
 634                                 my $call = uc $field[$i+1];
 635                                 my $confmode = $field[$i+2];
 636                                 my $ver = $field[$i+3];
 637                                 next unless defined $here && defined $confmode && is_callsign($call);
 638
 639                                 $ver = 5400 if !$ver && $allowzero;
 640
 641                                 # now check the call over
 642                                 my $node = DXCluster->get_exact($call);
 643                                 if ($node) {
 644                                         my $dxchan;
 645                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 646                                                 dbg('chan', "PCPROT: $call connected locally");
 647                                         }
 648                                     if ($node->dxchan != $self) {
 649                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 650                                                 next;
 651                                         }
 652                                         my $rcall = $node->mynode->call;
 653                                         dbg('chan', "PCPROT: already have $call on $rcall");
 654                                         next;
 655                                 }
 656
 657                                 # check for sane parameters
 658                                 next if $ver < 5000; # only works with version 5 software
 659                                 next if length $call < 3; # min 3 letter callsigns
 660
 661                                 # add it to the nodes table and outgoing line
 662                                 $newline .= "$here^$call^$confmode^$ver^";
 663                                 DXNode->new($self, $call, $confmode, $here, $ver);
 664
 665                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 666                                 my $mref = DXMsg::get_busy($call);
 667                                 $mref->stop_msg($call) if $mref;
 668
 669                                 # add this station to the user database, if required (don't remove SSID from nodes)
 670                                 my $user = DXUser->get_current($call);
 671                                 if (!$user) {
 672                                         $user = DXUser->new($call);
 673                                         $user->sort('A');
 674                                         $user->priv(1);                   # I have relented and defaulted nodes
 675                                         $self->{priv} = 1;                # to user RCMDs allowed
 676                                         $user->homenode($call);
 677                                         $user->node($call);
 678                                 }
 679                                 $user->lastin($main::systime) unless DXChannel->get($call);
 680                                 $user->put;
 681                         }
 682
 683                         return if $newline eq "PC19^";
 684
 685                         # add hop count
 686                         $newline .=  get_hops(19) . "^";
 687                         $line = $newline;
 688                         last SWITCH;
 689                 }
 690
 691                 if ($pcno == 20) {              # send local configuration
 692                         $self->send_local_config();
 693                         $self->send(pc22());
 694                         $self->state('normal');
 695                         return;
 696                 }
 697
 698                 if ($pcno == 21) {              # delete a cluster from the list
 699                         my $call = uc $field[1];
 700                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 701                                 my $node = DXCluster->get_exact($call);
 702                                 if ($node) {
 703                                         unless ($node->isa('DXNode')) {
 704                                                 dbg('chan', "PCPROT: $call is not a node");
 705                                                 return;
 706                                         }
 707                                         if ($call eq $self->{call}) {
 708                                                 dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 709                                                 return;
 710                                         }
 711                                         if ($node->dxchan != $self) {
 712                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 713                                                 return;
 714                                         }
 715                                         my $dxchan;
 716                                         if ($dxchan = DXChannel->get($call)) {
 717                                                 dbg('chan', "PCPROT: $call connected locally");
 718                                                 return;
 719                                         }
 720                                         $node->del();
 721                                 } else {
 722                                         dbg('chan', "PCPROT: $call not in table, dropped");
 723                                         return;
 724                                 }
 725                         } else {
 726                                 dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
 727                                 return;
 728                         }
 729                         last SWITCH;
 730                 }
 731
 732                 if ($pcno == 22) {
 733                         $self->state('normal');
 734                         return;
 735                 }
 736
 737                 if ($pcno == 23 || $pcno == 27) { # WWV info
 738
 739                         # route 'foreign' pc27s
 740                         if ($pcno == 27) {
 741                                 if ($field[8] ne $main::mycall) {
 742                                         $self->route($field[8], $line);
 743                                         return;
 744                                 }
 745                         }
 746
 747                         # do some de-duping
 748                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 749                         my $sfi = unpad($field[3]);
 750                         my $k = unpad($field[4]);
 751                         my $i = unpad($field[5]);
 752                         my ($r) = $field[6] =~ /R=(\d+)/;
 753                         $r = 0 unless $r;
 754                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 755                                 dbg('chan', "PCPROT: WWV Date ($field[1] $field[2]) out of range");
 756                                 return;
 757                         }
 758                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 759                                 dbg('chan', "PCPROT: Dup WWV Spot ignored\n");
 760                                 return;
 761                         }
 762                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 763
 764                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 765
 766                         my $rep;
 767                         eval {
 768                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 769                         };
 770 #                       dbg('local', "Local::wwv2 error $@") if $@;
 771                         return if $rep;
 772
 773                         # DON'T be silly and send on PC27s!
