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
  33 use strict;
  34 use vars qw($me $pc11_max_age $pc23_max_age
  35                         $last_hour %pings %rcmds
  36                         %nodehops @baddx $baddxfn
  37                         $allowzero $decode_dk0wcy $send_opernam);
  38
  39 $me = undef;                                    # the channel id for this cluster
  40 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  41 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  42
  43 $last_hour = time;                              # last time I did an hourly periodic update
  44 %pings = ();                    # outstanding ping requests outbound
  45 %rcmds = ();                    # outstanding rcmd requests outbound
  46 %nodehops = ();                 # node specific hop control
  47 @baddx = ();                    # list of illegal spotted callsigns
  48
  49
  50 $baddxfn = "$main::data/baddx.pl";
  51
  52 sub init
  53 {
  54         my $user = DXUser->get($main::mycall);
  55         $DXProt::myprot_version += $main::version*100;
  56         $me = DXProt->new($main::mycall, 0, $user);
  57         $me->{here} = 1;
  58         $me->{state} = "indifferent";
  59         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
  60         confess $@ if $@;
  61         #  $me->{sort} = 'M';    # M for me
  62
  63         # now prime the spot and wwv  duplicates file with data
  64     my @today = Julian::unixtoj(time);
  65         for (Spot::readfile(@today), Spot::readfile(Julian::sub(@today, 1))) {
  66                 Spot::dup(@{$_}[0..3]);
  67         }
  68         for (Geomag::readfile(time)) {
  69                 Geomag::dup(@{$_}[1..5]);
  70         }
  71
  72         # load the baddx file
  73         do "$baddxfn" if -e "$baddxfn";
  74         print "$@\n" if $@;
  75 }
  76
  77 #
  78 # obtain a new connection this is derived from dxchannel
  79 #
  80
  81 sub new
  82 {
  83         my $self = DXChannel::alloc(@_);
  84         return $self;
  85 }
  86
  87 # this is how a pc connection starts (for an incoming connection)
  88 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
  89 # all the crap that comes between).
  90 sub start
  91 {
  92         my ($self, $line, $sort) = @_;
  93         my $call = $self->{call};
  94         my $user = $self->{user};
  95
  96         # remember type of connection
  97         $self->{consort} = $line;
  98         $self->{outbound} = $sort eq 'O';
  99         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 100         $self->{lang} = $user->lang || 'en';
 101         $self->{isolate} = $user->{isolate};
 102         $self->{consort} = $line;       # save the connection type
 103         $self->{here} = 1;
 104
 105         # get the INPUT filters (these only pertain to Clusters)
 106         $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
 107         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
 108         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
 109         $self->{inannfilter} = Filter::read_in('ann', $call, 1);
 110
 111         # set unbuffered and no echo
 112         $self->send_now('B',"0");
 113         $self->send_now('E',"0");
 114
 115         # ping neighbour node stuff
 116         my $ping = $user->pingint;
 117         $ping = 5*60 unless defined $ping;
 118         $self->{pingint} = $ping;
 119         $self->{nopings} = $user->nopings || 2;
 120         $self->{pingtime} = [ ];
 121         $self->{pingave} = 0;
 122
 123         # send initialisation string
 124         unless ($self->{outbound}) {
 125                 $self->send(pc38()) if DXNode->get_all();
 126                 $self->send(pc18());
 127                 $self->{lastping} = $main::systime;
 128         } else {
 129                 # remove from outstanding connects queue
 130                 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
 131                 $self->{lastping} = $main::systime + $self->pingint / 2;
 132         }
 133         $self->state('init');
 134         $self->pc50_t(time);
 135
 136         # send info to all logged in thingies
 137         $self->tell_login('loginn');
 138
 139         Log('DXProt', "$call connected");
 140 }
 141
 142 #
 143 # This is the normal pcxx despatcher
 144 #
 145 sub normal
 146 {
 147         my ($self, $line) = @_;
 148         my @field = split /\^/, $line;
 149         pop @field if $field[-1] eq '~';
 150
 151 #       print join(',', @field), "\n";
 152
 153         # ignore any lines that don't start with PC
 154         return if !$field[0] =~ /^PC/;
 155
 156         # process PC frames
 157         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 158         return unless $pcno;
 159         return if $pcno < 10 || $pcno > 99;
 160
 161         # dump bad protocol messages
 162         if ($line =~ /\%[01][0-9A-F]/) {
 163                 dbg('chan', "CORRUPT protocol message - dumped");
 164                 return;
 165         }
 166
 167         # local processing 1
 168         my $pcr;
 169         eval {
 170                 $pcr = Local::pcprot($self, $pcno, @field);
 171         };
 172 #       dbg('local', "Local::pcprot error $@") if $@;
 173         return if $pcr;
 174
 175  SWITCH: {
 176                 if ($pcno == 10) {              # incoming talk
 177
 178                         unless (is_callsign($field[1]) && is_callsign($field[2]) && is_callsign($field[6])) {
 179                                 dbg('chan', "Corrupt talk, rejected");
 180                                 return;
 181                         }
 182                         # is it for me or one of mine?
