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 %eph  %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                                 my $r = Route::User::get($call);
 558                                 my $flags = Route::here($here)|Route::conf($conf);
 559
 560                                 if ($r && $r->flags != $flags) {
 561                                         $r->$flags($flags);
 562                                         push @rout, $r;
 563                                 } elsif (!$r) {
 564                                         push @rout, $parent->add_user($call, $flags);
 565                                 }
 566
 567                                 # add this station to the user database, if required
 568                                 $call =~ s/-\d+$//o;        # remove ssid for users
 569                                 my $user = DXUser->get_current($call);
 570                                 $user = DXUser->new($call) if !$user;
 571                                 $user->homenode($parent->call) if !$user->homenode;
 572                                 $user->node($parent->call);
 573                                 $user->lastin($main::systime) unless DXChannel->get($call);
 574                                 $user->put;
 575                         }
 576
 577
 578                         # queue up any messages (look for privates only)
 579                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 580
 581                         $self->route_pc16($parent, @rout) if @rout;
 582                         return;
 583                 }
 584
 585                 if ($pcno == 17) {              # remove a user
 586                         my $dxchan;
 587                         my $ncall = $field[2];
 588                         my $ucall = $field[1];
 589                         if ($ncall eq $main::mycall) {
 590                                 dbg('chan', "PCPROT: trying to alter config on this node from outside!");
 591                                 return;
 592                         }
 593                         $dxchan = DXChannel->get($ncall);
 594                         if ($dxchan && $dxchan ne $self) {
 595                                 dbg('chan', "PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!");
 596                                 return;
 597                         }
 598                         my $parent = Route::Node::get($ncall);
 599                         unless ($parent) {
 600                                 dbg('chan', "PCPROT: Route::Node $ncall not in config");
 601                                 return;
 602                         }
 603                         my $r = Route::User::get($ucall);
 604                         my @rout = $parent->del_user($ucall) if $r;
 605                         $self->route_pc17($parent, @rout) if @rout;
 606                         return;
 607                 }
 608
 609                 if ($pcno == 18) {              # link request
 610                         $self->state('init');
 611
 612                         # first clear out any nodes on this dxchannel
 613                         my $parent = Route::Node::get($self->{call});
 614                         my @rout;
 615                         for ($parent->nodes) {
 616                                 my $r = Route::Node::get($_);
 617                                 push @rout, $r->del_node if $r;
 618                         }
 619                         $self->route_pc21(@rout, $parent);
 620                         $self->send_local_config();
 621                         $self->send(pc20());
 622                         return;             # we don't pass these on
 623                 }
 624
 625                 if ($pcno == 19) {              # incoming cluster list
 626                         my $i;
 627                         my $newline = "PC19^";
 628
 629                         # new routing list
 630                         my @rout;
 631                         my $parent = Route::Node::get($self->{call});
 632
 633                         # parse the PC19
 634                         for ($i = 1; $i < $#field-1; $i += 4) {
 635                                 my $here = $field[$i];
 636                                 my $call = uc $field[$i+1];
 637                                 my $conf = $field[$i+2];
 638                                 my $ver = $field[$i+3];
 639                                 next unless defined $here && defined $conf && is_callsign($call);
 640                                 # check for sane parameters
 641                                 $ver = 5000 if $ver eq '0000';
 642                                 next if $ver < 5000; # only works with version 5 software
 643                                 next if length $call < 3; # min 3 letter callsigns
 644
 645                                 # update it if required
 646                                 my $r;
 647                                 my $flags = Route::here($here)|Route::conf($conf);
 648                                 if ($parent->call eq $call && ($parent->version ne $ver || $parent->flags != $flags)) {
 649                                         $parent->version($ver);
 650                                         $parent->flags($flags);
 651                                         push @rout, $parent;
 652                                 } elsif ($parent->call ne $call) {
 653                                         next if $call eq $main::mycall || $call eq $self->{call};
 654
 655                                         my $r = $parent->add($call, $ver, Route::here($here)|Route::conf($conf));
 656                                         push @rout, $r if $r;
 657                                 } else {
 658                                         $r = Route::Node::get($call);
 659                                         if ($r && ($r->version ne $ver || $r->flags != $flags)) {
 660                                                 $r->version($ver);
 661                                                 $r->flags(Route::here($here)|Route::conf($conf));
 662                                                 push @rout, $r;
 663                                         }
 664                                 }
 665
 666                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 667                                 my $mref = DXMsg::get_busy($call);
 668                                 $mref->stop_msg($call) if $mref;
 669
 670                                 # add this station to the user database, if required (don't remove SSID from nodes)
 671                                 my $user = DXUser->get_current($call);
 672                                 if (!$user) {
 673                                         $user = DXUser->new($call);
