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 DXProtVars;
  19 use DXCommandmode;
  20 use DXLog;
  21 use Spot;
  22 use DXProtout;
  23 use DXDebug;
  24 use Filter;
  25 use Local;
  26 use DXDb;
  27 use AnnTalk;
  28 use Geomag;
  29 use WCY;
  30 use Time::HiRes qw(gettimeofday tv_interval);
  31 use BadWords;
  32 use DXHash;
  33 use Route;
  34 use Route::Node;
  35
  36 use strict;
  37 use vars qw($me $pc11_max_age $pc23_max_age
  38                         $last_hour $last10 %emph  %pings %rcmds
  39                         %nodehops $baddx $badspotter $badnode $censorpc
  40                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  41
  42 $me = undef;                                    # the channel id for this cluster
  43 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  44 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  45
  46 $last_hour = time;                              # last time I did an hourly periodic update
  47 %pings = ();                    # outstanding ping requests outbound
  48 %rcmds = ();                    # outstanding rcmd requests outbound
  49 %nodehops = ();                 # node specific hop control
  50 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  51                                                                 # loads of 'bad things'
  52 $baddx = new DXHash "baddx";
  53 $badspotter = new DXHash "badspotter";
  54 $badnode = new DXHash "badnode";
  55 $last10 = time;
  56
  57 @checklist =
  58 (
  59  [ qw(c c m bp bc c) ],                 # pc10
  60  [ qw(f m d t m c c h) ],               # pc11
  61  [ qw(c bc m bp bm p h) ],              # pc12
  62  [ qw(c h) ],                                   #
  63  [ qw(c h) ],                                   #
  64  [ qw(c m h) ],                                 #
  65  undef ,                                                # pc16 has to be validated manually
  66  [ qw(c c h) ],                                 # pc17
  67  [ qw(m n) ],                                   # pc18
  68  undef ,                                                # pc19 has to be validated manually
  69  undef ,                                                # pc20 no validation
  70  [ qw(c m h) ],                                 # pc21
  71  undef ,                                                # pc22 no validation
  72  [ qw(d n n n n m c c h) ],             # pc23
  73  [ qw(c p h) ],                                 # pc24
  74  [ qw(c c n n) ],                               # pc25
  75  [ qw(f m d t m c c bc) ],              # pc26
  76  [ qw(d n n n n m c c bc) ],    # pc27
  77  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  78  [ qw(c c n m) ],                               # pc29
  79  [ qw(c c n) ],                                 # pc30
  80  [ qw(c c n) ],                                 # pc31
  81  [ qw(c c n) ],                                 # pc32
  82  [ qw(c c n) ],                                 # pc33
  83  [ qw(c c m) ],                                 # pc34
  84  [ qw(c c m) ],                                 # pc35
  85  [ qw(c c m) ],                                 # pc36
  86  [ qw(c c n m) ],                               # pc37
  87  undef,                                                 # pc38 not interested
  88  [ qw(c m) ],                                   # pc39
  89  [ qw(c c m p n) ],                             # pc40
  90  [ qw(c n m h) ],                               # pc41
  91  [ qw(c c n) ],                                 # pc42
  92  undef,                                                 # pc43 don't handle it
  93  [ qw(c c n m m c) ],                   # pc44
  94  [ qw(c c n m) ],                               # pc45
  95  [ qw(c c n) ],                                 # pc46
  96  undef,                                                 # pc47
  97  undef,                                                 # pc48
  98  [ qw(c m h) ],                                 # pc49
  99  [ qw(c n h) ],                                 # pc50
 100  [ qw(c c n) ],                                 # pc51
 101  undef,
 102  undef,
 103  undef,
 104  undef,
 105  undef,
 106  undef,
 107  undef,
 108  undef,
 109  undef,                                                 # pc60
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,
 115  undef,
 116  undef,
 117  undef,
 118  undef,
 119  undef,                                                 # pc70
 120  undef,
 121  undef,
 122  [ qw(d n n n n n n m m m c c h) ],     # pc73
 123  undef,
 124  undef,
 125  undef,
 126  undef,
 127  undef,
 128  undef,
 129  undef,                                                 # pc80
 130  undef,
 131  undef,
 132  undef,
 133  [ qw(c c c m) ],                               # pc84
 134  [ qw(c c c m) ],                               # pc85
 135 );
 136
 137 # use the entry in the check list to check the field list presented
 138 # return OK if line NOT in check list (for now)
 139 sub check
 140 {
 141         my $n = shift;
 142         $n -= 10;
 143         return 0 if $n < 0 || $n > @checklist;
 144         my $ref = $checklist[$n];
 145         return 0 unless ref $ref;
 146
 147         my $i;
 148         shift;    # not interested in the first field
 149         for ($i = 0; $i < @$ref; $i++) {
 150                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 151                 return 0 unless $act;
 152                 next if $blank && $_[$i] =~ /^[ \*]$/;
 153                 if ($act eq 'c') {
 154                         return $i+1 unless is_callsign($_[$i]);
 155                 } elsif ($act eq 'm') {
 156                         return $i+1 unless is_pctext($_[$i]);
 157                 } elsif ($act eq 'p') {
 158                         return $i+1 unless is_pcflag($_[$i]);
 159                 } elsif ($act eq 'f') {
 160                         return $i+1 unless is_freq($_[$i]);
 161                 } elsif ($act eq 'n') {
 162                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 163                 } elsif ($act eq 'h') {
 164                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 165                 } elsif ($act eq 'd') {
 166                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 167                 } elsif ($act eq 't') {
 168                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 169                 }
 170         }
 171         return 0;
 172 }
 173
 174 sub init
 175 {
 176         my $user = DXUser->get($main::mycall);
 177         $DXProt::myprot_version += $main::version*100;
 178         $me = DXProt->new($main::mycall, 0, $user);
 179         $me->{here} = 1;
 180         $me->{state} = "indifferent";
 181         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 182         confess $@ if $@;
 183         $me->{sort} = 'S';    # S for spider
 184         $me->{priv} = 9;
 185 #       $Route::Node::me->adddxchan($me);
 186 }
 187
 188 #
 189 # obtain a new connection this is derived from dxchannel
 190 #
 191
 192 sub new
 193 {
 194         my $self = DXChannel::alloc(@_);
 195
 196         # add this node to the table, the values get filled in later
 197         my $pkg = shift;
 198         my $call = shift;
 199         $main::routeroot->add($call, '0000', Route::here(1)) if $call ne $main::mycall;
 200
 201         return $self;
 202 }
 203
 204 # this is how a pc connection starts (for an incoming connection)
 205 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 206 # all the crap that comes between).