 183                         my ($to, $via, $call, $dxchan);
 184                         if ($field[5] gt ' ') {
 185                                 $call = $via = $field[2];
 186                                 $to = $field[5];
 187                                 unless (is_callsign($to)) {
 188                                         dbg('chan', "Corrupt talk, rejected");
 189                                         return;
 190                                 }
 191                         } else {
 192                                 $call = $to = $field[2];
 193                         }
 194                         if ($dxchan = DXChannel->get($call)) {
 195                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 196                         } else {
 197                                 $self->route($field[2], $line); # relay it on its way
 198                         }
 199                         return;
 200                 }
 201
 202                 if ($pcno == 11 || $pcno == 26) { # dx spot
 203
 204                         # are any of the callsign fields invalid?
 205             unless ($field[2] !~ m/[^A-Z0-9\-\/]/ && is_callsign($field[6]) && is_callsign($field[7])) {
 206                                 dbg('chan', "Spot contains lower case callsigns or blanks, rejected");
 207                                 return;
 208                         }
 209             if ($field[1] =~ m/[^0-9\.]/) {
 210                                 dbg('chan', "Spot frequency not numeric, rejected");
 211                                 return;
 212                         }
 213
 214                         # route 'foreign' pc26s
 215                         if ($pcno == 26) {
 216                                 if ($field[7] ne $main::mycall) {
 217                                         $self->route($field[7], $line);
 218                                         return;
 219                                 }
 220                         }
 221
 222                         # if this is a 'nodx' node then ignore it
 223                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 224                                 dbg('chan', "Bad DXNode, dropped");
 225                                 return;
 226                         }
 227
 228                         # convert the date to a unix date
 229                         my $d = cltounix($field[3], $field[4]);
 230                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 231                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 232                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 233                                 return;
 234                         }
 235
 236                         # is it 'baddx'
 237                         if (grep $field[2] eq $_, @baddx) {
 238                                 dbg('chan', "Bad DX spot, ignored");
 239                                 return;
 240                         }
 241
 242                         # do some de-duping
 243                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 244                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 245                                 dbg('chan', "Duplicate Spot ignored\n");
 246                                 return;
 247                         }
 248
 249                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 250
 251             #
 252                         # @spot at this point contains:-
 253             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 254                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 255                         # you should be able to route on any of these
 256             #
 257
 258                         # fix up qra locators of known users
 259                         my $user = DXUser->get_current($spot[4]);
 260                         if ($user) {
 261                                 my $qra = $user->qra;
 262                                 unless ($qra && DXBearing::is_qra($qra)) {
 263                                         my $lat = $user->lat;
 264                                         my $long = $user->long;
 265                                         if (defined $lat && defined $long) {
 266                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 267                                                 $user->put;
 268                                         }
 269                                 }
 270
 271                                 # send a remote command to a distant cluster if it is visible and there is no
 272                                 # qra locator and we havn't done it for a month.
 273
 274                                 unless ($user->qra) {
 275                                         my $node;
 276                                         my $to = $user->homenode;
 277                                         my $last = $user->lastoper || 0;
 278                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 279                                                 my $cmd = "forward/opernam $spot[4]";
 280                                                 # send the rcmd but we aren't interested in the replies...
 281                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 282                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 283                                                 } else {
 284                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 285                                                 }
 286                                                 if ($to ne $field[7]) {
 287                                                         $to = $field[7];
 288                                                         $node = DXCluster->get_exact($to);
 289                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 290                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 291                                                         } else {
 292                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 293                                                         }
 294                                                 }
 295                                                 $user->lastoper($main::systime);
 296                                                 $user->put;
 297                                         }
 298                                 }
 299                         }
 300
 301                         # local processing
 302                         my $r;
 303                         eval {
 304                                 $r = Local::spot($self, @spot);
 305                         };
 306 #                       dbg('local', "Local::spot1 error $@") if $@;
 307                         return if $r;
 308
 309                         # DON'T be silly and send on PC26s!
