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 @rout = $parent->del_user($ucall);
 604                         $self->route_pc17($parent, @rout) if @rout;
 605                         return;
 606                 }
 607
 608                 if ($pcno == 18) {              # link request
 609                         $self->state('init');
 610
 611                         # first clear out any nodes on this dxchannel
 612                         my $parent = Route::Node::get($self->{call});
 613                         my @rout;
 614                         for ($parent->nodes) {
 615                                 my $r = Route::Node::get($_);
 616                                 push @rout, $r->del_node if $r;
 617                         }
 618                         $self->route_pc21(@rout, $parent);
 619                         $self->send_local_config();
 620                         $self->send(pc20());
 621                         return;             # we don't pass these on
 622                 }
 623
 624                 if ($pcno == 19) {              # incoming cluster list
 625                         my $i;
 626                         my $newline = "PC19^";
 627
 628                         # new routing list
 629                         my @rout;
 630                         my $parent = Route::Node::get($self->{call});
 631
 632                         # parse the PC19
 633                         for ($i = 1; $i < $#field-1; $i += 4) {
 634                                 my $here = $field[$i];
 635                                 my $call = uc $field[$i+1];
 636                                 my $conf = $field[$i+2];
 637                                 my $ver = $field[$i+3];
 638                                 next unless defined $here && defined $conf && is_callsign($call);
 639                                 # check for sane parameters
 640                                 $ver = 5000 if $ver eq '0000';
 641                                 next if $ver < 5000; # only works with version 5 software
 642                                 next if length $call < 3; # min 3 letter callsigns
 643
 644                                 # update it if required
 645                                 my $r;
 646                                 my $flags = Route::here($here)|Route::conf($conf);
 647                                 if ($parent->call eq $call && ($parent->version ne $ver || $parent->flags != $flags)) {
 648                                         $parent->version($ver);
 649                                         $parent->flags($flags);
 650                                         push @rout, $parent;
 651                                 } elsif ($parent->call ne $call) {
 652                                         next if $call eq $main::mycall || $call eq $self->{call};
 653
 654                                         my $r = $parent->add($call, $ver, Route::here($here)|Route::conf($conf));
 655                                         push @rout, $r if $r;
 656                                 } else {
 657                                         $r = Route::Node::get($call);
 658                                         if ($r && ($r->version ne $ver || $r->flags != $flags)) {
 659                                                 $r->version($ver);
 660                                                 $r->flags(Route::here($here)|Route::conf($conf));
 661                                                 push @rout, $r;
 662                                         }
 663                                 }
 664
 665                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 666                                 my $mref = DXMsg::get_busy($call);
 667                                 $mref->stop_msg($call) if $mref;
 668
 669                                 # add this station to the user database, if required (don't remove SSID from nodes)
 670                                 my $user = DXUser->get_current($call);
 671                                 if (!$user) {
 672                                         $user = DXUser->new($call);
 673                                         $user->sort('A');
 674                                         $user->priv(1);                   # I have relented and defaulted nodes
 675                                         $self->{priv} = 1;                # to user RCMDs allowed
 676                                         $user->homenode($call);
 677                                         $user->node($call);
 678                                 }
 679                                 $user->lastin($main::systime) unless DXChannel->get($call);
 680                                 $user->put;
 681                         }
 682
 683                         $self->route_pc19(@rout) if @rout;
 684                         return;
 685                 }
 686
 687                 if ($pcno == 20) {              # send local configuration
 688                         $self->send_local_config();
 689                         $self->send(pc22());
 690                         $self->state('normal');
 691                         return;
 692                 }
 693
 694                 if ($pcno == 21) {              # delete a cluster from the list
 695                         my $call = uc $field[1];
 696                         my @rout;
 697                         my $parent = Route::Node::get($self->{call});
 698                         unless ($parent) {
 699                                 dbg('chan', "PCPROT: Route::Node $call not in config");
 700                                 return;
 701                         }
 702                         my $node = Route::Node::get($call);
 703
 704                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 705                                 if ($call eq $self->{call}) {
 706                                         dbg('chan', "PCPROT: Trying to disconnect myself with PC21");
 707                                         return;
 708                                 }
 709
 710                                 # routing objects
 711                                 push @rout, $node->del($parent) if $node;
 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
 776                         $self->route_pc24($ref, $field[3]) if $ref && !eph_dup($line);
 777                         return;
 778                 }
 779
 780                 if ($pcno == 25) {      # merge request
 781                         if ($field[1] ne $main::mycall) {
 782                                 $self->route($field[1], $line);
 783                                 return;
 784                         }
 785                         if ($field[2] eq $main::mycall) {
 786                                 dbg('chan', "PCPROT: Trying to merge to myself, ignored");
 787                                 return;
 788                         }
 789
 790                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 791
 792                         # spots
 793                         if ($field[3] > 0) {
 794                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 795                                 my $in;
 796                                 foreach $in (@in) {
 797                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 798                                 }
 799                         }
 800
 801                         # wwv
 802                         if ($field[4] > 0) {
 803                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 804                                 my $in;