 207 sub start
 208 {
 209         my ($self, $line, $sort) = @_;
 210         my $call = $self->{call};
 211         my $user = $self->{user};
 212
 213         # remember type of connection
 214         $self->{consort} = $line;
 215         $self->{outbound} = $sort eq 'O';
 216         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 217         $self->{lang} = $user->lang || 'en';
 218         $self->{isolate} = $user->{isolate};
 219         $self->{consort} = $line;       # save the connection type
 220         $self->{here} = 1;
 221
 222         # get the output filters
 223         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 224         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 225         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 226         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 227         $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) ;
 228
 229
 230         # get the INPUT filters (these only pertain to Clusters)
 231         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 232         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 233         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 234         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 235         $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1);
 236
 237         # set unbuffered and no echo
 238         $self->send_now('B',"0");
 239         $self->send_now('E',"0");
 240
 241         # ping neighbour node stuff
 242         my $ping = $user->pingint;
 243         $ping = 5*60 unless defined $ping;
 244         $self->{pingint} = $ping;
 245         $self->{nopings} = $user->nopings || 2;
 246         $self->{pingtime} = [ ];
 247         $self->{pingave} = 0;
 248
 249         # send initialisation string
 250         unless ($self->{outbound}) {
 251                 $self->send(pc18());
 252                 $self->{lastping} = $main::systime;
 253         } else {
 254                 $self->{lastping} = $main::systime + ($self->pingint / 2);
 255         }
 256         $self->state('init');
 257         $self->{pc50_t} = $main::systime;
 258
 259         # send info to all logged in thingies
 260         $self->tell_login('loginn');
 261
 262         Log('DXProt', "$call connected");
 263 }
 264
 265 #
 266 # This is the normal pcxx despatcher
 267 #
 268 sub normal
 269 {
 270         my ($self, $line) = @_;
 271         my @field = split /\^/, $line;
 272         return unless @field;
 273
 274         pop @field if $field[-1] eq '~';
 275
 276 #       print join(',', @field), "\n";
 277
 278         # ignore any lines that don't start with PC
 279         return if !$field[0] =~ /^PC/;
 280
 281         # process PC frames
 282         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 283         return unless $pcno;
 284         return if $pcno < 10 || $pcno > 99;
 285
 286         # check for and dump bad protocol messages
 287         my $n = check($pcno, @field);
 288         if ($n) {
 289                 dbg('chan', "PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 290                 return;
 291         }
 292
 293         # local processing 1
 294         my $pcr;
 295         eval {
 296                 $pcr = Local::pcprot($self, $pcno, @field);
 297         };
 298 #       dbg('local', "Local::pcprot error $@") if $@;
 299         return if $pcr;
 300
 301  SWITCH: {
 302                 if ($pcno == 10) {              # incoming talk
 303
 304                         # will we allow it at all?
 305                         if ($censorpc) {
 306                                 my @bad;
 307                                 if (@bad = BadWords::check($field[3])) {
 308                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 309                                         return;
 310                                 }
 311                         }
 312
 313                         # is it for me or one of mine?
 314                         my ($to, $via, $call, $dxchan);
 315                         if ($field[5] gt ' ') {
 316                                 $call = $via = $field[2];
 317                                 $to = $field[5];
 318                         } else {
 319                                 $call = $to = $field[2];
 320                         }
 321                         $dxchan = DXChannel->get($call);
 322                         if ($dxchan && $dxchan->is_user) {
 323                                 $field[3] =~ s/\%5E/^/g;
 324                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 325                         } else {
 326                                 $self->route($field[2], $line); # relay it on its way
 327                         }
 328                         return;
 329                 }
 330
 331                 if ($pcno == 11 || $pcno == 26) { # dx spot
 332
 333                         # route 'foreign' pc26s
 334                         if ($pcno == 26) {
 335                                 if ($field[7] ne $main::mycall) {
 336                                         $self->route($field[7], $line);
 337                                         return;
 338                                 }
 339                         }
 340
 341                         # if this is a 'nodx' node then ignore it
 342                         if ($badnode->in($field[7])) {
 343                                 dbg('chan', "PCPROT: Bad Node, dropped");
 344                                 return;
 345                         }
 346
 347                         # if this is a 'bad spotter' user then ignore it
 348                         if ($badspotter->in($field[6])) {
 349                                 dbg('chan', "PCPROT: Bad Spotter, dropped");
 350                                 return;
 351                         }
 352
 353                         # convert the date to a unix date
 354                         my $d = cltounix($field[3], $field[4]);
 355                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 356                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 357                                 dbg('chan', "PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 358                                 return;
 359                         }
 360
 361                         # is it 'baddx'
 362                         if ($baddx->in($field[2])) {
 363                                 dbg('chan', "PCPROT: Bad DX spot, ignored");
 364                                 return;
 365                         }
 366
 367                         # do some de-duping
 368                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 369                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 370                         if ($field[2] =~ /BUST\w*$/) {
 371                                 dbg('chan', "PCPROT: useless 'BUSTED' spot");
 372                                 return;
 373                         }
 374                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 375                                 dbg('chan', "PCPROT: Duplicate Spot ignored\n");
 376                                 return;
 377                         }
 378                         if ($censorpc) {
 379                                 my @bad;
 380                                 if (@bad = BadWords::check($field[5])) {
 381                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 382                                         return;
 383                                 }
 384                         }
 385
 386                         my @spot = Spot::prepare($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 387                         # global spot filtering on INPUT
 388                         if ($self->{inspotsfilter}) {
 389                                 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
 390                                 unless ($filter) {
 391                                         dbg('chan', "PCPROT: Rejected by filter");
 392                                         return;
 393                                 }
 394                         }
 395
 396                         # add it
 397                         Spot::add(@spot);
 398
 399             #
 400                         # @spot at this point contains:-
 401             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 402                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 403                         # you should be able to route on any of these
 404             #
 405
 406                         # fix up qra locators of known users
 407                         my $user = DXUser->get_current($spot[4]);
 408                         if ($user) {
 409                                 my $qra = $user->qra;
 410                                 unless ($qra && DXBearing::is_qra($qra)) {
 411                                         my $lat = $user->lat;
 412                                         my $long = $user->long;
 413                                         if (defined $lat && defined $long) {
 414                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 415                                                 $user->put;
 416                                         }
 417                                 }
 418
 419                                 # send a remote command to a distant cluster if it is visible and there is no
 420                                 # qra locator and we havn't done it for a month.
 421
 422                                 unless ($user->qra) {
 423                                         my $node;
 424                                         my $to = $user->homenode;
 425                                         my $last = $user->lastoper || 0;
 426                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = Route::Node::get($to)) ) {
 427                                                 my $cmd = "forward/opernam $spot[4]";
 428                                                 # send the rcmd but we aren't interested in the replies...
 429                                                 my $dxchan = $node->dxchan;
 430                                                 if ($dxchan && $dxchan->is_clx) {
 431                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 432                                                 } else {
 433                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 434                                                 }
 435                                                 if ($to ne $field[7]) {
 436                                                         $to = $field[7];
 437                                                         $node = Route::Node::get($to);
 438                                                         if ($node) {
 439                                                                 $dxchan = $node->dxchan;
 440                                                                 if ($dxchan && $dxchan->is_clx) {
 441                                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 442                                                                 } else {
 443                                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 444                                                                 }
 445                                                         }
 446                                                 }
 447                                                 $user->lastoper($main::systime);
 448                                                 $user->put;
 449                                         }
 450                                 }
 451                         }
 452
 453                         # local processing
 454                         my $r;
 455                         eval {
 456                                 $r = Local::spot($self, @spot);
 457                         };
 458 #                       dbg('local', "Local::spot1 error $@") if $@;
 459                         return if $r;
 460
 461                         # DON'T be silly and send on PC26s!