 774                         return if $pcno == 27;
 775
 776                         # broadcast to the eager world
 777                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 778                         return;
 779                 }
 780
 781                 if ($pcno == 24) {              # set here status
 782                         my $call = uc $field[1];
 783                         my $ref = DXCluster->get_exact($call);
 784                         $ref->here($field[2]) if $ref;
 785                         last SWITCH;
 786                 }
 787
 788                 if ($pcno == 25) {      # merge request
 789                         if ($field[1] ne $main::mycall) {
 790                                 $self->route($field[1], $line);
 791                                 return;
 792                         }
 793                         if ($field[2] eq $main::mycall) {
 794                                 dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 795                                 return;
 796                         }
 797
 798                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 799
 800                         # spots
 801                         if ($field[3] > 0) {
 802                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 803                                 my $in;
 804                                 foreach $in (@in) {
 805                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 806                                 }
 807                         }
 808
 809                         # wwv
 810                         if ($field[4] > 0) {
 811                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 812                                 my $in;
 813                                 foreach $in (@in) {
 814                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 815                                 }
 816                         }
 817                         return;
 818                 }
 819
 820                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 821                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 822                                 DXMsg::process($self, $line);
 823                         } else {
 824                                 $self->route($field[1], $line) unless $self->is_clx;
 825                         }
 826                         return;
 827                 }
 828
 829                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 830                         if ($field[1] eq $main::mycall) {
 831                                 my $ref = DXUser->get_current($field[2]);
 832                                 my $cref = DXCluster->get($field[2]);
 833                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 834                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 835                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 836                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 837                                                 my $oldpriv = $self->{priv};
 838                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 839                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 840                                                 $self->{priv} = $oldpriv;
 841                                                 for (@in) {
 842                                                         s/\s*$//og;
 843                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 844                                                         Log('rcmd', 'out', $field[2], $_);
 845                                                 }
 846                                                 delete $self->{remotecmd};
 847                                         } else {
 848                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 849                                         }
 850                                 } else {
 851                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 852                                 }
 853                         } else {
 854                                 my $ref = DXUser->get_current($field[1]);
 855                                 if ($ref && $ref->is_clx) {
 856                                         $self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 857                                 } else {
 858                                         $self->route($field[1], $line);
 859                                 }
 860                         }
 861                         return;
 862                 }
 863
 864                 if ($pcno == 35) {              # remote command replies
 865                         if ($field[1] eq $main::mycall) {
 866                                 my $s = $rcmds{$field[2]};
 867                                 if ($s) {
 868                                         my $dxchan = DXChannel->get($s->{call});
 869                                         $dxchan->send($field[3]) if $dxchan;
 870                                         delete $rcmds{$field[2]} if !$dxchan;
 871                                 } else {
 872                                         # send unsolicited ones to the sysop
 873                                         my $dxchan = DXChannel->get($main::myalias);
 874                                         $dxchan->send($field[3]) if $dxchan;
 875                                 }
 876                         } else {
 877                                 my $ref = DXUser->get_current($field[1]);
 878                                 if ($ref && $ref->is_clx) {
 879                                         $self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 880                                 } else {