 674                                         $user->sort('A');
 675                                         $user->priv(1);                   # I have relented and defaulted nodes
 676                                         $self->{priv} = 1;                # to user RCMDs allowed
 677                                         $user->homenode($call);
 678                                         $user->node($call);
 679                                 }
 680                                 $user->lastin($main::systime) unless DXChannel->get($call);
 681                                 $user->put;
 682                         }
 683
 684                         $self->route_pc19(@rout) if @rout;
 685                         return;
 686                 }
 687
 688                 if ($pcno == 20) {              # send local configuration
 689                         $self->send_local_config();
 690                         $self->send(pc22());
 691                         $self->state('normal');
 692                         return;
 693                 }
 694
 695                 if ($pcno == 21) {              # delete a cluster from the list
 696                         my $call = uc $field[1];
 697                         my @rout;
 698                         my $parent = Route::Node::get($self->{call});
 699
 700                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 701                                 if ($call eq $self->{call}) {
 702                                         dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 703                                         return;
 704                                 }
 705
 706                                 # routing objects
 707                                 if ($parent) {
 708                                         push @rout, $parent->del_node($call);
 709                                 } else {
 710                                         dbg('chan', "PCPROT: Route::Node $call not in config");
 711                                 }
 712                         } else {
 713                                 dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
 714                                 return;
 715                         }
 716                         $self->route_pc21(@rout) if @rout;
 717                         return;
 718                 }
 719
 720                 if ($pcno == 22) {
 721                         $self->state('normal');
 722                         return;
 723                 }
 724
 725                 if ($pcno == 23 || $pcno == 27) { # WWV info
 726
 727                         # route 'foreign' pc27s
 728                         if ($pcno == 27) {
 729                                 if ($field[8] ne $main::mycall) {
 730                                         $self->route($field[8], $line);
 731                                         return;
 732                                 }
 733                         }
 734
 735                         # do some de-duping
 736                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 737                         my $sfi = unpad($field[3]);
 738                         my $k = unpad($field[4]);
 739                         my $i = unpad($field[5]);
 740                         my ($r) = $field[6] =~ /R=(\d+)/;
 741                         $r = 0 unless $r;
 742                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 743                                 dbg('chan', "PCPROT: WWV Date ($field[1] $field[2]) out of range");
 744                                 return;
 745                         }
 746                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 747                                 dbg('chan', "PCPROT: Dup WWV Spot ignored\n");
 748                                 return;
 749                         }
 750                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 751
 752                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 753
 754                         my $rep;
 755                         eval {
 756                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 757                         };
 758 #                       dbg('local', "Local::wwv2 error $@") if $@;
 759                         return if $rep;
 760
 761                         # DON'T be silly and send on PC27s!
 762                         return if $pcno == 27;
 763
 764                         # broadcast to the eager world
 765                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 766                         return;
 767                 }
 768
 769                 if ($pcno == 24) {              # set here status
 770                         my $call = uc $field[1];
 771                         my $ref = Route::Node::get($call);
 772                         $ref->here($field[2]) if $ref;
 773                         $ref = Route::User::get($call);
 774                         $ref->here($field[2]) if $ref;
 775                         last SWITCH;
 776                 }
 777
 778                 if ($pcno == 25) {      # merge request
 779                         if ($field[1] ne $main::mycall) {
 780                                 $self->route($field[1], $line);
 781                                 return;
 782                         }
 783                         if ($field[2] eq $main::mycall) {
 784                                 dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 785                                 return;
 786                         }
 787
 788                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 789
 790                         # spots
 791                         if ($field[3] > 0) {
 792                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 793                                 my $in;
 794                                 foreach $in (@in) {
 795                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 796                                 }
 797                         }
 798
 799                         # wwv
 800                         if ($field[4] > 0) {
 801                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 802                                 my $in;
 803                                 foreach $in (@in) {
 804                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 805                                 }
 806                         }
 807                         return;
 808                 }
 809
 810                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 811                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 812                                 DXMsg::process($self, $line);
 813                         } else {
 814                                 $self->route($field[1], $line) unless $self->is_clx;
 815                         }