 310                         return if $pcno == 26;
 311
 312                         # send out the filtered spots
 313                         send_dx_spot($self, $line, @spot) if @spot;
 314                         return;
 315                 }
 316
 317                 if ($pcno == 12) {              # announces
 318                         unless (is_callsign($field[1]) && is_callsign($field[2]) && is_callsign($field[5])) {
 319                                 dbg('chan', "Corrupt announce, rejected");
 320                                 return;
 321                         }
 322
 323                         # announce duplicate checking
 324                         $field[3] =~ s/^\s+//;  # remove leading blanks
 325                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 326                                 dbg('chan', "Duplicate Announce ignored\n");
 327                                 return;
 328                         }
 329
 330                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 331
 332                                 # global ann filtering on INPUT
 333                                 if ($self->{inannfilter}) {
 334                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 335                                         unless ($filter) {
 336                                                 dbg('chan', "Rejected by filter");
 337                                                 return;
 338                                         }
 339                                 }
 340
 341                                 # send it
 342                                 $self->send_announce($line, @field[1..6]);
 343                         } else {
 344                                 $self->route($field[2], $line);
 345                         }
 346
 347                         return;
 348                 }
 349
 350                 if ($pcno == 13) {
 351                         last SWITCH;
 352                 }
 353                 if ($pcno == 14) {
 354                         last SWITCH;
 355                 }
 356                 if ($pcno == 15) {
 357                         last SWITCH;
 358                 }
 359
 360                 if ($pcno == 16) {              # add a user
 361                         my $node = DXCluster->get_exact($field[1]);
 362                         my $dxchan;
 363                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 364                                 # add it to the node table if it isn't present and it's
 365                                 # connected locally
 366                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 367                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 368
 369                         }
 370                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 371                         return unless $node->isa('DXNode');
 372                         if ($node->dxchan != $self) {
 373                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 374                                 return;
 375                         }
 376                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 377                                 dbg('chan', "LOOP: $field[1] connected locally");
 378                                 return;
 379                         }
 380                         my $i;
 381
 382                         for ($i = 2; $i < $#field; $i++) {
 383                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 384                                 next if !$call || length $call < 3 || length $call > 8;
 385                                 next if !$confmode;
 386                                 $call = uc $call;
 387                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 388
 389                                 $confmode = $confmode eq '*';
 390                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 391
 392                                 # add this station to the user database, if required
 393                                 $call =~ s/-\d+$//o;        # remove ssid for users
 394                                 my $user = DXUser->get_current($call);
 395                                 $user = DXUser->new($call) if !$user;
 396                                 $user->homenode($node->call) if !$user->homenode;
 397                                 $user->node($node->call);
 398                                 $user->lastin($main::systime) unless DXChannel->get($call);
 399                                 $user->put;
 400                         }
 401
 402                         # queue up any messages (look for privates only)
 403                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 404                         last SWITCH;
 405                 }
 406
 407                 if ($pcno == 17) {              # remove a user
 408                         my $node = DXCluster->get_exact($field[2]);
 409                         my $dxchan;
 410                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 411                                 # add it to the node table if it isn't present and it's
 412                                 # connected locally
 413                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 414                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 415                                 return;
 416                         }
 417                         return unless $node;
 418                         return unless $node->isa('DXNode');
 419                         if ($node->dxchan != $self) {
 420                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 421                                 return;
 422                         }
 423                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 424                                 dbg('chan', "LOOP: $field[2] connected locally");
 425                                 return;
 426                         }
 427                         my $ref = DXCluster->get_exact($field[1]);
 428                         $ref->del() if $ref;
 429                         last SWITCH;
 430                 }
 431
 432                 if ($pcno == 18) {              # link request
 433                         $self->state('init');
 434
 435                         # first clear out any nodes on this dxchannel
 436                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 437                         foreach my $node (@gonenodes) {
 438                                 next if $node->dxchan == $DXProt::me;
 439                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 440                                 $node->del();
 441                         }
 442                         $self->send_local_config();
 443                         $self->send(pc20());
 444                         return;             # we don't pass these on
 445                 }
 446
