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