perl/DXProt.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the protocal mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 package DXProt;
  11
  12 @ISA = qw(DXChannel);
  13
  14 use DXUtil;
  15 use DXChannel;
  16 use DXUser;
  17 use DXM;
  18 use DXCluster;
  19 use DXProtVars;
  20 use DXCommandmode;
  21 use DXLog;
  22 use Spot;
  23 use DXProtout;
  24 use DXDebug;
  25 use Filter;
  26 use Local;
  27 use DXDb;
  28 use AnnTalk;
  29 use Geomag;
  30 use WCY;
  31 use Time::HiRes qw(gettimeofday tv_interval);
  32 use BadWords;
  33 use DXHash;
  34
  35 use strict;
  36 use vars qw($me $pc11_max_age $pc23_max_age
  37                         $last_hour %pings %rcmds
  38                         %nodehops $baddx $badspotter $badnode $censorpc
  39                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  40
  41 $me = undef;                                    # the channel id for this cluster
  42 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  43 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  44
  45 $last_hour = time;                              # last time I did an hourly periodic update
  46 %pings = ();                    # outstanding ping requests outbound
  47 %rcmds = ();                    # outstanding rcmd requests outbound
  48 %nodehops = ();                 # node specific hop control
  49 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  50                                                                 # loads of 'bad things'
  51 $baddx = new DXHash "baddx";
  52 $badspotter = new DXHash "badspotter";
  53 $badnode = new DXHash "badnode";
  54
  55 @checklist =
  56 (
  57  [ qw(c c m bp bc c) ],                 # pc10
  58  [ qw(f m d t m c c h) ],               # pc11
  59  [ qw(c bc m bp bm p h) ],              # pc12
  60  [ qw(c h) ],                                   #
  61  [ qw(c h) ],                                   #
  62  [ qw(c m h) ],                                 #
  63  undef ,                                                # pc16 has to be validated manually
  64  [ qw(c c h) ],                                 # pc17
  65  [ qw(m n) ],                                   # pc18
  66  undef ,                                                # pc19 has to be validated manually
  67  undef ,                                                # pc20 no validation
  68  [ qw(c m h) ],                                 # pc21
  69  undef ,                                                # pc22 no validation
  70  [ qw(d n n n n m c c h) ],             # pc23
  71  [ qw(c p h) ],                                 # pc24
  72  [ qw(c c n n) ],                               # pc25
  73  [ qw(f m d t m c c bc) ],              # pc26
  74  [ qw(d n n n n m c c bc) ],    # pc27
  75  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  76  [ qw(c c n m) ],                               # pc29
  77  [ qw(c c n) ],                                 # pc30
  78  [ qw(c c n) ],                                 # pc31
  79  [ qw(c c n) ],                                 # pc32
  80  [ qw(c c n) ],                                 # pc33
  81  [ qw(c c m) ],                                 # pc34
  82  [ qw(c c m) ],                                 # pc35
  83  [ qw(c c m) ],                                 # pc36
  84  [ qw(c c n m) ],                               # pc37
  85  undef,                                                 # pc38 not interested
  86  [ qw(c m) ],                                   # pc39
  87  [ qw(c c m p n) ],                             # pc40
  88  [ qw(c n m h) ],                               # pc41
  89  [ qw(c c n) ],                                 # pc42
  90  undef,                                                 # pc43 don't handle it
  91  [ qw(c c n m m c) ],                   # pc44
  92  [ qw(c c n m) ],                               # pc45
  93  [ qw(c c n) ],                                 # pc46
  94  undef,                                                 # pc47
  95  undef,                                                 # pc48
  96  [ qw(c m h) ],                                 # pc49
  97  [ qw(c n h) ],                                 # pc50
  98  [ qw(c c n) ],                                 # pc51
  99  undef,
 100  undef,
 101  undef,
 102  undef,
 103  undef,
 104  undef,
 105  undef,
 106  undef,
 107  undef,                                                 # pc60
 108  undef,
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,
 115  undef,
 116  undef,
 117  undef,                                                 # pc70
 118  undef,
 119  undef,
 120  [ qw(d n n n n n n m m m c c h) ],     # pc73
 121  undef,
 122  undef,
 123  undef,
 124  undef,
 125  undef,
 126  undef,
 127  undef,                                                 # pc80
 128  undef,
 129  undef,
 130  undef,
 131  [ qw(c c c m) ],                               # pc84
 132  [ qw(c c c m) ],                               # pc85
 133 );
 134
 135 # use the entry in the check list to check the field list presented
 136 # return OK if line NOT in check list (for now)
 137 sub check
 138 {
 139         my $n = shift;
 140         $n -= 10;
 141         return 0 if $n < 0 || $n > @checklist;
 142         my $ref = $checklist[$n];
 143         return 0 unless ref $ref;
 144
 145         my $i;
 146         shift;    # not interested in the first field
 147         for ($i = 0; $i < @$ref; $i++) {
 148                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 149                 return 0 unless $act;
 150                 next if $blank && $_[$i] =~ /^[ \*]$/;
 151                 if ($act eq 'c') {
 152                         return $i+1 unless is_callsign($_[$i]);
 153                 } elsif ($act eq 'm') {
 154                         return $i+1 unless is_pctext($_[$i]);
 155                 } elsif ($act eq 'p') {
 156                         return $i+1 unless is_pcflag($_[$i]);
 157                 } elsif ($act eq 'f') {
 158                         return $i+1 unless is_freq($_[$i]);
 159                 } elsif ($act eq 'n') {
 160                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 161                 } elsif ($act eq 'h') {
 162                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 163                 } elsif ($act eq 'd') {
 164                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 165                 } elsif ($act eq 't') {
 166                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 167                 }
 168         }
 169         return 0;
 170 }
 171
 172 sub init
 173 {
 174         my $user = DXUser->get($main::mycall);
 175         $DXProt::myprot_version += $main::version*100;
 176         $me = DXProt->new($main::mycall, 0, $user);
 177         $me->{here} = 1;
 178         $me->{state} = "indifferent";
 179         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 180         confess $@ if $@;
 181         $me->{sort} = 'S';    # S for spider
 182 }
 183
 184 #
 185 # obtain a new connection this is derived from dxchannel
 186 #
 187
 188 sub new
 189 {
 190         my $self = DXChannel::alloc(@_);
 191         return $self;
 192 }
 193
 194 # this is how a pc connection starts (for an incoming connection)
 195 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 196 # all the crap that comes between).