 816                         return;
 817                 }
 818
 819                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 820                         if ($field[1] eq $main::mycall) {
 821                                 my $ref = DXUser->get_current($field[2]);
 822                                 my $cref = Route::Node::get($field[2]);
 823                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 824                                 unless (!$cref || !$ref || $cref->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 825                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 826                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 827                                                 my $oldpriv = $self->{priv};
 828                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 829                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 830                                                 $self->{priv} = $oldpriv;
 831                                                 for (@in) {
 832                                                         s/\s*$//og;
 833                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 834                                                         Log('rcmd', 'out', $field[2], $_);
 835                                                 }
 836                                                 delete $self->{remotecmd};
 837                                         } else {
 838                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 839                                         }
 840                                 } else {
 841                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 842                                 }
 843                         } else {
 844                                 my $ref = DXUser->get_current($field[1]);
 845                                 if ($ref && $ref->is_clx) {
 846                                         $self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 847                                 } else {
 848                                         $self->route($field[1], $line);
 849                                 }
 850                         }
 851                         return;
 852                 }
 853
 854                 if ($pcno == 35) {              # remote command replies
 855                         if ($field[1] eq $main::mycall) {
 856                                 my $s = $rcmds{$field[2]};
 857                                 if ($s) {
 858                                         my $dxchan = DXChannel->get($s->{call});
 859                                         $dxchan->send($field[3]) if $dxchan;
 860                                         delete $rcmds{$field[2]} if !$dxchan;
 861                                 } else {
 862                                         # send unsolicited ones to the sysop
 863                                         my $dxchan = DXChannel->get($main::myalias);
 864                                         $dxchan->send($field[3]) if $dxchan;
 865                                 }
 866                         } else {
 867                                 my $ref = DXUser->get_current($field[1]);
 868                                 if ($ref && $ref->is_clx) {
 869                                         $self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 870                                 } else {
 871                                         $self->route($field[1], $line);
 872                                 }
 873                         }
 874                         return;
 875                 }
 876
 877                 # for pc 37 see 44 onwards
 878
 879                 if ($pcno == 38) {              # node connected list from neighbour
 880                         return;
 881                 }
 882
 883                 if ($pcno == 39) {              # incoming disconnect
 884                         if ($field[1] eq $self->{call}) {
 885                                 $self->disconnect(1);
 886                         } else {
 887                                 dbg('chan', "PCPROT: came in on wrong channel");
 888                         }
 889                         return;
 890                 }
 891
 892                 if ($pcno == 41) {              # user info
 893                         # add this station to the user database, if required
 894                         my $user = DXUser->get_current($field[1]);
 895                         $user = DXUser->new($field[1]) if !$user;
 896
 897                         if ($field[2] == 1) {
 898                                 $user->name($field[3]);
 899                         } elsif ($field[2] == 2) {
 900                                 $user->qth($field[3]);
 901                         } elsif ($field[2] == 3) {
 902                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 903                                 $user->lat($lat);
 904                                 $user->long($long);
 905                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 906                         } elsif ($field[2] == 4) {
 907                                 $user->homenode($field[3]);
 908                         }
 909                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 910                         $user->put;
 911                         last SWITCH;
 912                 }
 913                 if ($pcno == 43) {
 914                         last SWITCH;
 915                 }
 916                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 917                         DXDb::process($self, $line);
 918                         return;
 919                 }
 920
 921                 if ($pcno == 50) {              # keep alive/user list
 922                         my $node = Route::Node::get($field[1]);
 923                         if ($node) {
 924                                 return unless $node->call eq $self->{call};
 925                                 $node->usercount($field[2]);
 926                         }
 927                         last SWITCH;
 928                 }
 929
 930                 if ($pcno == 51) {              # incoming ping requests/answers
 931
 932                         # is it for us?
 933                         if ($field[1] eq $main::mycall) {
 934                                 my $flag = $field[3];
 935                                 if ($flag == 1) {
 936                                         $self->send(pc51($field[2], $field[1], '0'));
 937                                 } else {
 938                                         # it's a reply, look in the ping list for this one
 939                                         my $ref = $pings{$field[2]};
 940                                         if ($ref) {