 462                         return if $pcno == 26;
 463
 464                         # send out the filtered spots
 465                         send_dx_spot($self, $line, @spot) if @spot;
 466                         return;
 467                 }
 468
 469                 if ($pcno == 12) {              # announces
 470                         # announce duplicate checking
 471                         $field[3] =~ s/^\s+//;  # remove leading blanks
 472                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 473                                 dbg('chan', "PCPROT: Duplicate Announce ignored");
 474                                 return;
 475                         }
 476
 477                         if ($censorpc) {
 478                                 my @bad;
 479                                 if (@bad = BadWords::check($field[3])) {
 480                                         dbg('chan', "PCPROT: Bad words: @bad, dropped" );
 481                                         return;
 482                                 }
 483                         }
 484
 485                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 486
 487                                 # global ann filtering on INPUT
 488                                 if ($self->{inannfilter}) {
 489                                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
 490                                         my @dxcc = Prefix::extract($field[1]);
 491                                         if (@dxcc > 0) {
 492                                                 $ann_dxcc = $dxcc[1]->dxcc;
 493                                                 $ann_itu = $dxcc[1]->itu;
 494                                                 $ann_cq = $dxcc[1]->cq();
 495                                         }
 496                                         @dxcc = Prefix::extract($field[5]);
 497                                         if (@dxcc > 0) {
 498                                                 $org_dxcc = $dxcc[1]->dxcc;
 499                                                 $org_itu = $dxcc[1]->itu;
 500                                                 $org_cq = $dxcc[1]->cq();
 501                                         }
 502                                         my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
 503                                                                                                         $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 504                                         unless ($filter) {
 505                                                 dbg('chan', "PCPROT: Rejected by filter");
 506                                                 return;
 507                                         }
 508                                 }
 509
 510                                 # send it
 511                                 $self->send_announce($line, @field[1..6]);
 512                         } else {
 513                                 $self->route($field[2], $line);
 514                         }
 515
 516                         return;
 517                 }
 518
 519                 if ($pcno == 13) {
 520                         last SWITCH;
 521                 }
 522                 if ($pcno == 14) {
 523                         last SWITCH;
 524                 }
 525                 if ($pcno == 15) {
 526                         last SWITCH;
 527                 }
 528
 529                 if ($pcno == 16) {              # add a user
 530
 531                         # general checks
 532                         my $dxchan;
 533                         my $ncall = $field[1];
 534                         my $newline = "PC16^";
 535
 536                         if ($ncall eq $main::mycall) {
 537                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 538                                 return;
 539                         }
 540                         $dxchan = DXChannel->get($ncall);
 541                         if ($dxchan && $dxchan ne $self) {
 542                                 dbg('chan', "PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!");
 543                                 return;
 544                         }
 545                         my $parent = Route::Node::get($ncall);
 546                         unless ($parent) {
 547                                 dbg('chan', "PCPROT: Node $ncall not in config");
 548                                 return;
 549                         }
 550                         my $i;
 551                         my @rout;
 552                         for ($i = 2; $i < $#field; $i++) {
 553                                 my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 554                                 next unless $call && $conf && defined $here && is_callsign($call);
 555                                 $conf = $conf eq '*';
 556
 557                                 push @rout, $parent->add_user($call, Route::here($here)|Route::conf($conf));
 558
 559                                 # add this station to the user database, if required
 560                                 $call =~ s/-\d+$//o;        # remove ssid for users
 561                                 my $user = DXUser->get_current($call);
 562                                 $user = DXUser->new($call) if !$user;
 563                                 $user->homenode($parent->call) if !$user->homenode;
 564                                 $user->node($parent->call);
 565                                 $user->lastin($main::systime) unless DXChannel->get($call);
 566                                 $user->put;
 567                         }
 568
 569
 570                         # queue up any messages (look for privates only)
 571                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 572
 573                         dbg('route', "B/C PC16 on $ncall for: " . join(',', map{$_->call} @rout)) if @rout;
 574                         $self->route_pc16($parent, @rout) if @rout;
 575                         return;
 576                 }
 577
 578                 if ($pcno == 17) {              # remove a user
 579                         my $dxchan;
 580                         my $ncall = $field[2];
 581                         if ($ncall eq $main::mycall) {
 582                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 583                                 return;
 584                         }
 585                         $dxchan = DXChannel->get($ncall);
 586                         if ($dxchan && $dxchan ne $self) {
 587                                 dbg('chan', "PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!");
 588                                 return;
 589                         }
 590                         my $parent = Route::Node::get($ncall);
 591                         unless ($parent) {
 592                                 dbg('chan', "PCPROT: Route::Node $ncall not in config");
 593                                 return;
 594                         }
 595                         my @rout = $parent->del_user($field[1]);
 596                         dbg('route', "B/C PC17 on $ncall for: $field[1]");
 597                         $self->route_pc17($parent, @rout) if @rout;
 598                         return;
 599                 }
 600
 601                 if ($pcno == 18) {              # link request
 602                         $self->state('init');
 603
 604                         # first clear out any nodes on this dxchannel
 605                         my $parent = Route::Node::get($self->{call});
 606                         my @rout;
 607                         for ($parent->nodes) {
 608                                 my $r = Route::Node::get($_);
 609                                 push @rout, $r->del_node if $r;
 610                         }
 611                         $self->route_pc21(@rout, $parent);
 612                         $self->send_local_config();
 613                         $self->send(pc20());
 614                         return;             # we don't pass these on
 615                 }
 616
 617                 if ($pcno == 19) {              # incoming cluster list
 618                         my $i;
 619                         my $newline = "PC19^";
 620
 621                         # new routing list
 622                         my @rout;
 623                         my $parent = Route::Node::get($self->{call});
 624
 625                         # parse the PC19
 626                         for ($i = 1; $i < $#field-1; $i += 4) {
 627                                 my $here = $field[$i];
 628                                 my $call = uc $field[$i+1];
 629                                 my $conf = $field[$i+2];
 630                                 my $ver = $field[$i+3];
 631                                 next unless defined $here && defined $conf && is_callsign($call);
 632                                 # check for sane parameters
 633                                 $ver = 5000 if $ver eq '0000';
 634                                 next if $ver < 5000; # only works with version 5 software
 635                                 next if length $call < 3; # min 3 letter callsigns
 636
 637                                 # update it if required
 638                                 my $r;
 639                                 if ($parent->call eq $call && !$parent->version) {
 640                                         $parent->version($ver);
 641                                         $parent->flags(Route::here($here)|Route::conf($conf));
 642                                         push @rout, $parent;
 643                                 } elsif ($parent->call ne $call) {
 644                                         next if $call eq $main::mycall || $call eq $self->{call};
 645
 646                                         my $r = $parent->add($call, $ver, Route::here($here)|Route::conf($conf));
 647                                         push @rout, $r if $r;
 648                                 } else {
 649                                         $r = Route::Node::get($call);
 650                                         if ($r && (!$r->version || $r->version eq '0000')) {
 651                                                 $r->version($ver);
 652                                                 $r->flags(Route::here($here)|Route::conf($conf));
 653                                                 push @rout, $r;
 654                                         }
 655                                 }
 656
 657                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 658                                 my $mref = DXMsg::get_busy($call);
 659                                 $mref->stop_msg($call) if $mref;
 660
 661                                 # add this station to the user database, if required (don't remove SSID from nodes)
 662                                 my $user = DXUser->get_current($call);
 663                                 if (!$user) {
 664                                         $user = DXUser->new($call);
 665                                         $user->sort('A');
 666                                         $user->priv(1);                   # I have relented and defaulted nodes
 667                                         $self->{priv} = 1;                # to user RCMDs allowed
 668                                         $user->homenode($call);
 669                                         $user->node($call);
 670                                 }
 671                                 $user->lastin($main::systime) unless DXChannel->get($call);
 672                                 $user->put;
 673                         }
 674
 675                         dbg('route', "B/C PC19 for: " . join(',', map{$_->call} @rout)) if @rout;
 676
 677                         $self->route_pc19(@rout) if @rout;
 678                         return;
 679                 }
 680
 681                 if ($pcno == 20) {              # send local configuration
 682                         $self->send_local_config();
 683                         $self->send(pc22());
 684                         $self->state('normal');
 685                         return;