 805                                 foreach $in (@in) {
 806                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 807                                 }
 808                         }
 809                         return;
 810                 }
 811
 812                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 813                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 814                                 DXMsg::process($self, $line);
 815                         } else {
 816                                 $self->route($field[1], $line) unless $self->is_clx;
 817                         }
 818                         return;
 819                 }
 820
 821                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 822                         if ($field[1] eq $main::mycall) {
 823                                 my $ref = DXUser->get_current($field[2]);
 824                                 my $cref = Route::Node::get($field[2]);
 825                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 826                                 unless (!$cref || !$ref || $cref->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 827                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 828                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 829                                                 my $oldpriv = $self->{priv};
 830                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 831                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 832                                                 $self->{priv} = $oldpriv;
 833                                                 for (@in) {
 834                                                         s/\s*$//og;
 835                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 836                                                         Log('rcmd', 'out', $field[2], $_);
 837                                                 }
 838                                                 delete $self->{remotecmd};
 839                                         } else {
 840                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 841                                         }
 842                                 } else {
 843                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 844                                 }
 845                         } else {
 846                                 my $ref = DXUser->get_current($field[1]);
 847                                 if ($ref && $ref->is_clx) {
 848                                         $self->route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 849                                 } else {
 850                                         $self->route($field[1], $line);
 851                                 }
 852                         }
 853                         return;
 854                 }
 855
 856                 if ($pcno == 35) {              # remote command replies
 857                         if ($field[1] eq $main::mycall) {
 858                                 my $s = $rcmds{$field[2]};
 859                                 if ($s) {
 860                                         my $dxchan = DXChannel->get($s->{call});
 861                                         $dxchan->send($field[3]) if $dxchan;
 862                                         delete $rcmds{$field[2]} if !$dxchan;
 863                                 } else {
 864                                         # send unsolicited ones to the sysop
 865                                         my $dxchan = DXChannel->get($main::myalias);
 866                                         $dxchan->send($field[3]) if $dxchan;
 867                                 }
 868                         } else {
 869                                 my $ref = DXUser->get_current($field[1]);
 870                                 if ($ref && $ref->is_clx) {
 871                                         $self->route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 872                                 } else {
 873                                         $self->route($field[1], $line);
 874                                 }
 875                         }
 876                         return;
 877                 }
 878
 879                 # for pc 37 see 44 onwards
 880
 881                 if ($pcno == 38) {              # node connected list from neighbour
 882                         return;
 883                 }
 884
 885                 if ($pcno == 39) {              # incoming disconnect
 886                         if ($field[1] eq $self->{call}) {
 887                                 $self->disconnect(1);
 888                         } else {
 889                                 dbg('chan', "PCPROT: came in on wrong channel");
 890                         }
 891                         return;
 892                 }
 893
 894                 if ($pcno == 41) {              # user info
 895                         # add this station to the user database, if required
 896                         my $call = $field[1];
 897                         my $user = DXUser->get_current($call);
 898                         $user = DXUser->new($call) if !$user;
 899
 900                         if ($field[2] == 1) {
 901                                 $user->name($field[3]);
 902                         } elsif ($field[2] == 2) {
 903                                 $user->qth($field[3]);
 904                         } elsif ($field[2] == 3) {
 905                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 906                                 $user->lat($lat);
 907                                 $user->long($long);
 908                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 909                         } elsif ($field[2] == 4) {
 910                                 $user->homenode($field[3]);
 911                         }
 912                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 913                         $user->put;
 914                         my $ref = Route::get($call);
 915                         $self->route_pc41($ref, $call, $field[2], $field[3], $field[4]) if $ref && !eph_dup($line);
 916                         return;
 917                 }
 918
 919                 if ($pcno == 43) {
 920                         last SWITCH;
 921                 }
 922
 923                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 924                         DXDb::process($self, $line);
 925                         return;
 926                 }
 927
 928                 if ($pcno == 50) {              # keep alive/user list
 929                         my $call = $field[1];
 930                         my $node = Route::Node::get($call);
 931                         if ($node) {
 932                                 return unless $node->call eq $self->{call};
 933                                 $node->usercount($field[2]);
 934                                 $self->route_pc50($node, $field[2], $field[3]) unless eph_dup($line);
 935                         }
 936                         return;
 937                 }
 938
 939                 if ($pcno == 51) {              # incoming ping requests/answers
 940                         my $to = $field[1];
 941                         my $from = $field[2];
 942                         my $flag = $field[3];
 943
 944                         # is it for us?