 447                 if ($pcno == 19) {              # incoming cluster list
 448                         my $i;
 449                         my $newline = "PC19^";
 450                         for ($i = 1; $i < $#field-1; $i += 4) {
 451                                 my $here = $field[$i];
 452                                 my $call = uc $field[$i+1];
 453                                 my $confmode = $field[$i+2];
 454                                 my $ver = $field[$i+3];
 455
 456                                 $ver = 5400 if !$ver && $allowzero;
 457
 458                                 # now check the call over
 459                                 my $node = DXCluster->get_exact($call);
 460                                 if ($node) {
 461                                         my $dxchan;
 462                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 463                                                 dbg('chan', "LOOP: $call connected locally");
 464                                         }
 465                                     if ($node->dxchan != $self) {
 466                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 467                                                 next;
 468                                         }
 469                                         dbg('chan', "already have $call");
 470                                         next;
 471                                 }
 472
 473                                 # check for sane parameters
 474                                 next if $ver < 5000; # only works with version 5 software
 475                                 next if length $call < 3; # min 3 letter callsigns
 476
 477                                 # add it to the nodes table and outgoing line
 478                                 $newline .= "$here^$call^$confmode^$ver^";
 479                                 DXNode->new($self, $call, $confmode, $here, $ver);
 480
 481                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 482                                 my $mref = DXMsg::get_busy($call);
 483                                 $mref->stop_msg($call) if $mref;
 484
 485                                 # add this station to the user database, if required (don't remove SSID from nodes)
 486                                 my $user = DXUser->get_current($call);
 487                                 if (!$user) {
 488                                         $user = DXUser->new($call);
 489                                         $user->sort('A');
 490                                         $user->priv(1);                   # I have relented and defaulted nodes
 491                                         $self->{priv} = 1;                # to user RCMDs allowed
 492                                         $user->homenode($call);
 493                                         $user->node($call);
 494                                 }
 495                                 $user->lastin($main::systime) unless DXChannel->get($call);
 496                                 $user->put;
 497                         }
 498
 499                         return if $newline eq "PC19^";
 500
 501                         # add hop count
 502                         $newline .=  get_hops(19) . "^";
 503                         $line = $newline;
 504                         last SWITCH;
 505                 }
 506
 507                 if ($pcno == 20) {              # send local configuration
 508                         $self->send_local_config();
 509                         $self->send(pc22());
 510                         $self->state('normal');
 511                         return;
 512                 }
 513
 514                 if ($pcno == 21) {              # delete a cluster from the list
 515                         my $call = uc $field[1];
 516                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 517                                 my $node = DXCluster->get_exact($call);
 518                                 if ($node) {
 519                                         if ($node->dxchan != $self) {
 520                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 521                                                 return;
 522                                         }
 523                                         my $dxchan;
 524                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 525                                                 dbg('chan', "LOOP: $call connected locally");
 526                                                 return;
 527                                         }
 528                                         $node->del();
 529                                 } else {
 530                                         dbg('chan', "$call not in table, dropped");
 531                                         return;
 532                                 }
 533                         }
 534                         last SWITCH;
 535                 }
 536
 537                 if ($pcno == 22) {
 538                         $self->state('normal');
 539                         return;
 540                 }
 541
 542                 if ($pcno == 23 || $pcno == 27) { # WWV info
 543
 544                         # route 'foreign' pc27s
 545                         if ($pcno == 27) {
 546                                 if ($field[8] ne $main::mycall) {
 547                                         $self->route($field[8], $line);
 548                                         return;
 549                                 }
 550                         }
 551
 552                         # do some de-duping
 553                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 554                         my $sfi = unpad($field[3]);
 555                         my $k = unpad($field[4]);
 556                         my $i = unpad($field[5]);
 557                         my ($r) = $field[6] =~ /R=(\d+)/;
 558                         $r = 0 unless $r;
 559                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 560                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 561                                 return;
 562                         }
 563                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 564                                 dbg('chan', "Dup WWV Spot ignored\n");
 565                                 return;
 566                         }
 567                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 568
 569                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 570
 571                         my $rep;
 572                         eval {
 573                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 574                         };
 575 #                       dbg('local', "Local::wwv2 error $@") if $@;
 576                         return if $rep;
 577
 578                         # DON'T be silly and send on PC27s!