 197 sub start
 198 {
 199         my ($self, $line, $sort) = @_;
 200         my $call = $self->{call};
 201         my $user = $self->{user};
 202
 203         # remember type of connection
 204         $self->{consort} = $line;
 205         $self->{outbound} = $sort eq 'O';
 206         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 207         $self->{lang} = $user->lang || 'en';
 208         $self->{isolate} = $user->{isolate};
 209         $self->{consort} = $line;       # save the connection type
 210         $self->{here} = 1;
 211
 212         # get the output filters
 213         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 214         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 215         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 216         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 217
 218
 219         # get the INPUT filters (these only pertain to Clusters)
 220         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 221         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 222         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 223         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 224
 225         # set unbuffered and no echo
 226         $self->send_now('B',"0");
 227         $self->send_now('E',"0");
 228
 229         # ping neighbour node stuff
 230         my $ping = $user->pingint;
 231         $ping = 5*60 unless defined $ping;
 232         $self->{pingint} = $ping;
 233         $self->{nopings} = $user->nopings || 2;
 234         $self->{pingtime} = [ ];
 235         $self->{pingave} = 0;
 236
 237         # send initialisation string
 238         unless ($self->{outbound}) {
 239                 $self->send(pc18());
 240                 $self->{lastping} = $main::systime;
 241         } else {
 242                 $self->{lastping} = $main::systime + ($self->pingint / 2);
 243         }
 244         $self->state('init');
 245         $self->pc50_t(time);
 246
 247         # send info to all logged in thingies
 248         $self->tell_login('loginn');
 249
 250         Log('DXProt', "$call connected");
 251 }
 252
 253 #
 254 # This is the normal pcxx despatcher
 255 #
 256 sub normal
 257 {
 258         my ($self, $line) = @_;
 259         my @field = split /\^/, $line;
 260         return unless @field;
 261
 262         pop @field if $field[-1] eq '~';
 263
 264 #       print join(',', @field), "\n";
 265
 266         # ignore any lines that don't start with PC
 267         return if !$field[0] =~ /^PC/;
 268
 269         # process PC frames
 270         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 271         return unless $pcno;
 272         return if $pcno < 10 || $pcno > 99;
 273
 274         # check for and dump bad protocol messages
 275         my $n = check($pcno, @field);
 276         if ($n) {
 277                 dbg('chan', "PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 278                 return;
 279         }
 280
 281         # local processing 1
 282         my $pcr;
 283         eval {
 284                 $pcr = Local::pcprot($self, $pcno, @field);
 285         };
 286 #       dbg('local', "Local::pcprot error $@") if $@;
 287         return if $pcr;
 288
 289  SWITCH: {
 290                 if ($pcno == 10) {              # incoming talk
 291
 292                         # will we allow it at all?
 293                         if ($censorpc) {
 294                                 my @bad;
 295                                 if (@bad = BadWords::check($field[3])) {
 296                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 297                                         return;
 298                                 }
 299                         }
 300
 301                         # is it for me or one of mine?
 302                         my ($to, $via, $call, $dxchan);
 303                         if ($field[5] gt ' ') {
 304                                 $call = $via = $field[2];
 305                                 $to = $field[5];
 306                         } else {
 307                                 $call = $to = $field[2];
 308                         }
 309                         $dxchan = DXChannel->get($call);
 310                         if ($dxchan && $dxchan->is_user) {
 311                                 $field[3] =~ s/\%5E/^/g;
 312                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 313                         } else {
 314                                 $self->route($field[2], $line); # relay it on its way
 315                         }
 316                         return;
 317                 }
 318
 319                 if ($pcno == 11 || $pcno == 26) { # dx spot
 320
 321                         # route 'foreign' pc26s
 322                         if ($pcno == 26) {
 323                                 if ($field[7] ne $main::mycall) {
 324                                         $self->route($field[7], $line);
 325                                         return;
 326                                 }
 327                         }
 328
 329                         # if this is a 'nodx' node then ignore it
 330                         if ($badnode->in($field[7])) {
 331                                 dbg('chan', "PCPROT: Bad Node, dropped");
 332                                 return;
 333                         }
 334
 335                         # if this is a 'bad spotter' user then ignore it
 336                         if ($badspotter->in($field[6])) {
 337                                 dbg('chan', "PCPROT: Bad Spotter, dropped");
 338                                 return;
 339                         }
 340
 341                         # convert the date to a unix date
 342                         my $d = cltounix($field[3], $field[4]);
 343                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 344                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 345                                 dbg('chan', "PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 346                                 return;
 347                         }
 348
 349                         # is it 'baddx'
 350                         if ($baddx->in($field[2])) {
 351                                 dbg('chan', "PCPROT: Bad DX spot, ignored");
 352                                 return;
 353                         }
 354
 355                         # do some de-duping
 356                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 357                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 358                         if ($field[2] =~ /BUST\w*$/) {
 359                                 dbg('chan', "PCPROT: useless 'BUSTED' spot");
 360                                 return;
 361                         }
 362                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 363                                 dbg('chan', "PCPROT: Duplicate Spot ignored\n");
 364                                 return;
 365                         }
 366                         if ($censorpc) {
 367                                 my @bad;
 368                                 if (@bad = BadWords::check($field[5])) {
 369                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 370                                         return;
 371                                 }
 372                         }
 373
 374                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 375
 376             #
 377                         # @spot at this point contains:-
 378             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 379                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 380                         # you should be able to route on any of these
 381             #
 382
 383                         # fix up qra locators of known users
 384                         my $user = DXUser->get_current($spot[4]);
 385                         if ($user) {
 386                                 my $qra = $user->qra;
 387                                 unless ($qra && DXBearing::is_qra($qra)) {
 388                                         my $lat = $user->lat;
 389                                         my $long = $user->long;
 390                                         if (defined $lat && defined $long) {
 391                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 392                                                 $user->put;
 393                                         }
 394                                 }
 395
 396                                 # send a remote command to a distant cluster if it is visible and there is no
 397                                 # qra locator and we havn't done it for a month.
 398
 399                                 unless ($user->qra) {
 400                                         my $node;
 401                                         my $to = $user->homenode;
 402                                         my $last = $user->lastoper || 0;
 403                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 404                                                 my $cmd = "forward/opernam $spot[4]";
 405                                                 # send the rcmd but we aren't interested in the replies...
 406                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 407                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 408                                                 } else {
 409                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 410                                                 }
 411                                                 if ($to ne $field[7]) {
 412                                                         $to = $field[7];
 413                                                         $node = DXCluster->get_exact($to);
 414                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 415                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 416                                                         } else {
 417                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 418                                                         }
 419                                                 }
 420                                                 $user->lastoper($main::systime);
 421                                                 $user->put;
 422                                         }
 423                                 }
 424                         }
 425
 426                         # local processing
 427                         my $r;
 428                         eval {
 429                                 $r = Local::spot($self, @spot);
 430                         };
 431 #                       dbg('local', "Local::spot1 error $@") if $@;
 432                         return if $r;
 433
 434                         # DON'T be silly and send on PC26s!