 686                 }
 687
 688                 if ($pcno == 21) {              # delete a cluster from the list
 689                         my $call = uc $field[1];
 690                         my @rout;
 691                         my $parent = Route::Node::get($self->{call});
 692
 693                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 694                                 if ($call eq $self->{call}) {
 695                                         dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 696                                         return;
 697                                 }
 698
 699                                 # routing objects
 700                                 if ($parent) {
 701                                         push @rout, $parent->del_node($call);
 702                                 } else {
 703                                         dbg('chan', "PCPROT: Route::Node $call not in config");
 704                                 }
 705                         } else {
 706                                 dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
 707                                 return;
 708                         }
 709                         dbg('route', "B/C PC21 for: " . join(',', (map{$_->call} @rout))) if @rout;
 710
 711                         $self->route_pc21(@rout) if @rout;
 712                         return;
 713                 }
 714
 715                 if ($pcno == 22) {
 716                         $self->state('normal');
 717                         return;
 718                 }
 719
 720                 if ($pcno == 23 || $pcno == 27) { # WWV info
 721
 722                         # route 'foreign' pc27s
 723                         if ($pcno == 27) {
 724                                 if ($field[8] ne $main::mycall) {
 725                                         $self->route($field[8], $line);
 726                                         return;
 727                                 }
 728                         }
 729
 730                         # do some de-duping
 731                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 732                         my $sfi = unpad($field[3]);
 733                         my $k = unpad($field[4]);
 734                         my $i = unpad($field[5]);
 735                         my ($r) = $field[6] =~ /R=(\d+)/;
 736                         $r = 0 unless $r;
 737                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 738                                 dbg('chan', "PCPROT: WWV Date ($field[1] $field[2]) out of range");
 739                                 return;
 740                         }
 741                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 742                                 dbg('chan', "PCPROT: Dup WWV Spot ignored\n");
 743                                 return;
 744                         }
 745                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 746
 747                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 748
 749                         my $rep;
 750                         eval {
 751                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 752                         };
 753 #                       dbg('local', "Local::wwv2 error $@") if $@;
 754                         return if $rep;
 755
 756                         # DON'T be silly and send on PC27s!
 757                         return if $pcno == 27;
 758
 759                         # broadcast to the eager world
 760                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 761                         return;
 762                 }
 763
 764                 if ($pcno == 24) {              # set here status
 765                         my $call = uc $field[1];
 766                         my $ref = Route::Node::get($call);
 767                         $ref->here($field[2]) if $ref;
 768                         $ref = Route::User::get($call);
 769                         $ref->here($field[2]) if $ref;
 770                         last SWITCH;
 771                 }
 772
 773                 if ($pcno == 25) {      # merge request
 774                         if ($field[1] ne $main::mycall) {
 775                                 $self->route($field[1], $line);
 776                                 return;
 777                         }
 778                         if ($field[2] eq $main::mycall) {
 779                                 dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 780                                 return;
 781                         }
 782
 783                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 784
 785                         # spots
 786                         if ($field[3] > 0) {
 787                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 788                                 my $in;
 789                                 foreach $in (@in) {
 790                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 791                                 }
 792                         }
 793
 794                         # wwv
 795                         if ($field[4] > 0) {
 796                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 797                                 my $in;
 798                                 foreach $in (@in) {
 799                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 800                                 }
 801                         }
 802                         return;
 803                 }
 804
 805                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 806                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 807                                 DXMsg::process($self, $line);
 808                         } else {
 809                                 $self->route($field[1], $line) unless $self->is_clx;
 810                         }
 811                         return;
 812                 }
 813
 814                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 815                         if ($field[1] eq $main::mycall) {
 816                                 my $ref = DXUser->get_current($field[2]);
 817                                 my $cref = Route::Node::get($field[2]);
 818                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 819                                 unless (!$cref || !$ref || $cref->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 820                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 821                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 822                                                 my $oldpriv = $self->{priv};
 823                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 824                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 825                                                 $self->{priv} = $oldpriv;
 826                                                 for (@in) {
 827                                                         s/\s*$//og;
 828                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 829                                                         Log('rcmd', 'out', $field[2], $_);
 830                                                 }
 831                                                 delete $self->{remotecmd};
 832                                         } else {
 833                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 834                                         }
 835                                 } else {
 836                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 837                                 }
 838                         } else {
 839                                 my $ref = DXUser->get_current($field[1]);
 840                                 if ($ref && $ref->is_clx) {
 841                                         $self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 842                                 } else {
 843                                         $self->route($field[1], $line);
 844                                 }
 845                         }
 846                         return;
 847                 }
 848
 849                 if ($pcno == 35) {              # remote command replies
 850                         if ($field[1] eq $main::mycall) {
 851                                 my $s = $rcmds{$field[2]};
 852                                 if ($s) {
 853                                         my $dxchan = DXChannel->get($s->{call});
 854                                         $dxchan->send($field[3]) if $dxchan;
 855                                         delete $rcmds{$field[2]} if !$dxchan;
 856                                 } else {
 857                                         # send unsolicited ones to the sysop
 858                                         my $dxchan = DXChannel->get($main::myalias);
 859                                         $dxchan->send($field[3]) if $dxchan;
 860                                 }
 861                         } else {
 862                                 my $ref = DXUser->get_current($field[1]);
 863                                 if ($ref && $ref->is_clx) {
 864                                         $self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 865                                 } else {
 866                                         $self->route($field[1], $line);
 867                                 }
 868                         }
 869                         return;
 870                 }
 871
 872                 # for pc 37 see 44 onwards
 873
 874                 if ($pcno == 38) {              # node connected list from neighbour
 875                         return;
 876                 }
 877
 878                 if ($pcno == 39) {              # incoming disconnect
 879                         if ($field[1] eq $self->{call}) {
 880                                 $self->disconnect(1);
 881                         } else {
 882                                 dbg('chan', "PCPROT: came in on wrong channel");
 883                         }
 884                         return;
 885                 }
 886
 887                 if ($pcno == 41) {              # user info
 888                         # add this station to the user database, if required
 889                         my $user = DXUser->get_current($field[1]);
 890                         $user = DXUser->new($field[1]) if !$user;
 891
 892                         if ($field[2] == 1) {
 893                                 $user->name($field[3]);
 894                         } elsif ($field[2] == 2) {
 895                                 $user->qth($field[3]);
 896                         } elsif ($field[2] == 3) {
 897                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 898                                 $user->lat($lat);
 899                                 $user->long($long);
 900                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 901                         } elsif ($field[2] == 4) {
 902                                 $user->homenode($field[3]);
 903                         }
 904                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 905                         $user->put;
 906                         last SWITCH;
 907                 }
 908                 if ($pcno == 43) {
 909                         last SWITCH;
 910                 }
 911                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 912                         DXDb::process($self, $line);
 913                         return;
 914                 }
 915
 916                 if ($pcno == 50) {              # keep alive/user list
 917                         my $node = Route::Node::get($field[1]);
 918                         if ($node) {
 919                                 return unless $node->call eq $self->{call};
 920                                 $node->usercount($field[2]);
 921                         }
 922                         last SWITCH;
 923                 }
 924
 925                 if ($pcno == 51) {              # incoming ping requests/answers
 926
 927                         # is it for us?