 579                         return if $pcno == 27;
 580
 581                         # broadcast to the eager world
 582                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 583                         return;
 584                 }
 585
 586                 if ($pcno == 24) {              # set here status
 587                         my $call = uc $field[1];
 588                         my $ref = DXCluster->get_exact($call);
 589                         $ref->here($field[2]) if $ref;
 590                         last SWITCH;
 591                 }
 592
 593                 if ($pcno == 25) {      # merge request
 594                         if ($field[1] ne $main::mycall) {
 595                                 $self->route($field[1], $line);
 596                                 return;
 597                         }
 598                         if ($field[2] eq $main::mycall) {
 599                                 dbg('chan', "Trying to merge to myself, ignored");
 600                                 return;
 601                         }
 602
 603                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 604
 605                         # spots
 606                         if ($field[3] > 0) {
 607                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 608                                 my $in;
 609                                 foreach $in (@in) {
 610                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 611                                 }
 612                         }
 613
 614                         # wwv
 615                         if ($field[4] > 0) {
 616                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 617                                 my $in;
 618                                 foreach $in (@in) {
 619                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 620                                 }
 621                         }
 622                         return;
 623                 }
 624
 625                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 626                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 627                                 DXMsg::process($self, $line);
 628                         } else {
 629                                 $self->route($field[1], $line);
 630                         }
 631                         return;
 632                 }
 633
 634                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 635                         if ($field[1] eq $main::mycall) {
 636                                 my $ref = DXUser->get_current($field[2]);
 637                                 my $cref = DXCluster->get($field[2]);
 638                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 639                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 640                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 641                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 642                                                 my $oldpriv = $self->{priv};
 643                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 644                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 645                                                 $self->{priv} = $oldpriv;
 646                                                 for (@in) {
 647                                                         s/\s*$//og;
 648                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 649                                                         Log('rcmd', 'out', $field[2], $_);
 650                                                 }
 651                                                 delete $self->{remotecmd};
 652                                         } else {
 653                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 654                                         }
 655                                 } else {
 656                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 657                                 }
 658                         } else {
 659                                 my $ref = DXUser->get_current($field[1]);
 660                                 if ($ref && $ref->is_clx) {
 661                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 662                                 } else {
 663                                         $self->route($field[1], $line);
 664                                 }
 665                         }
 666                         return;
 667                 }
 668
 669                 if ($pcno == 35) {              # remote command replies
 670                         if ($field[1] eq $main::mycall) {
 671                                 my $s = $rcmds{$field[2]};
 672                                 if ($s) {
 673                                         my $dxchan = DXChannel->get($s->{call});
 674                                         $dxchan->send($field[3]) if $dxchan;
 675                                         delete $rcmds{$field[2]} if !$dxchan;
 676                                 } else {
 677                                         # send unsolicited ones to the sysop
 678                                         my $dxchan = DXChannel->get($main::myalias);
 679                                         $dxchan->send($field[3]) if $dxchan;
 680                                 }
 681                         } else {
 682                                 my $ref = DXUser->get_current($field[1]);
 683                                 if ($ref && $ref->is_clx) {
 684                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 685                                 } else {
 686                                         $self->route($field[1], $line);
 687                                 }
 688                         }
 689                         return;
 690                 }
 691
 692                 # for pc 37 see 44 onwards
 693
 694                 if ($pcno == 38) {              # node connected list from neighbour
 695                         return;
 696                 }
 697
 698                 if ($pcno == 39) {              # incoming disconnect
 699                         $self->disconnect(1);
 700                         return;
 701                 }
 702
 703                 if ($pcno == 41) {              # user info
 704                         # add this station to the user database, if required
 705                         my $user = DXUser->get_current($field[1]);
 706                         if (!$user) {
 707                                 # then try without an SSID
 708                                 $field[1] =~ s/-\d+$//o;
 709                                 $user = DXUser->get_current($field[1]);
 710                         }
 711                         $user = DXUser->new($field[1]) if !$user;
 712
 713                         if ($field[2] == 1) {
 714                                 $user->name($field[3]);
 715                         } elsif ($field[2] == 2) {
 716                                 $user->qth($field[3]);
 717                         } elsif ($field[2] == 3) {
 718                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 719                                 $user->lat($lat);
 720                                 $user->long($long);
 721                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 722                         } elsif ($field[2] == 4) {
 723                                 $user->homenode($field[3]);
 724                         }
 725                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 726                         $user->put;
 727                         last SWITCH;
 728                 }
 729                 if ($pcno == 43) {
 730                         last SWITCH;
 731                 }
 732                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 733                         DXDb::process($self, $line);
 734                         return;
 735                 }
 736
 737                 if ($pcno == 50) {              # keep alive/user list
 738                         my $node = DXCluster->get_exact($field[1]);
 739                         if ($node) {
 740                                 return unless $node->isa('DXNode');
 741                                 return unless $node->dxchan == $self;
 742                                 $node->update_users($field[2]);
 743                         }
 744                         last SWITCH;
 745                 }
 746
 747                 if ($pcno == 51) {              # incoming ping requests/answers
 748
 749                         # is it for us?