 945                         if ($to eq $main::mycall) {
 946                                 if ($flag == 1) {
 947                                         $self->send(pc51($from, $to, '0'));
 948                                 } else {
 949                                         # it's a reply, look in the ping list for this one
 950                                         my $ref = $pings{$from};
 951                                         if ($ref) {
 952                                                 my $tochan =  DXChannel->get($from);
 953                                                 while (@$ref) {
 954                                                         my $r = shift @$ref;
 955                                                         my $dxchan = DXChannel->get($r->{call});
 956                                                         next unless $dxchan;
 957                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 958                                                         if ($dxchan->is_user) {
 959                                                                 my $s = sprintf "%.2f", $t;
 960                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 961                                                                 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
 962                                                         } elsif ($dxchan->is_node) {
 963                                                                 if ($tochan) {
 964                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
 965                                                                         push @{$tochan->{pingtime}}, $t;
 966                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 967                                                                         my $st;
 968                                                                         for (@{$tochan->{pingtime}}) {
 969                                                                                 $st += $_;
 970                                                                         }
 971                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 972                                                                 }
 973                                                         }
 974                                                 }
 975                                         }
 976                                 }
 977                         } else {
 978                                 # route down an appropriate thingy
 979                                 $self->route($to, $line);
 980                         }
 981                         return;
 982                 }
 983
 984                 if ($pcno == 75) {              # dunno but route it
 985                         my $call = $field[1];
 986                         if ($call ne $main::mycall) {
 987                                 $self->route($call, $line);
 988                         }
 989                         return;
 990                 }
 991
 992                 if ($pcno == 73) {  # WCY broadcasts
 993                         my $call = $field[1];
 994
 995                         # do some de-duping
 996                         my $d = cltounix($call, sprintf("%02d18Z", $field[2]));
 997                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 998                                 dbg('chan', "PCPROT: WCY Date ($call $field[2]) out of range");
 999                                 return;
1000                         }
1001                         @field = map { unpad($_) } @field;
1002                         if (WCY::dup($d,@field[3..7])) {
1003                                 dbg('chan', "PCPROT: Dup WCY Spot ignored\n");
1004                                 return;
1005                         }
1006
1007                         my $wcy = WCY::update($d, @field[2..12]);
1008
1009                         my $rep;
1010                         eval {
1011                                 $rep = Local::wwv($self, @field[1..12]);
1012                         };
1013                         # dbg('local', "Local::wcy error $@") if $@;
1014                         return if $rep;
1015
1016                         # broadcast to the eager world
1017                         send_wcy_spot($self, $line, $d, @field[2..12]);
1018                         return;
1019                 }
1020
1021                 if ($pcno == 84) { # remote commands (incoming)
1022                         my $call = $field[1];
1023                         if ($call eq $main::mycall) {
1024                                 my $ref = DXUser->get_current($field[2]);
1025                                 my $cref = Route::Node::get($field[2]);
1026                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1027                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1028                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1029                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1030                                                 my $oldpriv = $self->{priv};
1031                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1032                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1033                                                 $self->{priv} = $oldpriv;
1034                                                 for (@in) {
1035                                                         s/\s*$//og;
1036                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1037                                                         Log('rcmd', 'out', $field[2], $_);
1038                                                 }
1039                                                 delete $self->{remotecmd};
1040                                         } else {
1041                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1042                                         }
1043                                 } else {
1044                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1045                                 }
1046                         } else {
1047                                 my $ref = DXUser->get_current($call);
1048                                 if ($ref && $ref->is_clx) {
1049                                         $self->route($call, $line);
1050                                 } else {
1051                                         $self->route($call, pc34($field[2], $call, $field[4]));
1052                                 }
1053                         }
1054                         return;
1055                 }
1056
1057                 if ($pcno == 85) {              # remote command replies
1058                         my $call = $field[1];
1059                         if ($call eq $main::mycall) {
1060                                 my $dxchan = DXChannel->get($field[3]);
1061                                 if ($dxchan) {
1062                                         $dxchan->send($field[4]);
1063                                 } else {
1064                                         my $s = $rcmds{$field[2]};
1065                                         if ($s) {
1066                                                 $dxchan = DXChannel->get($s->{call});
1067                                                 $dxchan->send($field[4]) if $dxchan;
1068                                                 delete $rcmds{$field[2]} if !$dxchan;
1069                                         } else {
1070                                                 # send unsolicited ones to the sysop
1071                                                 my $dxchan = DXChannel->get($main::myalias);
1072                                                 $dxchan->send($field[4]) if $dxchan;
1073                                         }
1074                                 }
1075                         } else {
1076                                 my $ref = DXUser->get_current($call);
1077                                 if ($ref && $ref->is_clx) {
1078                                         $self->route($call, $line);
1079                                 } else {
1080                                         $self->route($call, pc35($field[2], $call, $field[4]));
1081                                 }
1082                         }
1083                         return;
1084                 }
1085         }
1086
1087         # if get here then rebroadcast the thing with its Hop count decremented (if
1088         # there is one). If it has a hop count and it decrements to zero then don't
1089         # rebroadcast it.