 881                                         $self->route($field[1], $line);
 882                                 }
 883                         }
 884                         return;
 885                 }
 886
 887                 # for pc 37 see 44 onwards
 888
 889                 if ($pcno == 38) {              # node connected list from neighbour
 890                         return;
 891                 }
 892
 893                 if ($pcno == 39) {              # incoming disconnect
 894                         if ($field[1] eq $self->{call}) {
 895                                 $self->disconnect(1);
 896                         } else {
 897                                 dbg('chan', "PCPROT: came in on wrong channel");
 898                         }
 899                         return;
 900                 }
 901
 902                 if ($pcno == 41) {              # user info
 903                         # add this station to the user database, if required
 904                         my $user = DXUser->get_current($field[1]);
 905                         $user = DXUser->new($field[1]) if !$user;
 906
 907                         if ($field[2] == 1) {
 908                                 $user->name($field[3]);
 909                         } elsif ($field[2] == 2) {
 910                                 $user->qth($field[3]);
 911                         } elsif ($field[2] == 3) {
 912                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 913                                 $user->lat($lat);
 914                                 $user->long($long);
 915                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 916                         } elsif ($field[2] == 4) {
 917                                 $user->homenode($field[3]);
 918                         }
 919                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 920                         $user->put;
 921                         last SWITCH;
 922                 }
 923                 if ($pcno == 43) {
 924                         last SWITCH;
 925                 }
 926                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 927                         DXDb::process($self, $line);
 928                         return;
 929                 }
 930
 931                 if ($pcno == 50) {              # keep alive/user list
 932                         my $node = DXCluster->get_exact($field[1]);
 933                         if ($node) {
 934                                 return unless $node->isa('DXNode');
 935                                 return unless $node->dxchan == $self;
 936                                 $node->update_users($field[2]);
 937                         }
 938                         last SWITCH;
 939                 }
 940
 941                 if ($pcno == 51) {              # incoming ping requests/answers
 942
 943                         # is it for us?
 944                         if ($field[1] eq $main::mycall) {
 945                                 my $flag = $field[3];
 946                                 if ($flag == 1) {
 947                                         $self->send(pc51($field[2], $field[1], '0'));
 948                                 } else {
 949                                         # it's a reply, look in the ping list for this one
 950                                         my $ref = $pings{$field[2]};
 951                                         if ($ref) {
 952                                                 my $tochan =  DXChannel->get($field[2]);
 953                                                 while (@$ref) {
 954                                                         my $r = shift @$ref;
 955                                                         my $dxchan = DXChannel->get($r->{call});
 956                                                         next unless $dxchan;
 957                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 958                                                         if ($dxchan->is_user) {
 959                                                                 my $s = sprintf "%.2f", $t;
 960                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 961                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 962                                                         } elsif ($dxchan->is_node) {
 963                                                                 if ($tochan) {
 964                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
 965                                                                         push @{$tochan->{pingtime}}, $t;
 966                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 967                                                                         my $st;
 968                                                                         for (@{$tochan->{pingtime}}) {
 969                                                                                 $st += $_;
 970                                                                         }
 971                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 972                                                                 }
 973                                                         }
 974                                                 }
 975                                         }
 976                                 }
 977                         } else {
 978                                 # route down an appropriate thingy
 979                                 $self->route($field[1], $line);
 980                         }
 981                         return;
 982                 }
 983
 984                 if ($pcno == 75) {              # dunno but route it