 435                         return if $pcno == 26;
 436
 437                         # send out the filtered spots
 438                         send_dx_spot($self, $line, @spot) if @spot;
 439                         return;
 440                 }
 441
 442                 if ($pcno == 12) {              # announces
 443                         # announce duplicate checking
 444                         $field[3] =~ s/^\s+//;  # remove leading blanks
 445                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 446                                 dbg('chan', "PCPROT: Duplicate Announce ignored");
 447                                 return;
 448                         }
 449
 450                         if ($censorpc) {
 451                                 my @bad;
 452                                 if (@bad = BadWords::check($field[3])) {
 453                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 454                                         return;
 455                                 }
 456                         }
 457
 458                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 459
 460                                 # global ann filtering on INPUT
 461                                 if ($self->{inannfilter}) {
 462                                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
 463                                         my @dxcc = Prefix::extract($field[1]);
 464                                         if (@dxcc > 0) {
 465                                                 $ann_dxcc = $dxcc[1]->dxcc;
 466                                                 $ann_itu = $dxcc[1]->itu;
 467                                                 $ann_cq = $dxcc[1]->cq();
 468                                         }
 469                                         @dxcc = Prefix::extract($field[5]);
 470                                         if (@dxcc > 0) {
 471                                                 $org_dxcc = $dxcc[1]->dxcc;
 472                                                 $org_itu = $dxcc[1]->itu;
 473                                                 $org_cq = $dxcc[1]->cq();
 474                                         }
 475                                         my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
 476                                                                                                         $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 477                                         unless ($filter) {
 478                                                 dbg('chan', "PCPROT: Rejected by filter");
 479                                                 return;
 480                                         }
 481                                 }
 482
 483                                 # send it
 484                                 $self->send_announce($line, @field[1..6]);
 485                         } else {
 486                                 $self->route($field[2], $line);
 487                         }
 488
 489                         return;
 490                 }
 491
 492                 if ($pcno == 13) {
 493                         last SWITCH;
 494                 }
 495                 if ($pcno == 14) {
 496                         last SWITCH;
 497                 }
 498                 if ($pcno == 15) {
 499                         last SWITCH;
 500                 }
 501
 502                 if ($pcno == 16) {              # add a user
 503                         my $node = DXCluster->get_exact($field[1]);
 504                         my $dxchan;
 505                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 506                                 # add it to the node table if it isn't present and it's
 507                                 # connected locally
 508                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 509                                 dbg('chan', "PCPROT: $field[1] no PC19 yet, autovivified as node");
 510 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 511
 512                         }
 513                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 514                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 515                                 return;
 516                         }
 517                         if ($field[2] eq $main::myalias && DXChannel->get($field[1])) {
 518                                 dbg('chan', "PCPROT: trying to connect sysop from outside!");
 519                                 return;
 520                         }
 521                         unless ($node) {
 522                                 dbg('chan', "PCPROT: Node $field[1] not in config");
 523                                 return;
 524                         }
 525                         unless ($node->isa('DXNode')) {
 526                                 dbg('chan', "PCPROT: $field[1] is not a node");
 527                                 return;
 528                         }
 529                         if ($node->dxchan != $self) {
 530                                 dbg('chan', "PCPROT: $field[1] came in on wrong channel");
 531                                 return;
 532                         }
 533                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 534                                 dbg('chan', "PCPROT: $field[1] connected locally");
 535                                 return;
 536                         }
 537                         my $i;
 538
 539                         for ($i = 2; $i < $#field; $i++) {
 540                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 541                                 next unless $call && $confmode && defined $here && is_callsign($call);
 542                                 my $ref = DXCluster->get_exact($call);
 543                                 if ($ref) {
 544                                         if ($ref->isa('DXNode')) {
 545                                                 dbg('chan', "PCPROT: $call is a node");
 546                                                 next;
 547                                         }
 548                                         my $rcall = $ref->mynode->call;
 549                                         dbg('chan', "PCPROT: already have $call on $rcall");
 550                                         next;
 551                                 }
 552
 553                                 $confmode = $confmode eq '*';
 554                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 555
 556                                 # add this station to the user database, if required
 557                                 $call =~ s/-\d+$//o;        # remove ssid for users
 558                                 my $user = DXUser->get_current($call);
 559                                 $user = DXUser->new($call) if !$user;
 560                                 $user->homenode($node->call) if !$user->homenode;
 561                                 $user->node($node->call);
 562                                 $user->lastin($main::systime) unless DXChannel->get($call);
 563                                 $user->put;
 564                         }
 565
 566                         # queue up any messages (look for privates only)
 567                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 568                         last SWITCH;
 569                 }
 570
 571                 if ($pcno == 17) {              # remove a user
 572                         my $node = DXCluster->get_exact($field[2]);
 573                         my $dxchan;
 574                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 575                                 # add it to the node table if it isn't present and it's
 576                                 # connected locally
 577                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 578                                 dbg('chan', "PCPROT: $field[2] no PC19 yet, autovivified as node");
 579 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 580                         }
 581                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 582                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 583                                 return;
 584                         }
 585                         if ($field[1] eq $main::myalias && DXChannel->get($field[1])) {
 586                                 dbg('chan', "PCPROT: trying to disconnect sysop from outside!");
 587                                 return;
 588                         }
 589                         unless ($node) {
 590                                 dbg('chan', "PCPROT: Node $field[2] not in config");
 591                                 return;
 592                         }
 593                         unless ($node->isa('DXNode')) {
 594                                 dbg('chan', "PCPROT: $field[2] is not a node");
 595                                 return;
 596                         }
 597                         if ($node->dxchan != $self) {
 598                                 dbg('chan', "PCPROT: $field[2] came in on wrong channel");
 599                                 return;
 600                         }
 601                         if ($dxchan = DXChannel->get($field[1])) {
 602                                 dbg('chan', "PCPROT: $field[1] connected locally");
 603                                 return;
 604                         }