1090         #
1091         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1092         #        REBROADCAST!!!!
1093         #
1094
1095         if (eph_dup($line)) {
1096                 dbg('chan', "PCPROT: Ephemeral dup, dropped");
1097         } else {
1098                 unless ($self->{isolate}) {
1099                         broadcast_ak1a($line, $self); # send it to everyone but me
1100                 }
1101         }
1102 }
1103
1104 #
1105 # This is called from inside the main cluster processing loop and is used
1106 # for despatching commands that are doing some long processing job
1107 #
1108 sub process
1109 {
1110         my $t = time;
1111         my @dxchan = DXChannel->get_all();
1112         my $dxchan;
1113
1114         foreach $dxchan (@dxchan) {
1115                 next unless $dxchan->is_node();
1116                 next if $dxchan == $me;
1117
1118                 # send a pc50 out on this channel
1119                 $dxchan->{pc50_t} = $main::systime unless exists $dxchan->{pc50_t};
1120                 if ($t >= $dxchan->{pc50_t} + $DXProt::pc50_interval) {
1121                         my $s = pc50($me, scalar DXChannel::get_all_users);
1122                         eph_dup($s);
1123                         $dxchan->send($s);
1124                         $dxchan->{pc50_t} = $t;
1125                 }
1126
1127                 # send a ping out on this channel
1128                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1129                         if ($dxchan->{nopings} <= 0) {
1130                                 $dxchan->disconnect;
1131                         } else {
1132                                 addping($main::mycall, $dxchan->call);
1133                                 $dxchan->{nopings} -= 1;
1134                                 $dxchan->{lastping} = $t;
1135                         }
1136                 }
1137         }
1138
1139         # every ten seconds
1140         if ($t - $last10 >= 10) {
1141                 # clean out ephemera
1142
1143                 eph_clean();
1144
1145                 $last10 = $t;
1146         }
1147
1148         if ($main::systime - 3600 > $last_hour) {
1149                 $last_hour = $main::systime;
1150         }
1151 }
1152
1153 #
1154 # finish up a pc context
1155 #
1156
1157 #
1158 # some active measures
1159 #
1160
1161 sub send_dx_spot
1162 {
1163         my $self = shift;
1164         my $line = shift;
1165         my @dxchan = DXChannel->get_all();
1166         my $dxchan;
1167
1168         # send it if it isn't the except list and isn't isolated and still has a hop count
1169         # taking into account filtering and so on
1170         foreach $dxchan (@dxchan) {
1171                 next if $dxchan == $me;
1172                 my $routeit;
1173                 my ($filter, $hops);
1174
1175                 if ($dxchan->{spotsfilter}) {
1176                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1177                         next unless $filter;
1178                 }
1179
1180                 if ($dxchan->is_node) {
1181                         next if $dxchan == $self;
1182                         if ($hops) {
1183                                 $routeit = $line;
1184                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1185                         } else {
1186                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1187                                 next unless $routeit;
1188                         }
1189                         if ($filter) {
1190                                 $dxchan->send($routeit) if $routeit;
1191                         } else {
1192                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1193                         }
1194                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1195                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1196                         $buf .= "\a\a" if $dxchan->{beep};
1197                         $buf =~ s/\%5E/^/g;
1198                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1199                                 $dxchan->send($buf);
1200                         } else {
1201                                 $dxchan->delay($buf);
1202                         }
1203                 }
1204         }
1205 }
1206
1207 sub send_wwv_spot
1208 {
1209         my $self = shift;
1210         my $line = shift;
1211         my @dxchan = DXChannel->get_all();
1212         my $dxchan;
1213         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1214         my @dxcc = Prefix::extract($_[7]);
1215         if (@dxcc > 0) {
1216                 $wwv_dxcc = $dxcc[1]->dxcc;
1217                 $wwv_itu = $dxcc[1]->itu;
1218                 $wwv_cq = $dxcc[1]->cq;
1219         }
1220         @dxcc = Prefix::extract($_[8]);
1221         if (@dxcc > 0) {
1222                 $org_dxcc = $dxcc[1]->dxcc;
1223                 $org_itu = $dxcc[1]->itu;
1224                 $org_cq = $dxcc[1]->cq;
1225         }
1226
1227         # send it if it isn't the except list and isn't isolated and still has a hop count
1228         # taking into account filtering and so on
1229         foreach $dxchan (@dxchan) {
1230                 next if $dxchan == $self;
1231                 next if $dxchan == $me;