 985                         if ($field[1] ne $main::mycall) {
 986                                 $self->route($field[1], $line);
 987                         }
 988                         return;
 989                 }
 990
 991                 if ($pcno == 73) {  # WCY broadcasts
 992
 993                         # do some de-duping
 994                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 995                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 996                                 dbg('chan', "PCPROT: WCY Date ($field[1] $field[2]) out of range");
 997                                 return;
 998                         }
 999                         @field = map { unpad($_) } @field;
1000                         if (WCY::dup($d,@field[3..7])) {
1001                                 dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
1002                                 return;
1003                         }
1004
1005                         my $wcy = WCY::update($d, @field[2..12]);
1006
1007                         my $rep;
1008                         eval {
1009                                 $rep = Local::wwv($self, @field[1..12]);
1010                         };
1011                         # dbg('local', "Local::wcy error $@") if $@;
1012                         return if $rep;
1013
1014                         # broadcast to the eager world
1015                         send_wcy_spot($self, $line, $d, @field[2..12]);
1016                         return;
1017                 }
1018
1019                 if ($pcno == 84) { # remote commands (incoming)
1020                         if ($field[1] eq $main::mycall) {
1021                                 my $ref = DXUser->get_current($field[2]);
1022                                 my $cref = DXCluster->get($field[2]);
1023                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1024                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1025                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1026                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1027                                                 my $oldpriv = $self->{priv};
1028                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1029                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1030                                                 $self->{priv} = $oldpriv;
1031                                                 for (@in) {
1032                                                         s/\s*$//og;
1033                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1034                                                         Log('rcmd', 'out', $field[2], $_);
1035                                                 }
1036                                                 delete $self->{remotecmd};
1037                                         } else {
1038                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1039                                         }
1040                                 } else {
1041                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1042                                 }
1043                         } else {
1044                                 my $ref = DXUser->get_current($field[1]);
1045                                 if ($ref && $ref->is_clx) {
1046                                         $self->route($field[1], $line);
1047                                 } else {
1048                                         $self->route($field[1], pc34($field[2], $field[1], $field[4]));
1049                                 }
1050                         }
1051                         return;
1052                 }
1053
1054                 if ($pcno == 85) {              # remote command replies
1055                         if ($field[1] eq $main::mycall) {
1056                                 my $dxchan = DXChannel->get($field[3]);
1057                                 if ($dxchan) {
1058                                         $dxchan->send($field[4]);
1059                                 } else {
1060                                         my $s = $rcmds{$field[2]};
1061                                         if ($s) {
1062                                                 $dxchan = DXChannel->get($s->{call});
1063                                                 $dxchan->send($field[4]) if $dxchan;
1064                                                 delete $rcmds{$field[2]} if !$dxchan;
1065                                         } else {
1066                                                 # send unsolicited ones to the sysop
1067                                                 my $dxchan = DXChannel->get($main::myalias);
1068                                                 $dxchan->send($field[4]) if $dxchan;
1069                                         }
1070                                 }
1071                         } else {
1072                                 my $ref = DXUser->get_current($field[1]);
1073                                 if ($ref && $ref->is_clx) {
1074                                         $self->route($field[1], $line);
1075                                 } else {
1076                                         $self->route($field[1], pc35($field[2], $field[1], $field[4]));
1077                                 }
1078                         }
1079                         return;
1080                 }
1081         }
1082
1083         # if get here then rebroadcast the thing with its Hop count decremented (if
1084         # there is one). If it has a hop count and it decrements to zero then don't
1085         # rebroadcast it.
1086         #