 605                         my $ref = DXCluster->get_exact($field[1]);
 606                         if ($ref) {
 607                                 if ($ref->mynode != $node) {
 608                                         dbg('chan', "PCPROT: $field[1] came in from wrong node $field[2]");
 609                                         return;
 610                                 }
 611                                 $ref->del;
 612                         } else {
 613                                 dbg('chan', "PCPROT: $field[1] not known" );
 614                                 return;
 615                         }
 616                         last SWITCH;
 617                 }
 618
 619                 if ($pcno == 18) {              # link request
 620                         $self->state('init');
 621
 622                         # first clear out any nodes on this dxchannel
 623                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 624                         foreach my $node (@gonenodes) {
 625                                 next if $node->dxchan == $DXProt::me;
 626                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 627                                 $node->del();
 628                         }
 629                         $self->send_local_config();
 630                         $self->send(pc20());
 631                         return;             # we don't pass these on
 632                 }
 633
 634                 if ($pcno == 19) {              # incoming cluster list
 635                         my $i;
 636                         my $newline = "PC19^";
 637                         for ($i = 1; $i < $#field-1; $i += 4) {
 638                                 my $here = $field[$i];
 639                                 my $call = uc $field[$i+1];
 640                                 my $confmode = $field[$i+2];
 641                                 my $ver = $field[$i+3];
 642                                 next unless defined $here && defined $confmode && is_callsign($call);
 643
 644                                 $ver = 5400 if !$ver && $allowzero;
 645
 646                                 # now check the call over
 647                                 my $node = DXCluster->get_exact($call);
 648                                 if ($node) {
 649                                         my $dxchan;
 650                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 651                                                 dbg('chan', "PCPROT: $call connected locally");
 652                                         }
 653                                     if ($node->dxchan != $self) {
 654                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 655                                                 next;
 656                                         }
 657                                         my $rcall = $node->mynode->call;
 658                                         dbg('chan', "PCPROT: already have $call on $rcall");
 659                                         next;
 660                                 }
 661
 662                                 # check for sane parameters
 663                                 next if $ver < 5000; # only works with version 5 software
 664                                 next if length $call < 3; # min 3 letter callsigns
 665
 666                                 # add it to the nodes table and outgoing line
 667                                 $newline .= "$here^$call^$confmode^$ver^";
 668                                 DXNode->new($self, $call, $confmode, $here, $ver);
 669
 670                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 671                                 my $mref = DXMsg::get_busy($call);
 672                                 $mref->stop_msg($call) if $mref;
 673
 674                                 # add this station to the user database, if required (don't remove SSID from nodes)
 675                                 my $user = DXUser->get_current($call);
 676                                 if (!$user) {
 677                                         $user = DXUser->new($call);
 678                                         $user->sort('A');
 679                                         $user->priv(1);                   # I have relented and defaulted nodes
 680                                         $self->{priv} = 1;                # to user RCMDs allowed
 681                                         $user->homenode($call);
 682                                         $user->node($call);
 683                                 }
 684                                 $user->lastin($main::systime) unless DXChannel->get($call);
 685                                 $user->put;
 686                         }
 687
 688                         return if $newline eq "PC19^";
 689
 690                         # add hop count
 691                         $newline .=  get_hops(19) . "^";
 692                         $line = $newline;
 693                         last SWITCH;
 694                 }
 695
 696                 if ($pcno == 20) {              # send local configuration
 697                         $self->send_local_config();
 698                         $self->send(pc22());
 699                         $self->state('normal');
 700                         return;
 701                 }
 702
 703                 if ($pcno == 21) {              # delete a cluster from the list
 704                         my $call = uc $field[1];
 705                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 706                                 my $node = DXCluster->get_exact($call);
 707                                 if ($node) {
 708                                         unless ($node->isa('DXNode')) {
 709                                                 dbg('chan', "PCPROT: $call is not a node");
 710                                                 return;
 711                                         }
 712                                         if ($call eq $self->{call}) {
 713                                                 dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 714                                                 return;
 715                                         }
 716                                         if ($node->dxchan != $self) {
 717                                                 dbg('chan', "PCPROT: $call come in on wrong channel");
 718                                                 return;
 719                                         }
 720                                         my $dxchan;
 721                                         if ($dxchan = DXChannel->get($call)) {
 722                                                 dbg('chan', "PCPROT: $call connected locally");
 723                                                 return;
 724                                         }
 725                                         $node->del();
 726                                 } else {
 727                                         dbg('chan', "PCPROT: $call not in table, dropped");
 728                                         return;
 729                                 }
 730                         } else {
 731                                 dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
 732                                 return;
 733                         }
 734                         last SWITCH;
 735                 }
 736
 737                 if ($pcno == 22) {
 738                         $self->state('normal');
 739                         return;
 740                 }
 741
 742                 if ($pcno == 23 || $pcno == 27) { # WWV info
 743
 744                         # route 'foreign' pc27s
 745                         if ($pcno == 27) {
 746                                 if ($field[8] ne $main::mycall) {
 747                                         $self->route($field[8], $line);
 748                                         return;
 749                                 }
 750                         }
 751
 752                         # do some de-duping
 753                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 754                         my $sfi = unpad($field[3]);
 755                         my $k = unpad($field[4]);
 756                         my $i = unpad($field[5]);
 757                         my ($r) = $field[6] =~ /R=(\d+)/;
 758                         $r = 0 unless $r;
 759                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 760                                 dbg('chan', "PCPROT: WWV Date ($field[1] $field[2]) out of range");
 761                                 return;
 762                         }
 763                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 764                                 dbg('chan', "PCPROT: Dup WWV Spot ignored\n");
 765                                 return;
 766                         }
 767                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 768
 769                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 770
 771                         my $rep;
 772                         eval {
 773                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 774                         };
 775 #                       dbg('local', "Local::wwv2 error $@") if $@;
 776                         return if $rep;
 777
 778                         # DON'T be silly and send on PC27s!