1232                 my $routeit;
1233                 my ($filter, $hops);
1234
1235                 if ($dxchan->{wwvfilter}) {
1236                         ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1237                          next unless $filter;
1238                 }
1239                 if ($dxchan->is_node) {
1240                         if ($hops) {
1241                                 $routeit = $line;
1242                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1243                         } else {
1244                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1245                                 next unless $routeit;
1246                         }
1247                         if ($filter) {
1248                                 $dxchan->send($routeit) if $routeit;
1249                         } else {
1250                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1251
1252                         }
1253                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1254                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1255                         $buf .= "\a\a" if $dxchan->{beep};
1256                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1257                                 $dxchan->send($buf);
1258                         } else {
1259                                 $dxchan->delay($buf);
1260                         }
1261                 }
1262         }
1263 }
1264
1265 sub send_wcy_spot
1266 {
1267         my $self = shift;
1268         my $line = shift;
1269         my @dxchan = DXChannel->get_all();
1270         my $dxchan;
1271         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1272         my @dxcc = Prefix::extract($_[11]);
1273         if (@dxcc > 0) {
1274                 $wcy_dxcc = $dxcc[1]->dxcc;
1275                 $wcy_itu = $dxcc[1]->itu;
1276                 $wcy_cq = $dxcc[1]->cq;
1277         }
1278         @dxcc = Prefix::extract($_[12]);
1279         if (@dxcc > 0) {
1280                 $org_dxcc = $dxcc[1]->dxcc;
1281                 $org_itu = $dxcc[1]->itu;
1282                 $org_cq = $dxcc[1]->cq;
1283         }
1284
1285         # send it if it isn't the except list and isn't isolated and still has a hop count
1286         # taking into account filtering and so on
1287         foreach $dxchan (@dxchan) {
1288                 next if $dxchan == $me;
1289                 my $routeit;
1290                 my ($filter, $hops);
1291
1292                 if ($dxchan->{wcyfilter}) {
1293                         ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1294                          next unless $filter;
1295                 }
1296                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1297                         if ($hops) {
1298                                 $routeit = $line;
1299                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1300                         } else {
1301                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1302                                 next unless $routeit;
1303                         }
1304                         if ($filter) {
1305                                 $dxchan->send($routeit) if $routeit;
1306                         } else {
1307                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1308                         }
1309                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1310                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1311                         $buf .= "\a\a" if $dxchan->{beep};
1312                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1313                                 $dxchan->send($buf);
1314                         } else {
1315                                 $dxchan->delay($buf);
1316                         }
1317                 }
1318         }
1319 }
1320
1321 # send an announce
1322 sub send_announce
1323 {
1324         my $self = shift;
1325         my $line = shift;
1326         my @dxchan = DXChannel->get_all();
1327         my $dxchan;
1328         my $text = unpad($_[2]);
1329         my $target;
1330         my $to = 'To ';
1331
1332         if ($_[3] eq '*') {     # sysops
1333                 $target = "SYSOP";
1334         } elsif ($_[3] gt ' ') { # speciality list handling
1335                 my ($name) = split /\./, $_[3];
1336                 $target = "$name"; # put the rest in later (if bothered)
1337         }
1338
1339         if ($_[5] eq '1') {
1340                 $target = "WX";
1341                 $to = '';
1342         }
1343         $target = "ALL" if !$target;
1344
1345         Log('ann', $target, $_[0], $text);
1346
1347         # obtain country codes etc
1348         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1349         my @dxcc = Prefix::extract($_[0]);
1350         if (@dxcc > 0) {
1351                 $ann_dxcc = $dxcc[1]->dxcc;
1352                 $ann_itu = $dxcc[1]->itu;
1353                 $ann_cq = $dxcc[1]->cq;
1354         }
1355         @dxcc = Prefix::extract($_[4]);
1356         if (@dxcc > 0) {
1357                 $org_dxcc = $dxcc[1]->dxcc;
1358                 $org_itu = $dxcc[1]->itu;
1359                 $org_cq = $dxcc[1]->cq;
1360         }
1361