1087         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1088         #        REBROADCAST!!!!
1089         #
1090
1091         unless ($self->{isolate}) {
1092                 broadcast_ak1a($line, $self); # send it to everyone but me
1093         }
1094 }
1095
1096 #
1097 # This is called from inside the main cluster processing loop and is used
1098 # for despatching commands that are doing some long processing job
1099 #
1100 sub process
1101 {
1102         my $t = time;
1103         my @dxchan = DXChannel->get_all();
1104         my $dxchan;
1105
1106         foreach $dxchan (@dxchan) {
1107                 next unless $dxchan->is_node();
1108                 next if $dxchan == $me;
1109
1110                 # send a pc50 out on this channel
1111                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1112                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1113                         $dxchan->pc50_t($t);
1114                 }
1115
1116                 # send a ping out on this channel
1117                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1118                         if ($dxchan->{nopings} <= 0) {
1119                                 $dxchan->disconnect;
1120                         } else {
1121                                 addping($main::mycall, $dxchan->call);
1122                                 $dxchan->{nopings} -= 1;
1123                                 $dxchan->{lastping} = $t;
1124                         }
1125                 }
1126         }
1127
1128         my $key;
1129         my $val;
1130         my $cutoff;
1131         if ($main::systime - 3600 > $last_hour) {
1132 #               Spot::process;
1133 #               Geomag::process;
1134 #               AnnTalk::process;
1135                 $last_hour = $main::systime;
1136         }
1137 }
1138
1139 #
1140 # finish up a pc context
1141 #
1142 sub finish
1143 {
1144         my $self = shift;
1145         my $call = $self->call;
1146         my $conn = shift;
1147         my $ref = DXCluster->get_exact($call);
1148
1149         # unbusy and stop and outgoing mail
1150         my $mref = DXMsg::get_busy($call);
1151         $mref->stop_msg($call) if $mref;
1152
1153         # broadcast to all other nodes that all the nodes connected to via me are gone
1154         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1155         my $node;
1156
1157         foreach $node (@gonenodes) {
1158                 next if $node->call eq $call;
1159                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1160                 $node->del();
1161         }
1162
1163         # remove outstanding pings
1164         delete $pings{$call};
1165
1166         # now broadcast to all other ak1a nodes that I have gone
1167         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1168
1169         # I was the last node visited
1170     $self->user->node($main::mycall);
1171
1172         # send info to all logged in thingies
1173         $self->tell_login('logoutn');
1174
1175         Log('DXProt', $call . " Disconnected");
1176         $ref->del() if $ref;
1177 }
1178
1179 #
1180 # some active measures
1181 #
1182 sub send_dx_spot
1183 {
1184         my $self = shift;
1185         my $line = shift;
1186         my @dxchan = DXChannel->get_all();
1187         my $dxchan;
1188
1189         # send it if it isn't the except list and isn't isolated and still has a hop count
1190         # taking into account filtering and so on
1191         foreach $dxchan (@dxchan) {
1192                 my $routeit;
1193                 my ($filter, $hops);
1194
1195                 if ($dxchan->{spotsfilter}) {
1196                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1197                         next unless $filter;
1198                 }
1199
1200                 if ($dxchan->is_node) {
1201                         next if $dxchan == $self;
1202                         if ($hops) {
1203                                 $routeit = $line;
1204                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1205                         } else {
1206                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1207                                 next unless $routeit;
1208                         }
1209                         if ($filter) {
1210                                 $dxchan->send($routeit) if $routeit;
1211                         } else {
1212                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1213                         }
1214                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1215                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1216                         $buf .= "\a\a" if $dxchan->{beep};
1217                         $buf =~ s/\%5E/^/g;
1218                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1219                                 $dxchan->send($buf);
1220                         } else {
1221                                 $dxchan->delay($buf);
1222                         }
1223                 }
1224         }
1225 }
1226
1227 sub send_wwv_spot
1228 {
1229         my $self = shift;
1230         my $line = shift;
1231         my @dxchan = DXChannel->get_all();
1232         my $dxchan;
1233         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1234         my @dxcc = Prefix::extract($_[7]);
1235         if (@dxcc > 0) {
1236                 $wwv_dxcc = $dxcc[1]->dxcc;
1237                 $wwv_itu = $dxcc[1]->itu;
1238                 $wwv_cq = $dxcc[1]->cq;
1239         }
1240         @dxcc = Prefix::extract($_[8]);
1241         if (@dxcc > 0) {
1242                 $org_dxcc = $dxcc[1]->dxcc;
1243                 $org_itu = $dxcc[1]->itu;
1244                 $org_cq = $dxcc[1]->cq;
1245         }
1246