 750                         if ($field[1] eq $main::mycall) {
 751                                 my $flag = $field[3];
 752                                 if ($flag == 1) {
 753                                         $self->send(pc51($field[2], $field[1], '0'));
 754                                 } else {
 755                                         # it's a reply, look in the ping list for this one
 756                                         my $ref = $pings{$field[2]};
 757                                         if ($ref) {
 758                                                 my $tochan =  DXChannel->get($field[2]);
 759                                                 while (@$ref) {
 760                                                         my $r = shift @$ref;
 761                                                         my $dxchan = DXChannel->get($r->{call});
 762                                                         next unless $dxchan;
 763                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 764                                                         if ($dxchan->is_user) {
 765                                                                 my $s = sprintf "%.2f", $t;
 766                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 767                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 768                                                         } elsif ($dxchan->is_node) {
 769                                                                 if ($tochan) {
 770                                                                         $tochan->{nopings} = 2; # pump up the timer
 771                                                                         push @{$tochan->{pingtime}}, $t;
 772                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 773                                                                         my $st;
 774                                                                         for (@{$tochan->{pingtime}}) {
 775                                                                                 $st += $_;
 776                                                                         }
 777                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 778                                                                 }
 779                                                         }
 780                                                 }
 781                                         }
 782                                 }
 783                         } else {
 784                                 # route down an appropriate thingy
 785                                 $self->route($field[1], $line);
 786                         }
 787                         return;
 788                 }
 789
 790                 if ($pcno == 73) {  # WCY broadcasts
 791
 792                         # do some de-duping
 793                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 794                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 795                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 796                                 return;
 797                         }
 798                         @field = map { unpad($_) } @field;
 799                         if (WCY::dup($d,@field[3..7])) {
 800                                 dbg('chan', "Dup WCY Spot ignored\n");
 801                                 return;
 802                         }
 803
 804                         my $wcy = WCY::update($d, @field[2..12]);
 805
 806                         my $rep;
 807                         eval {
 808                                 $rep = Local::wwv($self, @field[1..12]);
 809                         };
 810                         # dbg('local', "Local::wcy error $@") if $@;
 811                         return if $rep;
 812
 813                         # broadcast to the eager world
 814                         send_wcy_spot($self, $line, $d, @field[2..12]);
 815                         return;
 816                 }
 817
 818                 if ($pcno == 84) { # remote commands (incoming)
 819                         if ($field[1] eq $main::mycall) {
 820                                 my $ref = DXUser->get_current($field[2]);
 821                                 my $cref = DXCluster->get($field[2]);
 822                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 823                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 824                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 825                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 826                                                 my $oldpriv = $self->{priv};
 827                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 828                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 829                                                 $self->{priv} = $oldpriv;
 830                                                 for (@in) {
 831                                                         s/\s*$//og;
 832                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 833                                                         Log('rcmd', 'out', $field[2], $_);
 834                                                 }
 835                                                 delete $self->{remotecmd};
 836                                         } else {
 837                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 838                                         }
 839                                 } else {
 840                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 841                                 }
 842                         } else {
 843                                 my $ref = DXUser->get_current($field[1]);
 844                                 if ($ref && $ref->is_clx) {
 845                                         $self->route($field[1], $line);
 846                                 } else {
 847                                         route($field[1], pc34($field[2], $field[1], $field[4]));
 848                                 }
 849                         }
 850                         return;
 851                 }
 852
 853                 if ($pcno == 85) {              # remote command replies
 854                         if ($field[1] eq $main::mycall) {
 855                                 my $dxchan = DXChannel->get($field[3]);
 856                                 if ($dxchan) {
 857                                         $dxchan->send($field[4]);
 858                                 } else {
 859                                         my $s = $rcmds{$field[2]};
 860                                         if ($s) {
 861                                                 $dxchan = DXChannel->get($s->{call});
 862                                                 $dxchan->send($field[4]) if $dxchan;
 863                                                 delete $rcmds{$field[2]} if !$dxchan;
 864                                         } else {
 865                                                 # send unsolicited ones to the sysop
 866                                                 my $dxchan = DXChannel->get($main::myalias);
 867                                                 $dxchan->send($field[4]) if $dxchan;
 868                                         }
 869                                 }
 870                         } else {
 871                                 my $ref = DXUser->get_current($field[1]);
 872                                 if ($ref && $ref->is_clx) {
 873                                         $self->route($field[1], $line);
 874                                 } else {
 875                                         route($field[1], pc35($field[2], $field[1], $field[4]));
 876                                 }
 877                         }
 878                         return;
 879                 }
 880         }
 881
 882         # if get here then rebroadcast the thing with its Hop count decremented (if
 883         # there is one). If it has a hop count and it decrements to zero then don't
 884         # rebroadcast it.
 885         #
 886         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 887         #        REBROADCAST!!!!