1362         # send it if it isn't the except list and isn't isolated and still has a hop count
1363         # taking into account filtering and so on
1364         foreach $dxchan (@dxchan) {
1365                 next if $dxchan == $self;
1366                 next if $dxchan == $me;
1367                 my $routeit;
1368                 my ($filter, $hops);
1369
1370                 if ($dxchan->{annfilter}) {
1371                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1372                         next unless $filter;
1373                 }
1374                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1375                         if ($hops) {
1376                                 $routeit = $line;
1377                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1378                         } else {
1379                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1380                                 next unless $routeit;
1381                         }
1382                         if ($filter) {
1383                                 $dxchan->send($routeit) if $routeit;
1384                         } else {
1385                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1386
1387                         }
1388                 } elsif ($dxchan->is_user) {
1389                         unless ($dxchan->{ann}) {
1390                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1391                         }
1392                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1393                         my $buf = "$to$target de $_[0]: $text";
1394                         $buf =~ s/\%5E/^/g;
1395                         $buf .= "\a\a" if $dxchan->{beep};
1396                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1397                                 $dxchan->send($buf);
1398                         } else {
1399                                 $dxchan->delay($buf);
1400                         }
1401                 }
1402         }
1403 }
1404
1405 sub send_local_config
1406 {
1407         my $self = shift;
1408         my $n;
1409         my @nodes;
1410         my @localnodes;
1411         my @remotenodes;
1412
1413         dbg('trace', 'DXProt::send_local_config');
1414
1415         # send our nodes
1416         if ($self->{isolate}) {
1417                 @localnodes = ( $main::routeroot );
1418         } else {
1419                 # create a list of all the nodes that are not connected to this connection
1420                 # and are not themselves isolated, this to make sure that isolated nodes
1421         # don't appear outside of this node
1422                 my @dxchan = grep { $_->call ne $main::mycall && $_->call ne $self->{call} } DXChannel::get_all_nodes();
1423                 @localnodes = map { Route::Node::get($_->{call}) or die "connot find node $_->{call}" } @dxchan if @dxchan;
1424                 my @intcalls = map { $_->nodes } @localnodes if @localnodes;
1425                 my $ref = Route::Node::get($self->{call});
1426                 my @rnodes = $ref->nodes;
1427                 for my $n (@intcalls) {
1428                         push @remotenodes, Route::Node::get($n) unless grep $n eq $_, @rnodes;
1429                 }
1430                 unshift @localnodes, $main::routeroot;
1431         }
1432
1433         send_route($self, \&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
1434
1435         # get all the users connected on the above nodes and send them out
1436         foreach $n (@localnodes, @remotenodes) {
1437                 if ($n) {
1438                         send_route($self, \&pc16, 1, $n, map {my $r = Route::User::get($_); $r ? ($r) : ()} $n->users);
1439                 } else {
1440                         dbg('chan', "sent a null value");
1441                 }
1442         }
1443 }
1444
1445 #
1446 # route a message down an appropriate interface for a callsign
1447 #
1448 # is called route(to, pcline);
1449 #
1450 sub route
1451 {
1452         my ($self, $call, $line) = @_;
1453
1454         if (ref $self && $call eq $self->{call}) {
1455                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1456                 return;
1457         }
1458
1459         # always send it down the local interface if available
1460         my $dxchan = DXChannel->get($call);
1461         unless ($dxchan) {
1462                 my $cl = Route::Node::get($call);
1463                 $dxchan = $cl->dxchan if $cl;
1464                 if (ref $dxchan) {
1465                         if (ref $self && $dxchan eq $self) {
1466                                 dbg('chan', "PCPROT: Trying to route back to source, dropped");
1467                                 return;
1468                         }
1469                 }
1470         }
1471         if ($dxchan) {
1472                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1473                 if ($routeit) {
1474                         $dxchan->send($routeit);
1475                 }
1476         } else {
1477                 dbg('chan', "PCPROT: No route available, dropped");
1478         }
1479 }
1480
1481 # broadcast a message to all clusters taking into account isolation
1482 # [except those mentioned after buffer]
1483 sub broadcast_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) unless $dxchan->{isolate} || !$routeit;