 928                         if ($field[1] eq $main::mycall) {
 929                                 my $flag = $field[3];
 930                                 if ($flag == 1) {
 931                                         $self->send(pc51($field[2], $field[1], '0'));
 932                                 } else {
 933                                         # it's a reply, look in the ping list for this one
 934                                         my $ref = $pings{$field[2]};
 935                                         if ($ref) {
 936                                                 my $tochan =  DXChannel->get($field[2]);
 937                                                 while (@$ref) {
 938                                                         my $r = shift @$ref;
 939                                                         my $dxchan = DXChannel->get($r->{call});
 940                                                         next unless $dxchan;
 941                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 942                                                         if ($dxchan->is_user) {
 943                                                                 my $s = sprintf "%.2f", $t;
 944                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 945                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 946                                                         } elsif ($dxchan->is_node) {
 947                                                                 if ($tochan) {
 948                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
 949                                                                         push @{$tochan->{pingtime}}, $t;
 950                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 951                                                                         my $st;
 952                                                                         for (@{$tochan->{pingtime}}) {
 953                                                                                 $st += $_;
 954                                                                         }
 955                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 956                                                                 }
 957                                                         }
 958                                                 }
 959                                         }
 960                                 }
 961                         } else {
 962                                 # route down an appropriate thingy
 963                                 $self->route($field[1], $line);
 964                         }
 965                         return;
 966                 }
 967
 968                 if ($pcno == 75) {              # dunno but route it
 969                         if ($field[1] ne $main::mycall) {
 970                                 $self->route($field[1], $line);
 971                         }
 972                         return;
 973                 }
 974
 975                 if ($pcno == 73) {  # WCY broadcasts
 976
 977                         # do some de-duping
 978                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 979                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 980                                 dbg('chan', "PCPROT: WCY Date ($field[1] $field[2]) out of range");
 981                                 return;
 982                         }
 983                         @field = map { unpad($_) } @field;
 984                         if (WCY::dup($d,@field[3..7])) {
 985                                 dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
 986                                 return;
 987                         }
 988
 989                         my $wcy = WCY::update($d, @field[2..12]);
 990
 991                         my $rep;
 992                         eval {
 993                                 $rep = Local::wwv($self, @field[1..12]);
 994                         };
 995                         # dbg('local', "Local::wcy error $@") if $@;
 996                         return if $rep;
 997
 998                         # broadcast to the eager world
 999                         send_wcy_spot($self, $line, $d, @field[2..12]);
1000                         return;
1001                 }
1002
1003                 if ($pcno == 84) { # remote commands (incoming)
1004                         if ($field[1] eq $main::mycall) {
1005                                 my $ref = DXUser->get_current($field[2]);
1006                                 my $cref = Route::Node::get($field[2]);
1007                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1008                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1009                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1010                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1011                                                 my $oldpriv = $self->{priv};
1012                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1013                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1014                                                 $self->{priv} = $oldpriv;
1015                                                 for (@in) {
1016                                                         s/\s*$//og;
1017                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1018                                                         Log('rcmd', 'out', $field[2], $_);
1019                                                 }
1020                                                 delete $self->{remotecmd};
1021                                         } else {
1022                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1023                                         }
1024                                 } else {
1025                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1026                                 }
1027                         } else {
1028                                 my $ref = DXUser->get_current($field[1]);
1029                                 if ($ref && $ref->is_clx) {
1030                                         $self->route($field[1], $line);
1031                                 } else {
1032                                         $self->route($field[1], pc34($field[2], $field[1], $field[4]));
1033                                 }
1034                         }
1035                         return;
1036                 }
1037
1038                 if ($pcno == 85) {              # remote command replies
1039                         if ($field[1] eq $main::mycall) {
1040                                 my $dxchan = DXChannel->get($field[3]);
1041                                 if ($dxchan) {
1042                                         $dxchan->send($field[4]);
1043                                 } else {
1044                                         my $s = $rcmds{$field[2]};
1045                                         if ($s) {
1046                                                 $dxchan = DXChannel->get($s->{call});
1047                                                 $dxchan->send($field[4]) if $dxchan;
1048                                                 delete $rcmds{$field[2]} if !$dxchan;
1049                                         } else {
1050                                                 # send unsolicited ones to the sysop
1051                                                 my $dxchan = DXChannel->get($main::myalias);
1052                                                 $dxchan->send($field[4]) if $dxchan;
1053                                         }
1054                                 }
1055                         } else {
1056                                 my $ref = DXUser->get_current($field[1]);
1057                                 if ($ref && $ref->is_clx) {
1058                                         $self->route($field[1], $line);
1059                                 } else {
1060                                         $self->route($field[1], pc35($field[2], $field[1], $field[4]));
1061                                 }
1062                         }
1063                         return;
1064                 }
1065         }
1066
1067         # if get here then rebroadcast the thing with its Hop count decremented (if
1068         # there is one). If it has a hop count and it decrements to zero then don't
1069         # rebroadcast it.
1070         #
1071         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1072         #        REBROADCAST!!!!