1247         # send it if it isn't the except list and isn't isolated and still has a hop count
1248         # taking into account filtering and so on
1249         foreach $dxchan (@dxchan) {
1250                 my $routeit;
1251                 my ($filter, $hops);
1252
1253                 if ($dxchan->{wwvfilter}) {
1254                         ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1255                          next unless $filter;
1256                 }
1257                 if ($dxchan->is_node) {
1258                         next if $dxchan == $self;
1259                         if ($hops) {
1260                                 $routeit = $line;
1261                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1262                         } else {
1263                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1264                                 next unless $routeit;
1265                         }
1266                         if ($filter) {
1267                                 $dxchan->send($routeit) if $routeit;
1268                         } else {
1269                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1270
1271                         }
1272                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1273                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1274                         $buf .= "\a\a" if $dxchan->{beep};
1275                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1276                                 $dxchan->send($buf);
1277                         } else {
1278                                 $dxchan->delay($buf);
1279                         }
1280                 }
1281         }
1282 }
1283
1284 sub send_wcy_spot
1285 {
1286         my $self = shift;
1287         my $line = shift;
1288         my @dxchan = DXChannel->get_all();
1289         my $dxchan;
1290         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1291         my @dxcc = Prefix::extract($_[11]);
1292         if (@dxcc > 0) {
1293                 $wcy_dxcc = $dxcc[1]->dxcc;
1294                 $wcy_itu = $dxcc[1]->itu;
1295                 $wcy_cq = $dxcc[1]->cq;
1296         }
1297         @dxcc = Prefix::extract($_[12]);
1298         if (@dxcc > 0) {
1299                 $org_dxcc = $dxcc[1]->dxcc;
1300                 $org_itu = $dxcc[1]->itu;
1301                 $org_cq = $dxcc[1]->cq;
1302         }
1303
1304         # send it if it isn't the except list and isn't isolated and still has a hop count
1305         # taking into account filtering and so on
1306         foreach $dxchan (@dxchan) {
1307                 my $routeit;
1308                 my ($filter, $hops);
1309
1310                 if ($dxchan->{wcyfilter}) {
1311                         ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1312                          next unless $filter;
1313                 }
1314                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1315                         next if $dxchan == $self;
1316                         if ($hops) {
1317                                 $routeit = $line;
1318                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1319                         } else {
1320                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1321                                 next unless $routeit;
1322                         }
1323                         if ($filter) {
1324                                 $dxchan->send($routeit) if $routeit;
1325                         } else {
1326                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1327                         }
1328                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1329                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1330                         $buf .= "\a\a" if $dxchan->{beep};
1331                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1332                                 $dxchan->send($buf);
1333                         } else {
1334                                 $dxchan->delay($buf);
1335                         }
1336                 }
1337         }
1338 }
1339
1340 # send an announce
1341 sub send_announce
1342 {
1343         my $self = shift;
1344         my $line = shift;
1345         my @dxchan = DXChannel->get_all();
1346         my $dxchan;
1347         my $text = unpad($_[2]);
1348         my $target;
1349         my $to = 'To ';
1350
1351         if ($_[3] eq '*') {     # sysops
1352                 $target = "SYSOP";
1353         } elsif ($_[3] gt ' ') { # speciality list handling
1354                 my ($name) = split /\./, $_[3];
1355                 $target = "$name"; # put the rest in later (if bothered)
1356         }
1357
1358         if ($_[5] eq '1') {
1359                 $target = "WX";
1360                 $to = '';
1361         }
1362         $target = "ALL" if !$target;
1363
1364         Log('ann', $target, $_[0], $text);
1365
1366         # obtain country codes etc
1367         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1368         my @dxcc = Prefix::extract($_[0]);
1369         if (@dxcc > 0) {
1370                 $ann_dxcc = $dxcc[1]->dxcc;
1371                 $ann_itu = $dxcc[1]->itu;
1372                 $ann_cq = $dxcc[1]->cq;
1373         }
1374         @dxcc = Prefix::extract($_[4]);
1375         if (@dxcc > 0) {
1376                 $org_dxcc = $dxcc[1]->dxcc;
1377                 $org_itu = $dxcc[1]->itu;
1378                 $org_cq = $dxcc[1]->cq;
1379         }
1380
1381         # send it if it isn't the except list and isn't isolated and still has a hop count
1382         # taking into account filtering and so on
1383         foreach $dxchan (@dxchan) {
1384                 my $routeit;
1385                 my ($filter, $hops);