 779                         return if $pcno == 27;
 780
 781                         # broadcast to the eager world
 782                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 783                         return;
 784                 }
 785
 786                 if ($pcno == 24) {              # set here status
 787                         my $call = uc $field[1];
 788                         my $ref = DXCluster->get_exact($call);
 789                         $ref->here($field[2]) if $ref;
 790                         last SWITCH;
 791                 }
 792
 793                 if ($pcno == 25) {      # merge request
 794                         if ($field[1] ne $main::mycall) {
 795                                 $self->route($field[1], $line);
 796                                 return;
 797                         }
 798                         if ($field[2] eq $main::mycall) {
 799                                 dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 800                                 return;
 801                         }
 802
 803                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 804
 805                         # spots
 806                         if ($field[3] > 0) {
 807                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 808                                 my $in;
 809                                 foreach $in (@in) {
 810                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 811                                 }
 812                         }
 813
 814                         # wwv
 815                         if ($field[4] > 0) {
 816                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 817                                 my $in;
 818                                 foreach $in (@in) {
 819                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 820                                 }
 821                         }
 822                         return;
 823                 }
 824
 825                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 826                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 827                                 DXMsg::process($self, $line);
 828                         } else {
 829                                 $self->route($field[1], $line) unless $self->is_clx;
 830                         }
 831                         return;
 832                 }
 833
 834                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 835                         if ($field[1] eq $main::mycall) {
 836                                 my $ref = DXUser->get_current($field[2]);
 837                                 my $cref = DXCluster->get($field[2]);
 838                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 839                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 840                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 841                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 842                                                 my $oldpriv = $self->{priv};
 843                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 844                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 845                                                 $self->{priv} = $oldpriv;
 846                                                 for (@in) {
 847                                                         s/\s*$//og;
 848                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 849                                                         Log('rcmd', 'out', $field[2], $_);
 850                                                 }
 851                                                 delete $self->{remotecmd};
 852                                         } else {
 853                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 854                                         }
 855                                 } else {
 856                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 857                                 }
 858                         } else {
 859                                 my $ref = DXUser->get_current($field[1]);
 860                                 if ($ref && $ref->is_clx) {
 861                                         $self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 862                                 } else {
 863                                         $self->route($field[1], $line);
 864                                 }
 865                         }
 866                         return;
 867                 }
 868
 869                 if ($pcno == 35) {              # remote command replies
 870                         if ($field[1] eq $main::mycall) {
 871                                 my $s = $rcmds{$field[2]};
 872                                 if ($s) {
 873                                         my $dxchan = DXChannel->get($s->{call});
 874                                         $dxchan->send($field[3]) if $dxchan;
 875                                         delete $rcmds{$field[2]} if !$dxchan;
 876                                 } else {
 877                                         # send unsolicited ones to the sysop
 878                                         my $dxchan = DXChannel->get($main::myalias);
 879                                         $dxchan->send($field[3]) if $dxchan;
 880                                 }
 881                         } else {
 882                                 my $ref = DXUser->get_current($field[1]);
 883                                 if ($ref && $ref->is_clx) {
 884                                         $self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 885                                 } else {
 886                                         $self->route($field[1], $line);
 887                                 }
 888                         }
 889                         return;
 890                 }
 891
 892                 # for pc 37 see 44 onwards
 893
 894                 if ($pcno == 38) {              # node connected list from neighbour
 895                         return;
 896                 }
 897
 898                 if ($pcno == 39) {              # incoming disconnect
 899                         if ($field[1] eq $self->{call}) {
 900                                 $self->disconnect(1);
 901                         } else {
 902                                 dbg('chan', "PCPROT: came in on wrong channel");
 903                         }
 904                         return;
 905                 }
 906
 907                 if ($pcno == 41) {              # user info
 908                         # add this station to the user database, if required
 909                         my $user = DXUser->get_current($field[1]);
 910                         $user = DXUser->new($field[1]) if !$user;
 911
 912                         if ($field[2] == 1) {
 913                                 $user->name($field[3]);
 914                         } elsif ($field[2] == 2) {
 915                                 $user->qth($field[3]);
 916                         } elsif ($field[2] == 3) {
 917                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 918                                 $user->lat($lat);
 919                                 $user->long($long);
 920                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 921                         } elsif ($field[2] == 4) {
 922                                 $user->homenode($field[3]);
 923                         }
 924                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 925                         $user->put;
 926                         last SWITCH;
 927                 }
 928                 if ($pcno == 43) {
 929                         last SWITCH;
 930                 }
 931                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 932                         DXDb::process($self, $line);
 933                         return;
 934                 }
 935
 936                 if ($pcno == 50) {              # keep alive/user list
 937                         my $node = DXCluster->get_exact($field[1]);
 938                         if ($node) {
 939                                 return unless $node->isa('DXNode');
 940                                 return unless $node->dxchan == $self;
 941                                 $node->update_users($field[2]);
 942                         }
 943                         last SWITCH;
 944                 }
 945
 946                 if ($pcno == 51) {              # incoming ping requests/answers
 947
 948                         # is it for us?
 949                         if ($field[1] eq $main::mycall) {
 950                                 my $flag = $field[3];
 951                                 if ($flag == 1) {
 952                                         $self->send(pc51($field[2], $field[1], '0'));
 953                                 } else {
 954                                         # it's a reply, look in the ping list for this one
 955                                         my $ref = $pings{$field[2]};
 956                                         if ($ref) {
 957                                                 my $tochan =  DXChannel->get($field[2]);
 958                                                 while (@$ref) {
 959                                                         my $r = shift @$ref;
 960                                                         my $dxchan = DXChannel->get($r->{call});
 961                                                         next unless $dxchan;
 962                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 963                                                         if ($dxchan->is_user) {
 964                                                                 my $s = sprintf "%.2f", $t;
 965                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 966                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 967                                                         } elsif ($dxchan->is_node) {