 941                                                 my $tochan =  DXChannel->get($field[2]);
 942                                                 while (@$ref) {
 943                                                         my $r = shift @$ref;
 944                                                         my $dxchan = DXChannel->get($r->{call});
 945                                                         next unless $dxchan;
 946                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 947                                                         if ($dxchan->is_user) {
 948                                                                 my $s = sprintf "%.2f", $t;
 949                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 950                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 951                                                         } elsif ($dxchan->is_node) {
 952                                                                 if ($tochan) {
 953                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
 954                                                                         push @{$tochan->{pingtime}}, $t;
 955                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 956                                                                         my $st;
 957                                                                         for (@{$tochan->{pingtime}}) {
 958                                                                                 $st += $_;
 959                                                                         }
 960                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 961                                                                 }
 962                                                         }
 963                                                 }
 964                                         }
 965                                 }
 966                         } else {
 967                                 # route down an appropriate thingy
 968                                 $self->route($field[1], $line);
 969                         }
 970                         return;
 971                 }
 972
 973                 if ($pcno == 75) {              # dunno but route it
 974                         if ($field[1] ne $main::mycall) {
 975                                 $self->route($field[1], $line);
 976                         }
 977                         return;
 978                 }
 979
 980                 if ($pcno == 73) {  # WCY broadcasts
 981
 982                         # do some de-duping
 983                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 984                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 985                                 dbg('chan', "PCPROT: WCY Date ($field[1] $field[2]) out of range");
 986                                 return;
 987                         }
 988                         @field = map { unpad($_) } @field;
 989                         if (WCY::dup($d,@field[3..7])) {
 990                                 dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
 991                                 return;
 992                         }
 993
 994                         my $wcy = WCY::update($d, @field[2..12]);
 995
 996                         my $rep;
 997                         eval {
 998                                 $rep = Local::wwv($self, @field[1..12]);
 999                         };
1000                         # dbg('local', "Local::wcy error $@") if $@;
1001                         return if $rep;
1002
1003                         # broadcast to the eager world
1004                         send_wcy_spot($self, $line, $d, @field[2..12]);
1005                         return;
1006                 }
1007
1008                 if ($pcno == 84) { # remote commands (incoming)
1009                         if ($field[1] eq $main::mycall) {
1010                                 my $ref = DXUser->get_current($field[2]);
1011                                 my $cref = Route::Node::get($field[2]);
1012                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1013                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1014                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1015                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1016                                                 my $oldpriv = $self->{priv};
1017                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1018                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1019                                                 $self->{priv} = $oldpriv;
1020                                                 for (@in) {
1021                                                         s/\s*$//og;
1022                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1023                                                         Log('rcmd', 'out', $field[2], $_);
1024                                                 }
1025                                                 delete $self->{remotecmd};
1026                                         } else {
1027                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1028                                         }
1029                                 } else {
1030                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1031                                 }
1032                         } else {
1033                                 my $ref = DXUser->get_current($field[1]);
1034                                 if ($ref && $ref->is_clx) {
1035                                         $self->route($field[1], $line);
1036                                 } else {
1037                                         $self->route($field[1], pc34($field[2], $field[1], $field[4]));
1038                                 }
1039                         }
1040                         return;
1041                 }
1042
1043                 if ($pcno == 85) {              # remote command replies
1044                         if ($field[1] eq $main::mycall) {
1045                                 my $dxchan = DXChannel->get($field[3]);
1046                                 if ($dxchan) {
1047                                         $dxchan->send($field[4]);
1048                                 } else {
1049                                         my $s = $rcmds{$field[2]};
1050                                         if ($s) {
1051                                                 $dxchan = DXChannel->get($s->{call});
1052                                                 $dxchan->send($field[4]) if $dxchan;
1053                                                 delete $rcmds{$field[2]} if !$dxchan;