1386
1387                 if ($dxchan->{annfilter}) {
1388                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1389                         next unless $filter;
1390                 }
1391                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1392                         next if $dxchan == $self;
1393                         if ($hops) {
1394                                 $routeit = $line;
1395                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1396                         } else {
1397                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1398                                 next unless $routeit;
1399                         }
1400                         if ($filter) {
1401                                 $dxchan->send($routeit) if $routeit;
1402                         } else {
1403                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1404
1405                         }
1406                 } elsif ($dxchan->is_user) {
1407                         unless ($dxchan->{ann}) {
1408                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1409                         }
1410                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1411                         my $buf = "$to$target de $_[0]: $text";
1412                         $buf =~ s/\%5E/^/g;
1413                         $buf .= "\a\a" if $dxchan->{beep};
1414                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1415                                 $dxchan->send($buf);
1416                         } else {
1417                                 $dxchan->delay($buf);
1418                         }
1419                 }
1420         }
1421 }
1422
1423 sub send_local_config
1424 {
1425         my $self = shift;
1426         my $n;
1427         my @nodes;
1428         my @localnodes;
1429         my @remotenodes;
1430
1431         # send our nodes
1432         if ($self->{isolate}) {
1433                 @localnodes = (DXCluster->get_exact($main::mycall));
1434         } else {
1435                 # create a list of all the nodes that are not connected to this connection
1436                 # and are not themselves isolated, this to make sure that isolated nodes
1437         # don't appear outside of this node
1438                 @nodes = DXNode::get_all();
1439                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1440                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1441                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1442                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1443                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1444                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1445         }
1446
1447         my @s = $me->pc19(@localnodes, @remotenodes);
1448         for (@s) {
1449                 my $routeit = adjust_hops($self, $_);
1450                 $self->send($routeit) if $routeit;
1451         }
1452
1453         # get all the users connected on the above nodes and send them out
1454         foreach $n (@localnodes, @remotenodes) {
1455                 my @users = values %{$n->list};
1456                 my @s = pc16($n, @users);
1457                 for (@s) {
1458                         my $routeit = adjust_hops($self, $_);
1459                         $self->send($routeit) if $routeit;
1460                 }
1461         }
1462 }
1463
1464 #
1465 # route a message down an appropriate interface for a callsign
1466 #
1467 # is called route(to, pcline);
1468 #
1469 sub route
1470 {
1471         my ($self, $call, $line) = @_;
1472
1473         if (ref $self && $call eq $self->{call}) {
1474                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1475                 return;
1476         }
1477
1478         # always send it down the local interface if available
1479         my $dxchan = DXChannel->get($call);
1480         unless ($dxchan) {
1481                 my $cl = DXCluster->get_exact($call);
1482                 $dxchan = $cl->dxchan if $cl;
1483                 if (ref $dxchan) {
1484                         if (ref $self && $dxchan eq $self) {
1485                                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1486                                 return;
1487                         }
1488                 }
1489         }
1490         if ($dxchan) {
1491                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1492                 if ($routeit) {
1493                         $dxchan->send($routeit);
1494                 }
1495         } else {
1496                 dbg('chan', "PCPROT: No route available, dropped");
1497         }
1498 }
1499
1500 # broadcast a message to all clusters taking into account isolation
1501 # [except those mentioned after buffer]
1502 sub broadcast_ak1a
1503 {
1504         my $s = shift;                          # the line to be rebroadcast
1505         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1506         my @dxchan = DXChannel::get_all_nodes();
1507         my $dxchan;
1508
1509         # send it if it isn't the except list and isn't isolated and still has a hop count
1510         foreach $dxchan (@dxchan) {
1511                 next if grep $dxchan == $_, @except;
1512                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1513                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1514         }
1515 }
1516
1517 # broadcast a message to all clusters ignoring isolation
1518 # [except those mentioned after buffer]
1519 sub broadcast_all_ak1a
1520 {
1521         my $s = shift;                          # the line to be rebroadcast
1522         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1523         my @dxchan = DXChannel::get_all_nodes();