1497         }
1498 }
1499
1500 # broadcast a message to all clusters ignoring isolation
1501 # [except those mentioned after buffer]
1502 sub broadcast_all_ak1a
1503 {
1504         my $s = shift;                          # the line to be rebroadcast
1505         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1506         my @dxchan = DXChannel::get_all_nodes();
1507         my $dxchan;
1508
1509         # send it if it isn't the except list and isn't isolated and still has a hop count
1510         foreach $dxchan (@dxchan) {
1511                 next if grep $dxchan == $_, @except;
1512                 next if $dxchan == $me;
1513
1514                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1515                 $dxchan->send($routeit);
1516         }
1517 }
1518
1519 # broadcast to all users
1520 # storing the spot or whatever until it is in a state to receive it
1521 sub broadcast_users
1522 {
1523         my $s = shift;                          # the line to be rebroadcast
1524         my $sort = shift;           # the type of transmission
1525         my $fref = shift;           # a reference to an object to filter on
1526         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1527         my @dxchan = DXChannel::get_all_users();
1528         my $dxchan;
1529         my @out;
1530
1531         foreach $dxchan (@dxchan) {
1532                 next if grep $dxchan == $_, @except;
1533                 push @out, $dxchan;
1534         }
1535         broadcast_list($s, $sort, $fref, @out);
1536 }
1537
1538 # broadcast to a list of users
1539 sub broadcast_list
1540 {
1541         my $s = shift;
1542         my $sort = shift;
1543         my $fref = shift;
1544         my $dxchan;
1545
1546         foreach $dxchan (@_) {
1547                 my $filter = 1;
1548                 next if $dxchan == $me;
1549
1550                 if ($sort eq 'dx') {
1551                     next unless $dxchan->{dx};
1552                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1553                         next unless $filter;
1554                 }
1555                 next if $sort eq 'ann' && !$dxchan->{ann} && $s !~ /^To\s+LOCAL\s+de\s+(?:$main::myalias|$main::mycall)/i;
1556                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1557                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1558                 next if $sort eq 'wx' && !$dxchan->{wx};
1559
1560                 $s =~ s/\a//og unless $dxchan->{beep};
1561
1562                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1563                         $dxchan->send($s);
1564                 } else {
1565                         $dxchan->delay($s);
1566                 }
1567         }
1568 }
1569
1570
1571 #
1572 # obtain the hops from the list for this callsign and pc no
1573 #
1574
1575 sub get_hops
1576 {
1577         my $pcno = shift;
1578         my $hops = $DXProt::hopcount{$pcno};
1579         $hops = $DXProt::def_hopcount if !$hops;
1580         return "H$hops";
1581 }
1582
1583 #
1584 # adjust the hop count on a per node basis using the user loadable
1585 # hop table if available or else decrement an existing one
1586 #
1587
1588 sub adjust_hops
1589 {
1590         my $self = shift;
1591         my $s = shift;
1592         my $call = $self->{call};
1593         my $hops;
1594
1595         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1596                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1597                 confess "$call called adjust_hops with '$s'" unless $pcno;
1598                 my $ref = $nodehops{$call} if %nodehops;
1599                 if ($ref) {
1600                         my $newhops = $ref->{$pcno};
1601                         return "" if defined $newhops && $newhops == 0;
1602                         $newhops = $ref->{default} unless $newhops;
1603                         return "" if defined $newhops && $newhops == 0;
1604                         $newhops = $hops if !$newhops;
1605                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1606                 } else {
1607                         # simply decrement it
1608                         $hops--;
1609                         return "" if !$hops;
1610                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1611                 }
1612         }
1613         return $s;
1614 }
1615
1616 #
1617 # load hop tables
1618 #
1619 sub load_hops
1620 {
1621         my $self = shift;
1622         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1623         do "$main::data/hop_table.pl";
1624         return $@ if $@;
1625         return 0;
1626 }
1627
1628
1629 # add a ping request to the ping queues
1630 sub addping
1631 {
1632         my ($from, $to) = @_;
1633         my $ref = $pings{$to} || [];
1634         my $r = {};
1635         $r->{call} = $from;
1636         $r->{t} = [ gettimeofday ];
1637         route(undef, $to, pc51($to, $main::mycall, 1));
1638         push @$ref, $r;
1639         $pings{$to} = $ref;
1640 }
1641
1642 # add a rcmd request to the rcmd queues
1643 sub addrcmd
1644 {
1645         my ($self, $to, $cmd) = @_;
1646
1647         my $r = {};
1648         $r->{call} = $self->{call};
1649         $r->{t} = $main::systime;