1054                                         } else {
1055                                                 # send unsolicited ones to the sysop
1056                                                 my $dxchan = DXChannel->get($main::myalias);
1057                                                 $dxchan->send($field[4]) if $dxchan;
1058                                         }
1059                                 }
1060                         } else {
1061                                 my $ref = DXUser->get_current($field[1]);
1062                                 if ($ref && $ref->is_clx) {
1063                                         $self->route($field[1], $line);
1064                                 } else {
1065                                         $self->route($field[1], pc35($field[2], $field[1], $field[4]));
1066                                 }
1067                         }
1068                         return;
1069                 }
1070         }
1071
1072         # if get here then rebroadcast the thing with its Hop count decremented (if
1073         # there is one). If it has a hop count and it decrements to zero then don't
1074         # rebroadcast it.
1075         #
1076         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1077         #        REBROADCAST!!!!
1078         #
1079
1080         if (eph_dup($line)) {
1081                 dbg('chan', "PCPROT: Ephemeral dup, dropped");
1082         } else {
1083                 unless ($self->{isolate}) {
1084                         broadcast_ak1a($line, $self); # send it to everyone but me
1085                 }
1086         }
1087 }
1088
1089 #
1090 # This is called from inside the main cluster processing loop and is used
1091 # for despatching commands that are doing some long processing job
1092 #
1093 sub process
1094 {
1095         my $t = time;
1096         my @dxchan = DXChannel->get_all();
1097         my $dxchan;
1098
1099         foreach $dxchan (@dxchan) {
1100                 next unless $dxchan->is_node();
1101                 next if $dxchan == $me;
1102
1103                 # send a pc50 out on this channel
1104                 $dxchan->{pc50_t} = $main::systime unless exists $dxchan->{pc50_t};
1105                 if ($t >= $dxchan->{pc50_t} + $DXProt::pc50_interval) {
1106                         my $s = pc50(scalar DXChannel::get_all_users);
1107                         eph_dup($s);
1108                         $dxchan->send($s);
1109                         $dxchan->{pc50_t} = $t;
1110                 }
1111
1112                 # send a ping out on this channel
1113                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1114                         if ($dxchan->{nopings} <= 0) {
1115                                 $dxchan->disconnect;
1116                         } else {
1117                                 addping($main::mycall, $dxchan->call);
1118                                 $dxchan->{nopings} -= 1;
1119                                 $dxchan->{lastping} = $t;
1120                         }
1121                 }
1122         }
1123
1124         # every ten seconds
1125         if ($t - $last10 >= 10) {
1126                 # clean out ephemera
1127
1128                 eph_clean();
1129
1130                 $last10 = $t;
1131         }
1132
1133         if ($main::systime - 3600 > $last_hour) {
1134                 $last_hour = $main::systime;
1135         }
1136 }
1137
1138 #
1139 # finish up a pc context
1140 #
1141
1142 #
1143 # some active measures
1144 #
1145
1146 sub send_dx_spot
1147 {
1148         my $self = shift;
1149         my $line = shift;
1150         my @dxchan = DXChannel->get_all();
1151         my $dxchan;
1152
1153         # send it if it isn't the except list and isn't isolated and still has a hop count
1154         # taking into account filtering and so on
1155         foreach $dxchan (@dxchan) {
1156                 next if $dxchan == $me;
1157                 my $routeit;
1158                 my ($filter, $hops);
1159
1160                 if ($dxchan->{spotsfilter}) {
1161                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1162                         next unless $filter;
1163                 }
1164
1165                 if ($dxchan->is_node) {
1166                         next if $dxchan == $self;
1167                         if ($hops) {
1168                                 $routeit = $line;
1169                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1170                         } else {
1171                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1172                                 next unless $routeit;
1173                         }
1174                         if ($filter) {
1175                                 $dxchan->send($routeit) if $routeit;
1176                         } else {
1177                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1178                         }
1179                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1180                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1181                         $buf .= "\a\a" if $dxchan->{beep};
1182                         $buf =~ s/\%5E/^/g;
1183                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1184                                 $dxchan->send($buf);
1185                         } else {
1186                                 $dxchan->delay($buf);
1187                         }
1188                 }
1189         }
1190 }
1191
1192 sub send_wwv_spot
1193 {
1194         my $self = shift;
1195         my $line = shift;
1196         my @dxchan = DXChannel->get_all();
1197         my $dxchan;
1198         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1199         my @dxcc = Prefix::extract($_[7]);
1200         if (@dxcc > 0) {
1201                 $wwv_dxcc = $dxcc[1]->dxcc;
1202                 $wwv_itu = $dxcc[1]->itu;
1203                 $wwv_cq = $dxcc[1]->cq;
1204         }
1205         @dxcc = Prefix::extract($_[8]);
1206         if (@dxcc > 0) {
1207                 $org_dxcc = $dxcc[1]->dxcc;
1208                 $org_itu = $dxcc[1]->itu;
1209                 $org_cq = $dxcc[1]->cq;
1210         }
1211
1212         # send it if it isn't the except list and isn't isolated and still has a hop count
1213         # taking into account filtering and so on
1214         foreach $dxchan (@dxchan) {
1215                 next if $dxchan == $self;
1216                 next if $dxchan == $me;
1217                 my $routeit;
1218                 my ($filter, $hops);
1219
1220                 if ($dxchan->{wwvfilter}) {
1221                         ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1222                          next unless $filter;
1223                 }
1224                 if ($dxchan->is_node) {
1225                         if ($hops) {
