perl/DXProt.pm

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