 888         #
 889
 890         unless ($self->{isolate}) {
 891                 broadcast_ak1a($line, $self); # send it to everyone but me
 892         }
 893 }
 894
 895 #
 896 # This is called from inside the main cluster processing loop and is used
 897 # for despatching commands that are doing some long processing job
 898 #
 899 sub process
 900 {
 901         my $t = time;
 902         my @dxchan = DXChannel->get_all();
 903         my $dxchan;
 904
 905         foreach $dxchan (@dxchan) {
 906                 next unless $dxchan->is_node();
 907                 next if $dxchan == $me;
 908
 909                 # send a pc50 out on this channel
 910                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
 911                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
 912                         $dxchan->pc50_t($t);
 913                 }
 914
 915                 # send a ping out on this channel
 916                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
 917                         if ($dxchan->{nopings} <= 0) {
 918                                 $dxchan->disconnect;
 919                         } else {
 920                                 addping($main::mycall, $dxchan->call);
 921                                 $dxchan->{nopings} -= 1;
 922                                 $dxchan->{lastping} = $t;
 923                         }
 924                 }
 925         }
 926
 927         my $key;
 928         my $val;
 929         my $cutoff;
 930         if ($main::systime - 3600 > $last_hour) {
 931                 Spot::process;
 932                 Geomag::process;
 933                 AnnTalk::process;
 934                 $last_hour = $main::systime;
 935         }
 936 }
 937
 938 #
 939 # finish up a pc context
 940 #
 941 sub finish
 942 {
 943         my $self = shift;
 944         my $call = $self->call;
 945         my $conn = shift;
 946         my $ref = DXCluster->get_exact($call);
 947
 948         # unbusy and stop and outgoing mail
 949         my $mref = DXMsg::get_busy($call);
 950         $mref->stop_msg($call) if $mref;
 951
 952         # broadcast to all other nodes that all the nodes connected to via me are gone
 953         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 954         my $node;
 955
 956         foreach $node (@gonenodes) {
 957                 next if $node->call eq $call;
 958                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 959                 $node->del();
 960         }
 961
 962         # remove outstanding pings
 963         delete $pings{$call};
 964
 965         # now broadcast to all other ak1a nodes that I have gone
 966         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 967
 968         # I was the last node visited
 969     $self->user->node($main::mycall);
 970
 971         # send info to all logged in thingies
 972         $self->tell_login('logoutn');
 973
 974         Log('DXProt', $call . " Disconnected");
 975         $ref->del() if $ref;
 976 }
 977
 978 #
 979 # some active measures
 980 #
 981 sub send_dx_spot
 982 {
 983         my $self = shift;
 984         my $line = shift;
 985         my @dxchan = DXChannel->get_all();
 986         my $dxchan;
 987
 988         # send it if it isn't the except list and isn't isolated and still has a hop count
 989         # taking into account filtering and so on
 990         foreach $dxchan (@dxchan) {
 991                 my $routeit;
 992                 my ($filter, $hops);
 993
 994                 if ($dxchan->{spotfilter}) {
 995                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 996                         next unless $filter;
 997                 }
 998
 999                 if ($dxchan->is_node) {
1000                         next if $dxchan == $self;
1001                         if ($hops) {
1002                                 $routeit = $line;
1003                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1004                         } else {
1005                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1006                                 next unless $routeit;
1007                         }
1008                         if ($filter) {
1009                                 $dxchan->send($routeit) if $routeit;
1010                         } else {
1011                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1012                         }
1013                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1014                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1015                         $buf .= "\a\a" if $dxchan->{beep};
1016                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1017                                 $dxchan->send($buf);
1018                         } else {
1019                                 $dxchan->delay($buf);
1020                         }
1021                 }
1022         }
1023 }
1024
1025 sub send_wwv_spot
1026 {
1027         my $self = shift;
1028         my $line = shift;
1029         my @dxchan = DXChannel->get_all();
1030         my $dxchan;
1031
1032         # send it if it isn't the except list and isn't isolated and still has a hop count
1033         # taking into account filtering and so on
1034         foreach $dxchan (@dxchan) {
1035                 my $routeit;
1036                 my ($filter, $hops);
1037
1038                 if ($dxchan->{wwvfilter}) {
1039                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
1040                          next unless $filter;
1041                 }
1042                 if ($dxchan->is_node) {
1043                         next if $dxchan == $self;
1044                         if ($hops) {
1045                                 $routeit = $line;
1046                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1047                         } else {
1048                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1049                                 next unless $routeit;
1050                         }
1051                         if ($filter) {
1052                                 $dxchan->send($routeit) if $routeit;
1053                         } else {
1054                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1055
1056                         }
1057                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1058                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1059                         $buf .= "\a\a" if $dxchan->{beep};
1060                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1061                                 $dxchan->send($buf);
1062                         } else {
1063                                 $dxchan->delay($buf);
1064                         }
1065                 }
1066         }
1067 }
1068
1069 sub send_wcy_spot
1070 {
1071         my $self = shift;
1072         my $line = shift;
1073         my @dxchan = DXChannel->get_all();
1074         my $dxchan;
1075
1076         # send it if it isn't the except list and isn't isolated and still has a hop count