 968                                                                 if ($tochan) {
 969                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
 970                                                                         push @{$tochan->{pingtime}}, $t;
 971                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 972                                                                         my $st;
 973                                                                         for (@{$tochan->{pingtime}}) {
 974                                                                                 $st += $_;
 975                                                                         }
 976                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 977                                                                 }
 978                                                         }
 979                                                 }
 980                                         }
 981                                 }
 982                         } else {
 983                                 # route down an appropriate thingy
 984                                 $self->route($field[1], $line);
 985                         }
 986                         return;
 987                 }
 988
 989                 if ($pcno == 75) {              # dunno but route it
 990                         if ($field[1] ne $main::mycall) {
 991                                 $self->route($field[1], $line);
 992                         }
 993                         return;
 994                 }
 995
 996                 if ($pcno == 73) {  # WCY broadcasts
 997
 998                         # do some de-duping
 999                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
1000                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
1001                                 dbg('chan', "PCPROT: WCY Date ($field[1] $field[2]) out of range");
1002                                 return;
1003                         }
1004                         @field = map { unpad($_) } @field;
1005                         if (WCY::dup($d,@field[3..7])) {
1006                                 dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
1007                                 return;
1008                         }
1009
1010                         my $wcy = WCY::update($d, @field[2..12]);
1011
1012                         my $rep;
1013                         eval {
1014                                 $rep = Local::wwv($self, @field[1..12]);
1015                         };
1016                         # dbg('local', "Local::wcy error $@") if $@;
1017                         return if $rep;
1018
1019                         # broadcast to the eager world
1020                         send_wcy_spot($self, $line, $d, @field[2..12]);
1021                         return;
1022                 }
1023
1024                 if ($pcno == 84) { # remote commands (incoming)
1025                         if ($field[1] eq $main::mycall) {
1026                                 my $ref = DXUser->get_current($field[2]);
1027                                 my $cref = DXCluster->get($field[2]);
1028                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1029                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1030                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1031                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1032                                                 my $oldpriv = $self->{priv};
1033                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1034                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1035                                                 $self->{priv} = $oldpriv;
1036                                                 for (@in) {
1037                                                         s/\s*$//og;
1038                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1039                                                         Log('rcmd', 'out', $field[2], $_);
1040                                                 }
1041                                                 delete $self->{remotecmd};
1042                                         } else {
1043                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1044                                         }
1045                                 } else {
1046                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1047                                 }
1048                         } else {
1049                                 my $ref = DXUser->get_current($field[1]);
1050                                 if ($ref && $ref->is_clx) {
1051                                         $self->route($field[1], $line);
1052                                 } else {
1053                                         $self->route($field[1], pc34($field[2], $field[1], $field[4]));
1054                                 }
1055                         }
1056                         return;
1057                 }
1058
1059                 if ($pcno == 85) {              # remote command replies
1060                         if ($field[1] eq $main::mycall) {
1061                                 my $dxchan = DXChannel->get($field[3]);
1062                                 if ($dxchan) {
1063                                         $dxchan->send($field[4]);
1064                                 } else {
1065                                         my $s = $rcmds{$field[2]};
1066                                         if ($s) {
1067                                                 $dxchan = DXChannel->get($s->{call});
1068                                                 $dxchan->send($field[4]) if $dxchan;
1069                                                 delete $rcmds{$field[2]} if !$dxchan;
1070                                         } else {
1071                                                 # send unsolicited ones to the sysop
1072                                                 my $dxchan = DXChannel->get($main::myalias);
1073                                                 $dxchan->send($field[4]) if $dxchan;
1074                                         }
1075                                 }
1076                         } else {
1077                                 my $ref = DXUser->get_current($field[1]);
1078                                 if ($ref && $ref->is_clx) {
1079                                         $self->route($field[1], $line);
1080                                 } else {
1081                                         $self->route($field[1], pc35($field[2], $field[1], $field[4]));
1082                                 }
1083                         }
1084                         return;
1085                 }
1086         }
1087
1088         # if get here then rebroadcast the thing with its Hop count decremented (if
1089         # there is one). If it has a hop count and it decrements to zero then don't
1090         # rebroadcast it.
1091         #
1092         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1093         #        REBROADCAST!!!!
1094         #
1095
1096         unless ($self->{isolate}) {
1097                 broadcast_ak1a($line, $self); # send it to everyone but me
1098         }
1099 }
1100
1101 #
1102 # This is called from inside the main cluster processing loop and is used
1103 # for despatching commands that are doing some long processing job
1104 #
1105 sub process
1106 {
1107         my $t = time;
1108         my @dxchan = DXChannel->get_all();
1109         my $dxchan;
1110
1111         foreach $dxchan (@dxchan) {
1112                 next unless $dxchan->is_node();
1113                 next if $dxchan == $me;
1114
1115                 # send a pc50 out on this channel
1116                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1117                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1118                         $dxchan->pc50_t($t);
1119                 }
1120
1121                 # send a ping out on this channel
1122                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1123                         if ($dxchan->{nopings} <= 0) {
1124                                 $dxchan->disconnect;
1125                         } else {
1126                                 addping($main::mycall, $dxchan->call);
1127                                 $dxchan->{nopings} -= 1;
1128                                 $dxchan->{lastping} = $t;
1129                         }
1130                 }
1131         }
1132
1133         my $key;
1134         my $val;
1135         my $cutoff;
1136         if ($main::systime - 3600 > $last_hour) {
1137 #               Spot::process;
1138 #               Geomag::process;
1139 #               AnnTalk::process;
1140                 $last_hour = $main::systime;
1141         }
1142 }
1143
1144 #
1145 # finish up a pc context
1146 #
1147 sub finish
1148 {
1149         my $self = shift;
1150         my $call = $self->call;
1151         my $conn = shift;
1152         my $ref = DXCluster->get_exact($call);
1153
1154         # unbusy and stop and outgoing mail
1155         my $mref = DXMsg::get_busy($call);
1156         $mref->stop_msg($call) if $mref;
1157
1158         # broadcast to all other nodes that all the nodes connected to via me are gone
1159         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1160         my $node;
1161
1162         foreach $node (@gonenodes) {
1163                 next if $node->call eq $call;
1164                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1165                 $node->del();
1166         }
1167
1168         # remove outstanding pings
1169         delete $pings{$call};
1170
1171         # now broadcast to all other ak1a nodes that I have gone
1172         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1173
1174         # I was the last node visited
1175     $self->user->node($main::mycall);