1226                                 $routeit = $line;
1227                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1228                         } else {
1229                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1230                                 next unless $routeit;
1231                         }
1232                         if ($filter) {
1233                                 $dxchan->send($routeit) if $routeit;
1234                         } else {
1235                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1236
1237                         }
1238                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1239                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1240                         $buf .= "\a\a" if $dxchan->{beep};
1241                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1242                                 $dxchan->send($buf);
1243                         } else {
1244                                 $dxchan->delay($buf);
1245                         }
1246                 }
1247         }
1248 }
1249
1250 sub send_wcy_spot
1251 {
1252         my $self = shift;
1253         my $line = shift;
1254         my @dxchan = DXChannel->get_all();
1255         my $dxchan;
1256         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1257         my @dxcc = Prefix::extract($_[11]);
1258         if (@dxcc > 0) {
1259                 $wcy_dxcc = $dxcc[1]->dxcc;
1260                 $wcy_itu = $dxcc[1]->itu;
1261                 $wcy_cq = $dxcc[1]->cq;
1262         }
1263         @dxcc = Prefix::extract($_[12]);
1264         if (@dxcc > 0) {
1265                 $org_dxcc = $dxcc[1]->dxcc;
1266                 $org_itu = $dxcc[1]->itu;
1267                 $org_cq = $dxcc[1]->cq;
1268         }
1269
1270         # send it if it isn't the except list and isn't isolated and still has a hop count
1271         # taking into account filtering and so on
1272         foreach $dxchan (@dxchan) {
1273                 next if $dxchan == $me;
1274                 my $routeit;
1275                 my ($filter, $hops);
1276
1277                 if ($dxchan->{wcyfilter}) {
1278                         ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1279                          next unless $filter;
1280                 }
1281                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1282                         if ($hops) {
1283                                 $routeit = $line;
1284                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1285                         } else {
1286                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1287                                 next unless $routeit;
1288                         }
1289                         if ($filter) {
1290                                 $dxchan->send($routeit) if $routeit;
1291                         } else {
1292                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1293                         }
1294                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1295                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1296                         $buf .= "\a\a" if $dxchan->{beep};
1297                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1298                                 $dxchan->send($buf);
1299                         } else {
1300                                 $dxchan->delay($buf);
1301                         }
1302                 }
1303         }
1304 }
1305
1306 # send an announce
1307 sub send_announce
1308 {
1309         my $self = shift;
1310         my $line = shift;
1311         my @dxchan = DXChannel->get_all();
1312         my $dxchan;
1313         my $text = unpad($_[2]);
1314         my $target;
1315         my $to = 'To ';
1316
1317         if ($_[3] eq '*') {     # sysops
1318                 $target = "SYSOP";
1319         } elsif ($_[3] gt ' ') { # speciality list handling
1320                 my ($name) = split /\./, $_[3];
1321                 $target = "$name"; # put the rest in later (if bothered)
1322         }
1323
1324         if ($_[5] eq '1') {
1325                 $target = "WX";
1326                 $to = '';
1327         }
1328         $target = "ALL" if !$target;
1329
1330         Log('ann', $target, $_[0], $text);
1331
1332         # obtain country codes etc
1333         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1334         my @dxcc = Prefix::extract($_[0]);
1335         if (@dxcc > 0) {
1336                 $ann_dxcc = $dxcc[1]->dxcc;
1337                 $ann_itu = $dxcc[1]->itu;
1338                 $ann_cq = $dxcc[1]->cq;
1339         }
1340         @dxcc = Prefix::extract($_[4]);
1341         if (@dxcc > 0) {
1342                 $org_dxcc = $dxcc[1]->dxcc;
1343                 $org_itu = $dxcc[1]->itu;
1344                 $org_cq = $dxcc[1]->cq;
1345         }
1346
1347         # send it if it isn't the except list and isn't isolated and still has a hop count
1348         # taking into account filtering and so on
1349         foreach $dxchan (@dxchan) {
1350                 next if $dxchan == $self;
1351                 next if $dxchan == $me;
1352                 my $routeit;
1353                 my ($filter, $hops);
1354
1355                 if ($dxchan->{annfilter}) {
1356                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1357                         next unless $filter;
1358                 }
1359                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1360                         if ($hops) {
1361                                 $routeit = $line;
1362                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1363                         } else {
1364                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1365                                 next unless $routeit;
1366                         }
1367                         if ($filter) {
1368                                 $dxchan->send($routeit) if $routeit;
1369                         } else {
1370                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1371
1372                         }
1373                 } elsif ($dxchan->is_user) {
1374                         unless ($dxchan->{ann}) {
1375                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1376                         }
1377                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1378                         my $buf = "$to$target de $_[0]: $text";
1379                         $buf =~ s/\%5E/^/g;
1380                         $buf .= "\a\a" if $dxchan->{beep};
1381                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1382                                 $dxchan->send($buf);
1383                         } else {
1384                                 $dxchan->delay($buf);
1385                         }