1073         #
1074
1075         if (emph_dup($line)) {
1076                 dbg('chan', "PCPROT: Ephemeral dup, dropped");
1077         } else {
1078                 unless ($self->{isolate}) {
1079                         broadcast_ak1a($line, $self); # send it to everyone but me
1080                 }
1081         }
1082 }
1083
1084 #
1085 # This is called from inside the main cluster processing loop and is used
1086 # for despatching commands that are doing some long processing job
1087 #
1088 sub process
1089 {
1090         my $t = time;
1091         my @dxchan = DXChannel->get_all();
1092         my $dxchan;
1093
1094         foreach $dxchan (@dxchan) {
1095                 next unless $dxchan->is_node();
1096                 next if $dxchan == $me;
1097
1098                 # send a pc50 out on this channel
1099                 $dxchan->{pc50_t} = $main::systime unless exists $dxchan->{pc50_t};
1100                 if ($t >= $dxchan->{pc50_t} + $DXProt::pc50_interval) {
1101                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1102                         $dxchan->{pc50_t} = $t;
1103                 }
1104
1105                 # send a ping out on this channel
1106                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1107                         if ($dxchan->{nopings} <= 0) {
1108                                 $dxchan->disconnect;
1109                         } else {
1110                                 addping($main::mycall, $dxchan->call);
1111                                 $dxchan->{nopings} -= 1;
1112                                 $dxchan->{lastping} = $t;
1113                         }
1114                 }
1115         }
1116
1117         # every ten seconds
1118         if ($t - $last10 >= 10) {
1119                 # clean out emphemera
1120
1121                 emph_clean();
1122
1123                 $last10 = $t;
1124         }
1125
1126         if ($main::systime - 3600 > $last_hour) {
1127                 $last_hour = $main::systime;
1128         }
1129 }
1130
1131 #
1132 # finish up a pc context
1133 #
1134
1135 #
1136 # some active measures
1137 #
1138
1139 sub send_dx_spot
1140 {
1141         my $self = shift;
1142         my $line = shift;
1143         my @dxchan = DXChannel->get_all();
1144         my $dxchan;
1145
1146         # send it if it isn't the except list and isn't isolated and still has a hop count
1147         # taking into account filtering and so on
1148         foreach $dxchan (@dxchan) {
1149                 next if $dxchan == $me;
1150                 my $routeit;
1151                 my ($filter, $hops);
1152
1153                 if ($dxchan->{spotsfilter}) {
1154                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1155                         next unless $filter;
1156                 }
1157
1158                 if ($dxchan->is_node) {
1159                         next if $dxchan == $self;
1160                         if ($hops) {
1161                                 $routeit = $line;
1162                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1163                         } else {
1164                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1165                                 next unless $routeit;
1166                         }
1167                         if ($filter) {
1168                                 $dxchan->send($routeit) if $routeit;
1169                         } else {
1170                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1171                         }
1172                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1173                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1174                         $buf .= "\a\a" if $dxchan->{beep};
1175                         $buf =~ s/\%5E/^/g;
1176                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1177                                 $dxchan->send($buf);
1178                         } else {
1179                                 $dxchan->delay($buf);
1180                         }
1181                 }
1182         }
1183 }
1184
1185 sub send_wwv_spot
1186 {
1187         my $self = shift;
1188         my $line = shift;
1189         my @dxchan = DXChannel->get_all();
1190         my $dxchan;
1191         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1192         my @dxcc = Prefix::extract($_[7]);
1193         if (@dxcc > 0) {
1194                 $wwv_dxcc = $dxcc[1]->dxcc;
1195                 $wwv_itu = $dxcc[1]->itu;
1196                 $wwv_cq = $dxcc[1]->cq;
1197         }
1198         @dxcc = Prefix::extract($_[8]);
1199         if (@dxcc > 0) {
1200                 $org_dxcc = $dxcc[1]->dxcc;
1201                 $org_itu = $dxcc[1]->itu;
1202                 $org_cq = $dxcc[1]->cq;
1203         }
1204
1205         # send it if it isn't the except list and isn't isolated and still has a hop count
1206         # taking into account filtering and so on
1207         foreach $dxchan (@dxchan) {
1208                 next if $dxchan == $self;
1209                 next if $dxchan == $me;
1210                 my $routeit;
1211                 my ($filter, $hops);
1212
1213                 if ($dxchan->{wwvfilter}) {
1214                         ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1215                          next unless $filter;
1216                 }
1217                 if ($dxchan->is_node) {
1218                         if ($hops) {
1219                                 $routeit = $line;
1220                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1221                         } else {
1222                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1223                                 next unless $routeit;
1224                         }
1225                         if ($filter) {
1226                                 $dxchan->send($routeit) if $routeit;
1227                         } else {
1228                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1229
1230                         }
1231                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1232                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1233                         $buf .= "\a\a" if $dxchan->{beep};
1234                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1235                                 $dxchan->send($buf);
1236                         } else {
1237                                 $dxchan->delay($buf);
1238                         }
1239                 }
1240         }
1241 }
1242
1243 sub send_wcy_spot
1244 {
1245         my $self = shift;
1246         my $line = shift;
1247         my @dxchan = DXChannel->get_all();
1248         my $dxchan;
1249         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1250         my @dxcc = Prefix::extract($_[11]);
1251         if (@dxcc > 0) {
1252                 $wcy_dxcc = $dxcc[1]->dxcc;
1253                 $wcy_itu = $dxcc[1]->itu;
1254                 $wcy_cq = $dxcc[1]->cq;
1255         }
1256         @dxcc = Prefix::extract($_[12]);
1257         if (@dxcc > 0) {
1258                 $org_dxcc = $dxcc[1]->dxcc;
1259                 $org_itu = $dxcc[1]->itu;
1260                 $org_cq = $dxcc[1]->cq;
1261         }
1262
1263         # send it if it isn't the except list and isn't isolated and still has a hop count
1264         # taking into account filtering and so on
1265         foreach $dxchan (@dxchan) {
1266                 next if $dxchan == $me;
1267                 my $routeit;
1268                 my ($filter, $hops);
1269
1270                 if ($dxchan->{wcyfilter}) {
1271                         ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1272                          next unless $filter;
1273                 }
1274                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1275                         if ($hops) {
1276                                 $routeit = $line;
1277                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1278                         } else {
1279                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1280                                 next unless $routeit;
1281                         }
1282                         if ($filter) {
1283                                 $dxchan->send($routeit) if $routeit;
1284                         } else {
1285                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1286                         }
1287                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1288                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1289                         $buf .= "\a\a" if $dxchan->{beep};