1176
1177         # send info to all logged in thingies
1178         $self->tell_login('logoutn');
1179
1180         Log('DXProt', $call . " Disconnected");
1181         $ref->del() if $ref;
1182 }
1183
1184 #
1185 # some active measures
1186 #
1187 sub send_dx_spot
1188 {
1189         my $self = shift;
1190         my $line = shift;
1191         my @dxchan = DXChannel->get_all();
1192         my $dxchan;
1193
1194         # send it if it isn't the except list and isn't isolated and still has a hop count
1195         # taking into account filtering and so on
1196         foreach $dxchan (@dxchan) {
1197                 my $routeit;
1198                 my ($filter, $hops);
1199
1200                 if ($dxchan->{spotsfilter}) {
1201                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1202                         next unless $filter;
1203                 }
1204
1205                 if ($dxchan->is_node) {
1206                         next if $dxchan == $self;
1207                         if ($hops) {
1208                                 $routeit = $line;
1209                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1210                         } else {
1211                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1212                                 next unless $routeit;
1213                         }
1214                         if ($filter) {
1215                                 $dxchan->send($routeit) if $routeit;
1216                         } else {
1217                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1218                         }
1219                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1220                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1221                         $buf .= "\a\a" if $dxchan->{beep};
1222                         $buf =~ s/\%5E/^/g;
1223                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1224                                 $dxchan->send($buf);
1225                         } else {
1226                                 $dxchan->delay($buf);
1227                         }
1228                 }
1229         }
1230 }
1231
1232 sub send_wwv_spot
1233 {
1234         my $self = shift;
1235         my $line = shift;
1236         my @dxchan = DXChannel->get_all();
1237         my $dxchan;
1238         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1239         my @dxcc = Prefix::extract($_[7]);
1240         if (@dxcc > 0) {
1241                 $wwv_dxcc = $dxcc[1]->dxcc;
1242                 $wwv_itu = $dxcc[1]->itu;
1243                 $wwv_cq = $dxcc[1]->cq;
1244         }
1245         @dxcc = Prefix::extract($_[8]);
1246         if (@dxcc > 0) {
1247                 $org_dxcc = $dxcc[1]->dxcc;
1248                 $org_itu = $dxcc[1]->itu;
1249                 $org_cq = $dxcc[1]->cq;
1250         }
1251
1252         # send it if it isn't the except list and isn't isolated and still has a hop count
1253         # taking into account filtering and so on
1254         foreach $dxchan (@dxchan) {
1255                 my $routeit;
1256                 my ($filter, $hops);
1257
1258                 if ($dxchan->{wwvfilter}) {
1259                         ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1260                          next unless $filter;
1261                 }
1262                 if ($dxchan->is_node) {
1263                         next if $dxchan == $self;
1264                         if ($hops) {
1265                                 $routeit = $line;
1266                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1267                         } else {
1268                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1269                                 next unless $routeit;
1270                         }
1271                         if ($filter) {
1272                                 $dxchan->send($routeit) if $routeit;
1273                         } else {
1274                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1275
1276                         }
1277                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1278                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1279                         $buf .= "\a\a" if $dxchan->{beep};
1280                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1281                                 $dxchan->send($buf);
1282                         } else {
1283                                 $dxchan->delay($buf);
1284                         }
1285                 }
1286         }
1287 }
1288
1289 sub send_wcy_spot
1290 {
1291         my $self = shift;
1292         my $line = shift;
1293         my @dxchan = DXChannel->get_all();
1294         my $dxchan;
1295         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1296         my @dxcc = Prefix::extract($_[11]);
1297         if (@dxcc > 0) {
1298                 $wcy_dxcc = $dxcc[1]->dxcc;
1299                 $wcy_itu = $dxcc[1]->itu;
1300                 $wcy_cq = $dxcc[1]->cq;
1301         }
1302         @dxcc = Prefix::extract($_[12]);
1303         if (@dxcc > 0) {
1304                 $org_dxcc = $dxcc[1]->dxcc;
1305                 $org_itu = $dxcc[1]->itu;
1306                 $org_cq = $dxcc[1]->cq;
1307         }
1308
1309         # send it if it isn't the except list and isn't isolated and still has a hop count
1310         # taking into account filtering and so on
1311         foreach $dxchan (@dxchan) {
1312                 my $routeit;
1313                 my ($filter, $hops);
1314
1315                 if ($dxchan->{wcyfilter}) {
1316                         ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1317                          next unless $filter;
1318                 }
1319                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1320                         next if $dxchan == $self;
1321                         if ($hops) {
1322                                 $routeit = $line;
1323                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1324                         } else {
1325                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1326                                 next unless $routeit;
1327                         }
1328                         if ($filter) {
1329                                 $dxchan->send($routeit) if $routeit;
1330                         } else {
1331                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1332                         }
1333                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1334                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1335                         $buf .= "\a\a" if $dxchan->{beep};
1336                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1337                                 $dxchan->send($buf);
1338                         } else {
1339                                 $dxchan->delay($buf);
1340                         }
1341                 }
1342         }
1343 }
1344
1345 # send an announce
1346 sub send_announce
1347 {
1348         my $self = shift;
1349         my $line = shift;
1350         my @dxchan = DXChannel->get_all();
1351         my $dxchan;
1352         my $text = unpad($_[2]);
1353         my $target;
1354         my $to = 'To ';
1355
1356         if ($_[3] eq '*') {     # sysops
1357                 $target = "SYSOP";
1358         } elsif ($_[3] gt ' ') { # speciality list handling
1359                 my ($name) = split /\./, $_[3];
1360                 $target = "$name"; # put the rest in later (if bothered)
1361         }
1362
1363         if ($_[5] eq '1') {
1364                 $target = "WX";
1365                 $to = '';
1366         }
1367         $target = "ALL" if !$target;
1368
1369         Log('ann', $target, $_[0], $text);
1370
1371         # obtain country codes etc
1372         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1373         my @dxcc = Prefix::extract($_[0]);
1374         if (@dxcc > 0) {
1375                 $ann_dxcc = $dxcc[1]->dxcc;
1376                 $ann_itu = $dxcc[1]->itu;
1377                 $ann_cq = $dxcc[1]->cq;
1378         }
1379         @dxcc = Prefix::extract($_[4]);
1380         if (@dxcc > 0) {
1381                 $org_dxcc = $dxcc[1]->dxcc;
1382                 $org_itu = $dxcc[1]->itu;
1383                 $org_cq = $dxcc[1]->cq;
1384         }
1385
1386         # send it if it isn't the except list and isn't isolated and still has a hop count
1387         # taking into account filtering and so on
1388         foreach $dxchan (@dxchan) {
1389                 my $routeit;
1390                 my ($filter, $hops);
1391
1392                 if ($dxchan->{annfilter}) {
1393                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1394                         next unless $filter;
1395                 }
1396                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1397                         next if $dxchan == $self;
1398                         if ($hops) {
1399                                 $routeit = $line;
1400                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1401                         } else {
1402                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1403                                 next unless $routeit;
1404                         }
1405                         if ($filter) {
1406                                 $dxchan->send($routeit) if $routeit;
1407                         } else {
1408                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1409
1410                         }
1411                 } elsif ($dxchan->is_user) {
1412                         unless ($dxchan->{ann}) {
1413                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1414                         }
1415                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1416                         my $buf = "$to$target de $_[0]: $text";
1417                         $buf =~ s/\%5E/^/g;
1418                         $buf .= "\a\a" if $dxchan->{beep};