1386                 }
1387         }
1388 }
1389
1390 sub send_local_config
1391 {
1392         my $self = shift;
1393         my $n;
1394         my @nodes;
1395         my @localnodes;
1396         my @remotenodes;
1397
1398         dbg('trace', 'DXProt::send_local_config');
1399
1400         # send our nodes
1401         if ($self->{isolate}) {
1402                 @localnodes = ( $main::routeroot );
1403         } else {
1404                 # create a list of all the nodes that are not connected to this connection
1405                 # and are not themselves isolated, this to make sure that isolated nodes
1406         # don't appear outside of this node
1407                 my @dxchan = grep { $_->call ne $main::mycall && $_->call ne $self->{call} } DXChannel::get_all_nodes();
1408                 @localnodes = map { Route::Node::get($_->{call}) or die "connot find node $_->{call}" } @dxchan if @dxchan;
1409                 my @intcalls = map { $_->nodes } @localnodes if @localnodes;
1410                 my $ref = Route::Node::get($self->{call});
1411                 my @rnodes = $ref->nodes;
1412                 for my $n (@intcalls) {
1413                         push @remotenodes, Route::Node::get($n) unless grep $n eq $_, @rnodes;
1414                 }
1415                 unshift @localnodes, $main::routeroot;
1416         }
1417
1418         send_route($self, \&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
1419
1420         # get all the users connected on the above nodes and send them out
1421         foreach $n (@localnodes, @remotenodes) {
1422                 send_route($self, \&pc16, 1, $n, map {my $r = Route::User::get($_); $r ? ($r) : ()} $n->users);
1423         }
1424 }
1425
1426 #
1427 # route a message down an appropriate interface for a callsign
1428 #
1429 # is called route(to, pcline);
1430 #
1431 sub route
1432 {
1433         my ($self, $call, $line) = @_;
1434
1435         if (ref $self && $call eq $self->{call}) {
1436                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1437                 return;
1438         }
1439
1440         # always send it down the local interface if available
1441         my $dxchan = DXChannel->get($call);
1442         unless ($dxchan) {
1443                 my $cl = Route::Node::get($call);
1444                 $dxchan = $cl->dxchan if $cl;
1445                 if (ref $dxchan) {
1446                         if (ref $self && $dxchan eq $self) {
1447                                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1448                                 return;
1449                         }
1450                 }
1451         }
1452         if ($dxchan) {
1453                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1454                 if ($routeit) {
1455                         $dxchan->send($routeit);
1456                 }
1457         } else {
1458                 dbg('chan', "PCPROT: No route available, dropped");
1459         }
1460 }
1461
1462 # broadcast a message to all clusters taking into account isolation
1463 # [except those mentioned after buffer]
1464 sub broadcast_ak1a
1465 {
1466         my $s = shift;                          # the line to be rebroadcast
1467         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1468         my @dxchan = DXChannel::get_all_nodes();
1469         my $dxchan;
1470
1471         # send it if it isn't the except list and isn't isolated and still has a hop count
1472         foreach $dxchan (@dxchan) {
1473                 next if grep $dxchan == $_, @except;
1474                 next if $dxchan == $me;
1475
1476                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1477                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1478         }
1479 }
1480
1481 # broadcast a message to all clusters ignoring isolation
1482 # [except those mentioned after buffer]
1483 sub broadcast_all_ak1a
1484 {
1485         my $s = shift;                          # the line to be rebroadcast
1486         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1487         my @dxchan = DXChannel::get_all_nodes();
1488         my $dxchan;
1489
1490         # send it if it isn't the except list and isn't isolated and still has a hop count
1491         foreach $dxchan (@dxchan) {
1492                 next if grep $dxchan == $_, @except;
1493                 next if $dxchan == $me;
1494
1495                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1496                 $dxchan->send($routeit);
1497         }
1498 }
1499
1500 # broadcast to all users
1501 # storing the spot or whatever until it is in a state to receive it
1502 sub broadcast_users
1503 {
1504         my $s = shift;                          # the line to be rebroadcast
1505         my $sort = shift;           # the type of transmission
1506         my $fref = shift;           # a reference to an object to filter on
1507         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1508         my @dxchan = DXChannel::get_all_users();
1509         my $dxchan;
1510         my @out;
1511
1512         foreach $dxchan (@dxchan) {
1513                 next if grep $dxchan == $_, @except;
1514                 push @out, $dxchan;
1515         }
1516         broadcast_list($s, $sort, $fref, @out);
1517 }
1518
1519 # broadcast to a list of users
1520 sub broadcast_list
1521 {
1522         my $s = shift;
1523         my $sort = shift;
1524         my $fref = shift;
1525         my $dxchan;
1526
1527         foreach $dxchan (@_) {
1528                 my $filter = 1;
1529                 next if $dxchan == $me;
1530
1531                 if ($sort eq 'dx') {
1532                     next unless $dxchan->{dx};
1533                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1534                         next unless $filter;
1535                 }
1536                 next if $sort eq 'ann' && !$dxchan->{ann};
1537                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1538                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1539                 next if $sort eq 'wx' && !$dxchan->{wx};
1540
1541                 $s =~ s/\a//og unless $dxchan->{beep};
1542
1543                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1544                         $dxchan->send($s);
1545                 } else {
1546                         $dxchan->delay($s);
1547                 }
1548         }
1549 }
1550
1551
1552 #
1553 # obtain the hops from the list for this callsign and pc no
1554 #
1555
1556 sub get_hops
1557 {
1558         my $pcno = shift;
1559         my $hops = $DXProt::hopcount{$pcno};
1560         $hops = $DXProt::def_hopcount if !$hops;
1561         return "H$hops";
1562 }
1563
1564 #
1565 # adjust the hop count on a per node basis using the user loadable
1566 # hop table if available or else decrement an existing one