1650         $r->{cmd} = $cmd;
1651         $rcmds{$to} = $r;
1652
1653         my $ref = Route::Node::get($to);
1654         my $dxchan = $ref->dxchan;
1655     if ($dxchan && $dxchan->is_clx) {
1656                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1657         } else {
1658                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1659         }
1660 }
1661
1662 sub disconnect
1663 {
1664         my $self = shift;
1665         my $pc39flag = shift;
1666         my $call = $self->call;
1667
1668         unless ($pc39flag && $pc39flag == 1) {
1669                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1670         }
1671
1672         # do routing stuff
1673         my $node = Route::Node::get($call);
1674         my @rout;
1675         if ($node) {
1676                 @rout = $node->del_nodes;    # at the next level
1677                 @rout = $node->del($main::routeroot);
1678         }
1679
1680         # unbusy and stop and outgoing mail
1681         my $mref = DXMsg::get_busy($call);
1682         $mref->stop_msg($call) if $mref;
1683
1684         # broadcast to all other nodes that all the nodes connected to via me are gone
1685         unless ($pc39flag && $pc39flag == 2) {
1686                 $self->route_pc21(@rout) if @rout;
1687         }
1688
1689         # remove outstanding pings
1690         delete $pings{$call};
1691
1692         # I was the last node visited
1693     $self->user->node($main::mycall);
1694
1695         # send info to all logged in thingies
1696         $self->tell_login('logoutn');
1697
1698         Log('DXProt', $call . " Disconnected");
1699
1700         $self->SUPER::disconnect;
1701 }
1702
1703
1704 #
1705 # send a talk message to this thingy
1706 #
1707 sub talk
1708 {
1709         my ($self, $from, $to, $via, $line) = @_;
1710
1711         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1712         $self->send(DXProt::pc10($from, $to, $via, $line));
1713         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1714 }
1715
1716 # send it if it isn't the except list and isn't isolated and still has a hop count
1717 # taking into account filtering and so on
1718 sub send_route
1719 {
1720         my $self = shift;
1721         my $generate = shift;
1722         my $no = shift;     # the no of things to filter on
1723         my $routeit;
1724         my ($filter, $hops);
1725         my @rin;
1726
1727         if ($self->{routefilter}) {
1728                 for (; @_ && $no; $no--) {
1729                         my $r = shift;
1730                         if ($r) {
1731                                 ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1732                                 push @rin, $r if $filter;
1733                         } else {
1734                                 dbg('chan', "was sent a null value");
1735                         }
1736                 }
1737         }
1738         if (@rin) {
1739                 foreach my $line (&$generate(@rin, @_)) {
1740                         if ($hops) {
1741                                 $routeit = $line;
1742                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1743                         } else {
1744                                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1745                                 next unless $routeit;
1746                         }
1747                         $self->send($routeit);
1748                 }
1749         }
1750 }
1751
1752 sub broadcast_route
1753 {
1754         my $self = shift;
1755         my $generate = shift;
1756         my @dxchan = DXChannel::get_all_nodes();
1757         my $dxchan;
1758         my $line;
1759
1760         foreach $dxchan (@dxchan) {
1761                 next if $dxchan == $self;
1762                 next if $dxchan == $me;
1763                 $dxchan->send_route($generate, @_);
1764         }
1765 }
1766
1767 sub route_pc16
1768 {
1769         my $self = shift;
1770         broadcast_route($self, \&pc16, 1, @_);
1771 }
1772
1773 sub route_pc17
1774 {
1775         my $self = shift;
1776         broadcast_route($self, \&pc17, 1, @_);
1777 }
1778
1779 sub route_pc19
1780 {
1781         my $self = shift;
1782         broadcast_route($self, \&pc19, scalar @_, @_);
1783 }
1784
1785 sub route_pc21
1786 {
1787         my $self = shift;
1788         broadcast_route($self, \&pc21, scalar @_, @_);
1789 }
1790
1791 sub route_pc24
1792 {
1793         my $self = shift;
1794         broadcast_route($self, \&pc24, 1, @_);
1795 }
1796
1797 sub route_pc41
1798 {
1799         my $self = shift;
1800         broadcast_route($self, \&pc41, 1, @_);
1801 }
1802
1803 sub route_pc50
1804 {
1805         my $self = shift;
1806         broadcast_route($self, \&pc50, 1, @_);
1807 }
1808
1809
1810
1811 sub eph_dup
1812 {
1813         my $s = shift;
1814
1815         # chop the end off
1816         $s =~ s/\^H\d\d?\^?~?$//;
1817         return 1 if exists $eph{$s};
1818         $eph{$s} = $main::systime;
1819         return undef;
1820 }
1821
1822 sub eph_clean
1823 {
1824         my ($key, $val);
1825
1826         while (($key, $val) = each %eph) {
1827                 if ($main::systime - $val > 90) {
1828                         delete $eph{$key};
1829                 }
1830         }
1831 }
1832
1833 1;
1834 __END__