1290                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1291                                 $dxchan->send($buf);
1292                         } else {
1293                                 $dxchan->delay($buf);
1294                         }
1295                 }
1296         }
1297 }
1298
1299 # send an announce
1300 sub send_announce
1301 {
1302         my $self = shift;
1303         my $line = shift;
1304         my @dxchan = DXChannel->get_all();
1305         my $dxchan;
1306         my $text = unpad($_[2]);
1307         my $target;
1308         my $to = 'To ';
1309
1310         if ($_[3] eq '*') {     # sysops
1311                 $target = "SYSOP";
1312         } elsif ($_[3] gt ' ') { # speciality list handling
1313                 my ($name) = split /\./, $_[3];
1314                 $target = "$name"; # put the rest in later (if bothered)
1315         }
1316
1317         if ($_[5] eq '1') {
1318                 $target = "WX";
1319                 $to = '';
1320         }
1321         $target = "ALL" if !$target;
1322
1323         Log('ann', $target, $_[0], $text);
1324
1325         # obtain country codes etc
1326         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1327         my @dxcc = Prefix::extract($_[0]);
1328         if (@dxcc > 0) {
1329                 $ann_dxcc = $dxcc[1]->dxcc;
1330                 $ann_itu = $dxcc[1]->itu;
1331                 $ann_cq = $dxcc[1]->cq;
1332         }
1333         @dxcc = Prefix::extract($_[4]);
1334         if (@dxcc > 0) {
1335                 $org_dxcc = $dxcc[1]->dxcc;
1336                 $org_itu = $dxcc[1]->itu;
1337                 $org_cq = $dxcc[1]->cq;
1338         }
1339
1340         # send it if it isn't the except list and isn't isolated and still has a hop count
1341         # taking into account filtering and so on
1342         foreach $dxchan (@dxchan) {
1343                 next if $dxchan == $self;
1344                 next if $dxchan == $me;
1345                 my $routeit;
1346                 my ($filter, $hops);
1347
1348                 if ($dxchan->{annfilter}) {
1349                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1350                         next unless $filter;
1351                 }
1352                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1353                         if ($hops) {
1354                                 $routeit = $line;
1355                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1356                         } else {
1357                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1358                                 next unless $routeit;
1359                         }
1360                         if ($filter) {
1361                                 $dxchan->send($routeit) if $routeit;
1362                         } else {
1363                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1364
1365                         }
1366                 } elsif ($dxchan->is_user) {
1367                         unless ($dxchan->{ann}) {
1368                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1369                         }
1370                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1371                         my $buf = "$to$target de $_[0]: $text";
1372                         $buf =~ s/\%5E/^/g;
1373                         $buf .= "\a\a" if $dxchan->{beep};
1374                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1375                                 $dxchan->send($buf);
1376                         } else {
1377                                 $dxchan->delay($buf);
1378                         }
1379                 }
1380         }
1381 }
1382
1383 sub send_local_config
1384 {
1385         my $self = shift;
1386         my $n;
1387         my @nodes;
1388         my @localnodes;
1389         my @remotenodes;
1390
1391         dbg('trace', 'DXProt::send_local_config');
1392
1393         # send our nodes
1394         if ($self->{isolate}) {
1395                 @localnodes = ( $main::routeroot );
1396         } else {
1397                 # create a list of all the nodes that are not connected to this connection
1398                 # and are not themselves isolated, this to make sure that isolated nodes
1399         # don't appear outside of this node
1400                 my @dxchan = grep { $_->call ne $main::mycall && $_->call ne $self->{call} } DXChannel::get_all_nodes();
1401                 @localnodes = map { Route::Node::get($_->{call}) or die "connot find node $_->{call}" } @dxchan if @dxchan;
1402                 my @intcalls = map { $_->nodes } @localnodes if @localnodes;
1403                 my $ref = Route::Node::get($self->{call});
1404                 my @rnodes = $ref->nodes;
1405                 for my $n (@intcalls) {
1406                         push @remotenodes, Route::Node::get($n) unless grep $n eq $_, @rnodes;
1407                 }
1408                 unshift @localnodes, $main::routeroot;
1409         }
1410
1411         send_route($self, \&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
1412
1413         # get all the users connected on the above nodes and send them out
1414         foreach $n (@localnodes, @remotenodes) {
1415                 send_route($self, \&pc16, 1, $n, map {my $r = Route::User::get($_); $r ? ($r) : ()} $n->users);
1416         }
1417 }
1418
1419 #
1420 # route a message down an appropriate interface for a callsign
1421 #
1422 # is called route(to, pcline);
1423 #
1424 sub route
1425 {
1426         my ($self, $call, $line) = @_;
1427
1428         if (ref $self && $call eq $self->{call}) {
1429                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1430                 return;
1431         }
1432
1433         # always send it down the local interface if available
1434         my $dxchan = DXChannel->get($call);
1435         unless ($dxchan) {
1436                 my $cl = Route::Node::get($call);
1437                 $dxchan = $cl->dxchan if $cl;
1438                 if (ref $dxchan) {
1439                         if (ref $self && $dxchan eq $self) {
1440                                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1441                                 return;
1442                         }
1443                 }
1444         }
1445         if ($dxchan) {
1446                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1447                 if ($routeit) {
1448                         $dxchan->send($routeit);
1449                 }
1450         } else {
1451                 dbg('chan', "PCPROT: No route available, dropped");
1452         }
1453 }
1454
1455 # broadcast a message to all clusters taking into account isolation
1456 # [except those mentioned after buffer]
1457 sub broadcast_ak1a
1458 {
1459         my $s = shift;                          # the line to be rebroadcast
1460         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1461         my @dxchan = DXChannel::get_all_nodes();
1462         my $dxchan;
1463
1464         # send it if it isn't the except list and isn't isolated and still has a hop count
1465         foreach $dxchan (@dxchan) {
1466                 next if grep $dxchan == $_, @except;
1467                 next if $dxchan == $me;
1468
1469                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1470                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1471         }
1472 }
1473
1474 # broadcast a message to all clusters ignoring isolation
1475 # [except those mentioned after buffer]
1476 sub broadcast_all_ak1a
1477 {
1478         my $s = shift;                          # the line to be rebroadcast
1479         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1480         my @dxchan = DXChannel::get_all_nodes();
1481         my $dxchan;
1482
1483         # send it if it isn't the except list and isn't isolated and still has a hop count
1484         foreach $dxchan (@dxchan) {
1485                 next if grep $dxchan == $_, @except;
1486                 next if $dxchan == $me;
1487
1488                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1489                 $dxchan->send($routeit);
1490         }
1491 }
1492
1493 # broadcast to all users
1494 # storing the spot or whatever until it is in a state to receive it
1495 sub broadcast_users
1496 {
1497         my $s = shift;                          # the line to be rebroadcast
1498         my $sort = shift;           # the type of transmission
1499         my $fref = shift;           # a reference to an object to filter on
1500         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1501         my @dxchan = DXChannel::get_all_users();