1419                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1420                                 $dxchan->send($buf);
1421                         } else {
1422                                 $dxchan->delay($buf);
1423                         }
1424                 }
1425         }
1426 }
1427
1428 sub send_local_config
1429 {
1430         my $self = shift;
1431         my $n;
1432         my @nodes;
1433         my @localnodes;
1434         my @remotenodes;
1435
1436         # send our nodes
1437         if ($self->{isolate}) {
1438                 @localnodes = (DXCluster->get_exact($main::mycall));
1439         } else {
1440                 # create a list of all the nodes that are not connected to this connection
1441                 # and are not themselves isolated, this to make sure that isolated nodes
1442         # don't appear outside of this node
1443                 @nodes = DXNode::get_all();
1444                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1445                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1446                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1447                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1448                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1449                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1450         }
1451
1452         my @s = $me->pc19(@localnodes, @remotenodes);
1453         for (@s) {
1454                 my $routeit = adjust_hops($self, $_);
1455                 $self->send($routeit) if $routeit;
1456         }
1457
1458         # get all the users connected on the above nodes and send them out
1459         foreach $n (@localnodes, @remotenodes) {
1460                 my @users = values %{$n->list};
1461                 my @s = pc16($n, @users);
1462                 for (@s) {
1463                         my $routeit = adjust_hops($self, $_);
1464                         $self->send($routeit) if $routeit;
1465                 }
1466         }
1467 }
1468
1469 #
1470 # route a message down an appropriate interface for a callsign
1471 #
1472 # is called route(to, pcline);
1473 #
1474 sub route
1475 {
1476         my ($self, $call, $line) = @_;
1477
1478         if (ref $self && $call eq $self->{call}) {
1479                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1480                 return;
1481         }
1482
1483         # always send it down the local interface if available
1484         my $dxchan = DXChannel->get($call);
1485         unless ($dxchan) {
1486                 my $cl = DXCluster->get_exact($call);
1487                 $dxchan = $cl->dxchan if $cl;
1488                 if (ref $dxchan) {
1489                         if (ref $self && $dxchan eq $self) {
1490                                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1491                                 return;
1492                         }
1493                 }
1494         }
1495         if ($dxchan) {
1496                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1497                 if ($routeit) {
1498                         $dxchan->send($routeit);
1499                 }
1500         } else {
1501                 dbg('chan', "PCPROT: No route available, dropped");
1502         }
1503 }
1504
1505 # broadcast a message to all clusters taking into account isolation
1506 # [except those mentioned after buffer]
1507 sub broadcast_ak1a
1508 {
1509         my $s = shift;                          # the line to be rebroadcast
1510         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1511         my @dxchan = DXChannel::get_all_nodes();
1512         my $dxchan;
1513
1514         # send it if it isn't the except list and isn't isolated and still has a hop count
1515         foreach $dxchan (@dxchan) {
1516                 next if grep $dxchan == $_, @except;
1517                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1518                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1519         }
1520 }
1521
1522 # broadcast a message to all clusters ignoring isolation
1523 # [except those mentioned after buffer]
1524 sub broadcast_all_ak1a
1525 {
1526         my $s = shift;                          # the line to be rebroadcast
1527         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1528         my @dxchan = DXChannel::get_all_nodes();
1529         my $dxchan;
1530
1531         # send it if it isn't the except list and isn't isolated and still has a hop count
1532         foreach $dxchan (@dxchan) {
1533                 next if grep $dxchan == $_, @except;
1534                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1535                 $dxchan->send($routeit);
1536         }
1537 }
1538
1539 # broadcast to all users
1540 # storing the spot or whatever until it is in a state to receive it
1541 sub broadcast_users
1542 {
1543         my $s = shift;                          # the line to be rebroadcast
1544         my $sort = shift;           # the type of transmission
1545         my $fref = shift;           # a reference to an object to filter on
1546         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1547         my @dxchan = DXChannel::get_all_users();
1548         my $dxchan;
1549         my @out;
1550
1551         foreach $dxchan (@dxchan) {
1552                 next if grep $dxchan == $_, @except;
1553                 push @out, $dxchan;
1554         }
1555         broadcast_list($s, $sort, $fref, @out);
1556 }
1557
1558 # broadcast to a list of users
1559 sub broadcast_list
1560 {
1561         my $s = shift;
1562         my $sort = shift;
1563         my $fref = shift;
1564         my $dxchan;
1565
1566         foreach $dxchan (@_) {
1567                 my $filter = 1;
1568
1569                 if ($sort eq 'dx') {
1570                     next unless $dxchan->{dx};
1571                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1572                         next unless $filter;
1573                 }
1574                 next if $sort eq 'ann' && !$dxchan->{ann};
1575                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1576                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1577                 next if $sort eq 'wx' && !$dxchan->{wx};
1578
1579                 $s =~ s/\a//og unless $dxchan->{beep};
1580
1581                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1582                         $dxchan->send($s);
1583                 } else {
1584                         $dxchan->delay($s);
1585                 }
1586         }
1587 }
1588
1589
1590 #
1591 # obtain the hops from the list for this callsign and pc no
1592 #
1593
1594 sub get_hops
1595 {
1596         my $pcno = shift;
1597         my $hops = $DXProt::hopcount{$pcno};
1598         $hops = $DXProt::def_hopcount if !$hops;
1599         return "H$hops";
1600 }
1601
1602 #
1603 # adjust the hop count on a per node basis using the user loadable
1604 # hop table if available or else decrement an existing one
1605 #
1606
1607 sub adjust_hops
1608 {
1609         my $self = shift;
1610         my $s = shift;
1611         my $call = $self->{call};
1612         my $hops;
1613
1614         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1615                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1616                 confess "$call called adjust_hops with '$s'" unless $pcno;
1617                 my $ref = $nodehops{$call} if %nodehops;
1618                 if ($ref) {
1619                         my $newhops = $ref->{$pcno};
1620                         return "" if defined $newhops && $newhops == 0;
1621                         $newhops = $ref->{default} unless $newhops;
1622                         return "" if defined $newhops && $newhops == 0;
1623                         $newhops = $hops if !$newhops;
1624                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1625                 } else {
1626                         # simply decrement it
1627                         $hops--;
1628                         return "" if !$hops;
1629                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1630                 }
1631         }
1632         return $s;
1633 }
1634
1635 #
1636 # load hop tables
1637 #
1638 sub load_hops
1639 {
1640         my $self = shift;
1641         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1642         do "$main::data/hop_table.pl";
1643         return $@ if $@;
1644         return 0;
1645 }
1646
1647
1648 # add a ping request to the ping queues
1649 sub addping
1650 {
1651         my ($from, $to) = @_;
1652         my $ref = $pings{$to} || [];
1653         my $r = {};
1654         $r->{call} = $from;
1655         $r->{t} = [ gettimeofday ];
1656         route(undef, $to, pc51($to, $main::mycall, 1));
1657         push @$ref, $r;
1658         $pings{$to} = $ref;
1659 }
1660
1661 # add a rcmd request to the rcmd queues
1662 sub addrcmd
1663 {
1664         my ($self, $to, $cmd) = @_;
1665
1666         my $r = {};
1667         $r->{call} = $self->{call};
1668         $r->{t} = $main::systime;
1669         $r->{cmd} = $cmd;
1670         $rcmds{$to} = $r;
1671
1672         my $ref = DXCluster->get_exact($to);
1673     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1674                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1675         } else {
1676                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1677         }
1678 }
1679
1680 sub disconnect
1681 {
1682         my $self = shift;
1683         my $nopc39 = shift;
1684
1685         if ($self->{conn} && !$nopc39) {
1686                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1687         }
1688
1689         $self->SUPER::disconnect;
1690 }
1691
1692
1693 #
1694 # send a talk message to this thingy
1695 #
1696 sub talk
1697 {
1698         my ($self, $from, $to, $via, $line) = @_;
1699
1700         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1701         $self->send(DXProt::pc10($from, $to, $via, $line));
1702         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1703 }
1704 1;
1705 __END__