1524         my $dxchan;
1525
1526         # send it if it isn't the except list and isn't isolated and still has a hop count
1527         foreach $dxchan (@dxchan) {
1528                 next if grep $dxchan == $_, @except;
1529                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1530                 $dxchan->send($routeit);
1531         }
1532 }
1533
1534 # broadcast to all users
1535 # storing the spot or whatever until it is in a state to receive it
1536 sub broadcast_users
1537 {
1538         my $s = shift;                          # the line to be rebroadcast
1539         my $sort = shift;           # the type of transmission
1540         my $fref = shift;           # a reference to an object to filter on
1541         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1542         my @dxchan = DXChannel::get_all_users();
1543         my $dxchan;
1544         my @out;
1545
1546         foreach $dxchan (@dxchan) {
1547                 next if grep $dxchan == $_, @except;
1548                 push @out, $dxchan;
1549         }
1550         broadcast_list($s, $sort, $fref, @out);
1551 }
1552
1553 # broadcast to a list of users
1554 sub broadcast_list
1555 {
1556         my $s = shift;
1557         my $sort = shift;
1558         my $fref = shift;
1559         my $dxchan;
1560
1561         foreach $dxchan (@_) {
1562                 my $filter = 1;
1563
1564                 if ($sort eq 'dx') {
1565                     next unless $dxchan->{dx};
1566                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1567                         next unless $filter;
1568                 }
1569                 next if $sort eq 'ann' && !$dxchan->{ann};
1570                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1571                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1572                 next if $sort eq 'wx' && !$dxchan->{wx};
1573
1574                 $s =~ s/\a//og unless $dxchan->{beep};
1575
1576                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1577                         $dxchan->send($s);
1578                 } else {
1579                         $dxchan->delay($s);
1580                 }
1581         }
1582 }
1583
1584
1585 #
1586 # obtain the hops from the list for this callsign and pc no
1587 #
1588
1589 sub get_hops
1590 {
1591         my $pcno = shift;
1592         my $hops = $DXProt::hopcount{$pcno};
1593         $hops = $DXProt::def_hopcount if !$hops;
1594         return "H$hops";
1595 }
1596
1597 #
1598 # adjust the hop count on a per node basis using the user loadable
1599 # hop table if available or else decrement an existing one
1600 #
1601
1602 sub adjust_hops
1603 {
1604         my $self = shift;
1605         my $s = shift;
1606         my $call = $self->{call};
1607         my $hops;
1608
1609         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1610                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1611                 confess "$call called adjust_hops with '$s'" unless $pcno;
1612                 my $ref = $nodehops{$call} if %nodehops;
1613                 if ($ref) {
1614                         my $newhops = $ref->{$pcno};
1615                         return "" if defined $newhops && $newhops == 0;
1616                         $newhops = $ref->{default} unless $newhops;
1617                         return "" if defined $newhops && $newhops == 0;
1618                         $newhops = $hops if !$newhops;
1619                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1620                 } else {
1621                         # simply decrement it
1622                         $hops--;
1623                         return "" if !$hops;
1624                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1625                 }
1626         }
1627         return $s;
1628 }
1629
1630 #
1631 # load hop tables
1632 #
1633 sub load_hops
1634 {
1635         my $self = shift;
1636         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1637         do "$main::data/hop_table.pl";
1638         return $@ if $@;
1639         return 0;
1640 }
1641
1642
1643 # add a ping request to the ping queues
1644 sub addping
1645 {
1646         my ($from, $to) = @_;
1647         my $ref = $pings{$to} || [];
1648         my $r = {};
1649         $r->{call} = $from;
1650         $r->{t} = [ gettimeofday ];
1651         route(undef, $to, pc51($to, $main::mycall, 1));
1652         push @$ref, $r;
1653         $pings{$to} = $ref;
1654 }
1655
1656 # add a rcmd request to the rcmd queues
1657 sub addrcmd
1658 {
1659         my ($self, $to, $cmd) = @_;
1660
1661         my $r = {};
1662         $r->{call} = $self->{call};
1663         $r->{t} = $main::systime;
1664         $r->{cmd} = $cmd;
1665         $rcmds{$to} = $r;
1666
1667         my $ref = DXCluster->get_exact($to);
1668     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1669                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1670         } else {
1671                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1672         }
1673 }
1674
1675 sub disconnect
1676 {
1677         my $self = shift;
1678         my $nopc39 = shift;
1679
1680         if ($self->{conn} && !$nopc39) {
1681                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1682         }
1683
1684         $self->SUPER::disconnect;
1685 }
1686
1687
1688 #
1689 # send a talk message to this thingy
1690 #
1691 sub talk
1692 {
1693         my ($self, $from, $to, $via, $line) = @_;
1694
1695         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1696         $self->send(DXProt::pc10($from, $to, $via, $line));
1697         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1698 }
1699 1;
1700 __END__