1502         my $dxchan;
1503         my @out;
1504
1505         foreach $dxchan (@dxchan) {
1506                 next if grep $dxchan == $_, @except;
1507                 push @out, $dxchan;
1508         }
1509         broadcast_list($s, $sort, $fref, @out);
1510 }
1511
1512 # broadcast to a list of users
1513 sub broadcast_list
1514 {
1515         my $s = shift;
1516         my $sort = shift;
1517         my $fref = shift;
1518         my $dxchan;
1519
1520         foreach $dxchan (@_) {
1521                 my $filter = 1;
1522                 next if $dxchan == $me;
1523
1524                 if ($sort eq 'dx') {
1525                     next unless $dxchan->{dx};
1526                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1527                         next unless $filter;
1528                 }
1529                 next if $sort eq 'ann' && !$dxchan->{ann};
1530                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1531                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1532                 next if $sort eq 'wx' && !$dxchan->{wx};
1533
1534                 $s =~ s/\a//og unless $dxchan->{beep};
1535
1536                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1537                         $dxchan->send($s);
1538                 } else {
1539                         $dxchan->delay($s);
1540                 }
1541         }
1542 }
1543
1544
1545 #
1546 # obtain the hops from the list for this callsign and pc no
1547 #
1548
1549 sub get_hops
1550 {
1551         my $pcno = shift;
1552         my $hops = $DXProt::hopcount{$pcno};
1553         $hops = $DXProt::def_hopcount if !$hops;
1554         return "H$hops";
1555 }
1556
1557 #
1558 # adjust the hop count on a per node basis using the user loadable
1559 # hop table if available or else decrement an existing one
1560 #
1561
1562 sub adjust_hops
1563 {
1564         my $self = shift;
1565         my $s = shift;
1566         my $call = $self->{call};
1567         my $hops;
1568
1569         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1570                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1571                 confess "$call called adjust_hops with '$s'" unless $pcno;
1572                 my $ref = $nodehops{$call} if %nodehops;
1573                 if ($ref) {
1574                         my $newhops = $ref->{$pcno};
1575                         return "" if defined $newhops && $newhops == 0;
1576                         $newhops = $ref->{default} unless $newhops;
1577                         return "" if defined $newhops && $newhops == 0;
1578                         $newhops = $hops if !$newhops;
1579                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1580                 } else {
1581                         # simply decrement it
1582                         $hops--;
1583                         return "" if !$hops;
1584                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1585                 }
1586         }
1587         return $s;
1588 }
1589
1590 #
1591 # load hop tables
1592 #
1593 sub load_hops
1594 {
1595         my $self = shift;
1596         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1597         do "$main::data/hop_table.pl";
1598         return $@ if $@;
1599         return 0;
1600 }
1601
1602
1603 # add a ping request to the ping queues
1604 sub addping
1605 {
1606         my ($from, $to) = @_;
1607         my $ref = $pings{$to} || [];
1608         my $r = {};
1609         $r->{call} = $from;
1610         $r->{t} = [ gettimeofday ];
1611         route(undef, $to, pc51($to, $main::mycall, 1));
1612         push @$ref, $r;
1613         $pings{$to} = $ref;
1614 }
1615
1616 # add a rcmd request to the rcmd queues
1617 sub addrcmd
1618 {
1619         my ($self, $to, $cmd) = @_;
1620
1621         my $r = {};
1622         $r->{call} = $self->{call};
1623         $r->{t} = $main::systime;
1624         $r->{cmd} = $cmd;
1625         $rcmds{$to} = $r;
1626
1627         my $ref = Route::Node::get($to);
1628         my $dxchan = $ref->dxchan;
1629     if ($dxchan && $dxchan->is_clx) {
1630                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1631         } else {
1632                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1633         }
1634 }
1635
1636 sub disconnect
1637 {
1638         my $self = shift;
1639         my $pc39flag = shift;
1640         my $call = $self->call;
1641
1642         unless ($pc39flag && $pc39flag == 1) {
1643                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1644         }
1645
1646         # do routing stuff
1647 #       my $node = Route::Node::get($self->{call});
1648 #       my @rout = $node->del_nodes if $node;
1649         my @rout = $main::routeroot->del_node($call);
1650         dbg('route', "B/C PC21 (from PC39) for: " . join(',', (map{ $_->call } @rout))) if @rout;
1651
1652         # unbusy and stop and outgoing mail
1653         my $mref = DXMsg::get_busy($call);
1654         $mref->stop_msg($call) if $mref;
1655
1656         # broadcast to all other nodes that all the nodes connected to via me are gone
1657         unless ($pc39flag && $pc39flag == 2) {
1658                 $self->route_pc21(@rout) if @rout;
1659         }
1660
1661         # remove outstanding pings
1662         delete $pings{$call};
1663
1664         # I was the last node visited
1665     $self->user->node($main::mycall);
1666
1667         # send info to all logged in thingies
1668         $self->tell_login('logoutn');
1669
1670         Log('DXProt', $call . " Disconnected");
1671
1672         $self->SUPER::disconnect;
1673 }
1674
1675
1676 #
1677 # send a talk message to this thingy
1678 #
1679 sub talk
1680 {
1681         my ($self, $from, $to, $via, $line) = @_;
1682
1683         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1684         $self->send(DXProt::pc10($from, $to, $via, $line));
1685         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1686 }
1687
1688 # send it if it isn't the except list and isn't isolated and still has a hop count
1689 # taking into account filtering and so on
1690 sub send_route
1691 {
1692         my $self = shift;
1693         my $generate = shift;
1694         my $no = shift;     # the no of things to filter on
1695         my $routeit;
1696         my ($filter, $hops);
1697         my @rin;
1698
1699         if ($self->{routefilter}) {
1700                 for (; @_ && $no; $no--) {
1701                         my $r = shift;
1702                         ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1703                         push @rin, $r if $filter;
1704                 }
1705         }
1706         if (@rin) {
1707                 foreach my $line (&$generate(@rin, @_)) {
1708                         if ($hops) {
1709                                 $routeit = $line;
1710                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1711                         } else {
1712                                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1713                                 next unless $routeit;
1714                         }
1715                         $self->send($routeit);
1716                 }
1717         }
1718 }
1719
1720 sub broadcast_route
1721 {
1722         my $self = shift;
1723         my $generate = shift;
1724         my @dxchan = DXChannel::get_all_nodes();
1725         my $dxchan;
1726         my $line;
1727
1728         foreach $dxchan (@dxchan) {
1729                 next if $dxchan == $self;
1730                 next if $dxchan == $me;
1731                 $dxchan->send_route($generate, @_);
1732         }
1733 }
1734
1735 sub route_pc16
1736 {
1737         my $self = shift;
1738         broadcast_route($self, \&pc16, 1, @_);
1739 }
1740
1741 sub route_pc17
1742 {
1743         my $self = shift;
1744         broadcast_route($self, \&pc17, 1, @_);
1745 }
1746
1747 sub route_pc19
1748 {
1749         my $self = shift;
1750         broadcast_route($self, \&pc19, scalar @_, @_);
1751 }
1752
1753 sub route_pc21
1754 {
1755         my $self = shift;
1756         broadcast_route($self, \&pc21, scalar @_, @_);
1757 }
1758
1759 sub emph_dup
1760 {
1761         my $s = shift;
1762
1763         # chop the end off
1764         $s =~ s/\^H\d\d?\^?~?@//;
1765         return 1 if exists $emph{$s};
1766         $emph{$s} = $main::systime;
1767         return undef;
1768 }
1769
1770 sub emph_clean
1771 {
1772         my ($key, $val);
1773
1774         while (($key, $val) = each %emph) {
1775                 if ($main::systime - $val > 90) {
1776                         delete $emph{$key};
1777                 }
1778         }
1779 }
1780
1781 1;
1782 __END__