1567 #
1568
1569 sub adjust_hops
1570 {
1571         my $self = shift;
1572         my $s = shift;
1573         my $call = $self->{call};
1574         my $hops;
1575
1576         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1577                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1578                 confess "$call called adjust_hops with '$s'" unless $pcno;
1579                 my $ref = $nodehops{$call} if %nodehops;
1580                 if ($ref) {
1581                         my $newhops = $ref->{$pcno};
1582                         return "" if defined $newhops && $newhops == 0;
1583                         $newhops = $ref->{default} unless $newhops;
1584                         return "" if defined $newhops && $newhops == 0;
1585                         $newhops = $hops if !$newhops;
1586                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1587                 } else {
1588                         # simply decrement it
1589                         $hops--;
1590                         return "" if !$hops;
1591                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1592                 }
1593         }
1594         return $s;
1595 }
1596
1597 #
1598 # load hop tables
1599 #
1600 sub load_hops
1601 {
1602         my $self = shift;
1603         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1604         do "$main::data/hop_table.pl";
1605         return $@ if $@;
1606         return 0;
1607 }
1608
1609
1610 # add a ping request to the ping queues
1611 sub addping
1612 {
1613         my ($from, $to) = @_;
1614         my $ref = $pings{$to} || [];
1615         my $r = {};
1616         $r->{call} = $from;
1617         $r->{t} = [ gettimeofday ];
1618         route(undef, $to, pc51($to, $main::mycall, 1));
1619         push @$ref, $r;
1620         $pings{$to} = $ref;
1621 }
1622
1623 # add a rcmd request to the rcmd queues
1624 sub addrcmd
1625 {
1626         my ($self, $to, $cmd) = @_;
1627
1628         my $r = {};
1629         $r->{call} = $self->{call};
1630         $r->{t} = $main::systime;
1631         $r->{cmd} = $cmd;
1632         $rcmds{$to} = $r;
1633
1634         my $ref = Route::Node::get($to);
1635         my $dxchan = $ref->dxchan;
1636     if ($dxchan && $dxchan->is_clx) {
1637                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1638         } else {
1639                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1640         }
1641 }
1642
1643 sub disconnect
1644 {
1645         my $self = shift;
1646         my $pc39flag = shift;
1647         my $call = $self->call;
1648
1649         unless ($pc39flag && $pc39flag == 1) {
1650                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1651         }
1652
1653         # do routing stuff
1654 #       my $node = Route::Node::get($self->{call});
1655 #       my @rout = $node->del_nodes if $node;
1656         my @rout = $main::routeroot->del_node($call);
1657         dbg('route', "B/C PC21 (from PC39) for: " . join(',', (map{ $_->call } @rout))) if @rout;
1658
1659         # unbusy and stop and outgoing mail
1660         my $mref = DXMsg::get_busy($call);
1661         $mref->stop_msg($call) if $mref;
1662
1663         # broadcast to all other nodes that all the nodes connected to via me are gone
1664         unless ($pc39flag && $pc39flag == 2) {
1665                 $self->route_pc21(@rout) if @rout;
1666         }
1667
1668         # remove outstanding pings
1669         delete $pings{$call};
1670
1671         # I was the last node visited
1672     $self->user->node($main::mycall);
1673
1674         # send info to all logged in thingies
1675         $self->tell_login('logoutn');
1676
1677         Log('DXProt', $call . " Disconnected");
1678
1679         $self->SUPER::disconnect;
1680 }
1681
1682
1683 #
1684 # send a talk message to this thingy
1685 #
1686 sub talk
1687 {
1688         my ($self, $from, $to, $via, $line) = @_;
1689
1690         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1691         $self->send(DXProt::pc10($from, $to, $via, $line));
1692         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1693 }
1694
1695 # send it if it isn't the except list and isn't isolated and still has a hop count
1696 # taking into account filtering and so on
1697 sub send_route
1698 {
1699         my $self = shift;
1700         my $generate = shift;
1701         my $no = shift;     # the no of things to filter on
1702         my $routeit;
1703         my ($filter, $hops);
1704         my @rin;
1705
1706         if ($self->{routefilter}) {
1707                 for (; @_ && $no; $no--) {
1708                         my $r = shift;
1709                         ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1710                         push @rin, $r if $filter;
1711                 }
1712         }
1713         if (@rin) {
1714                 foreach my $line (&$generate(@rin, @_)) {
1715                         if ($hops) {
1716                                 $routeit = $line;
1717                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1718                         } else {
1719                                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1720                                 next unless $routeit;
1721                         }
1722                         $self->send($routeit);
1723                 }
1724         }
1725 }
1726
1727 sub broadcast_route
1728 {
1729         my $self = shift;
1730         my $generate = shift;
1731         my @dxchan = DXChannel::get_all_nodes();
1732         my $dxchan;
1733         my $line;
1734
1735         foreach $dxchan (@dxchan) {
1736                 next if $dxchan == $self;
1737                 next if $dxchan == $me;
1738                 $dxchan->send_route($generate, @_);
1739         }
1740 }
1741
1742 sub route_pc16
1743 {
1744         my $self = shift;
1745         broadcast_route($self, \&pc16, 1, @_);
1746 }
1747
1748 sub route_pc17
1749 {
1750         my $self = shift;
1751         broadcast_route($self, \&pc17, 1, @_);
1752 }
1753
1754 sub route_pc19
1755 {
1756         my $self = shift;
1757         broadcast_route($self, \&pc19, scalar @_, @_);
1758 }
1759
1760 sub route_pc21
1761 {
1762         my $self = shift;
1763         broadcast_route($self, \&pc21, scalar @_, @_);
1764 }
1765
1766 sub eph_dup
1767 {
1768         my $s = shift;
1769
1770         # chop the end off
1771         $s =~ s/\^H\d\d?\^?~?@//;
1772         return 1 if exists $eph{$s};
1773         $eph{$s} = $main::systime;
1774         return undef;
1775 }
1776
1777 sub eph_clean
1778 {
1779         my ($key, $val);
1780
1781         while (($key, $val) = each %eph) {
1782                 if ($main::systime - $val > 90) {
1783                         delete $eph{$key};
1784                 }
1785         }
1786 }
1787
1788 1;
1789 __END__