1077         # taking into account filtering and so on
1078         foreach $dxchan (@dxchan) {
1079                 my $routeit;
1080                 my ($filter, $hops);
1081
1082                 if ($dxchan->{wcyfilter}) {
1083                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1084                          next unless $filter;
1085                 }
1086                 if ($dxchan->is_clx || $dxchan->is_spider) {
1087                         next if $dxchan == $self;
1088                         if ($hops) {
1089                                 $routeit = $line;
1090                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1091                         } else {
1092                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1093                                 next unless $routeit;
1094                         }
1095                         if ($filter) {
1096                                 $dxchan->send($routeit) if $routeit;
1097                         } else {
1098                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1099                         }
1100                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1101                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1102                         $buf .= "\a\a" if $dxchan->{beep};
1103                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1104                                 $dxchan->send($buf);
1105                         } else {
1106                                 $dxchan->delay($buf);
1107                         }
1108                 }
1109         }
1110 }
1111
1112 # send an announce
1113 sub send_announce
1114 {
1115         my $self = shift;
1116         my $line = shift;
1117         my @dxchan = DXChannel->get_all();
1118         my $dxchan;
1119         my $text = unpad($_[2]);
1120         my $target;
1121         my $to = 'To ';
1122
1123         if ($_[3] eq '*') {     # sysops
1124                 $target = "SYSOP";
1125         } elsif ($_[3] gt ' ') { # speciality list handling
1126                 my ($name) = split /\./, $_[3];
1127                 $target = "$name"; # put the rest in later (if bothered)
1128         }
1129
1130         if ($_[5] eq '1') {
1131                 $target = "WX";
1132                 $to = '';
1133         }
1134         $target = "All" if !$target;
1135
1136         Log('ann', $target, $_[0], $text);
1137
1138         # send it if it isn't the except list and isn't isolated and still has a hop count
1139         # taking into account filtering and so on
1140         foreach $dxchan (@dxchan) {
1141                 my $routeit;
1142                 my ($filter, $hops);
1143
1144                 if ($dxchan->{annfilter}) {
1145                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1146                         next unless $filter;
1147                 }
1148                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1149                         next if $dxchan == $self;
1150                         if ($hops) {
1151                                 $routeit = $line;
1152                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1153                         } else {
1154                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1155                                 next unless $routeit;
1156                         }
1157                         if ($filter) {
1158                                 $dxchan->send($routeit) if $routeit;
1159                         } else {
1160                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1161
1162                         }
1163                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1164                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1165                         my $buf = "$to$target de $_[0]: $text";
1166                         $buf .= "\a\a" if $dxchan->{beep};
1167                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1168                                 $dxchan->send($buf);
1169                         } else {
1170                                 $dxchan->delay($buf);
1171                         }
1172                 }
1173         }
1174 }
1175
1176 sub send_local_config
1177 {
1178         my $self = shift;
1179         my $n;
1180         my @nodes;
1181         my @localnodes;
1182         my @remotenodes;
1183
1184         # send our nodes
1185         if ($self->{isolate}) {
1186                 @localnodes = (DXCluster->get_exact($main::mycall));
1187         } else {
1188                 # create a list of all the nodes that are not connected to this connection
1189                 # and are not themselves isolated, this to make sure that isolated nodes
1190         # don't appear outside of this node
1191                 @nodes = DXNode::get_all();
1192                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1193                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1194                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1195                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1196                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1197                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1198         }
1199
1200         my @s = $me->pc19(@localnodes, @remotenodes);
1201         for (@s) {
1202                 my $routeit = adjust_hops($self, $_);
1203                 $self->send($routeit) if $routeit;
1204         }
1205
1206         # get all the users connected on the above nodes and send them out
1207         foreach $n (@localnodes, @remotenodes) {
1208                 my @users = values %{$n->list};
1209                 my @s = pc16($n, @users);
1210                 for (@s) {
1211                         my $routeit = adjust_hops($self, $_);
1212                         $self->send($routeit) if $routeit;
1213                 }
1214         }
1215 }
1216
1217 #
1218 # route a message down an appropriate interface for a callsign
1219 #
1220 # is called route(to, pcline);
1221 #
1222 sub route
1223 {
1224         my ($self, $call, $line) = @_;
1225         my $cl = DXCluster->get_exact($call);
1226         if ($cl) {       # don't route it back down itself
1227                 if (ref $self && $call eq $self->{call}) {
1228                         dbg('chan', "Trying to route back to source, dropped");
1229                         return;
1230                 }
1231                 my $hops;
1232                 my $dxchan = $cl->{dxchan};
1233                 if ($dxchan) {
1234                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1235                         if ($routeit) {
1236                                 $dxchan->send($routeit) if $dxchan;
1237                         }
1238                 }
1239         }
1240 }
1241
1242 # broadcast a message to all clusters taking into account isolation
1243 # [except those mentioned after buffer]
1244 sub broadcast_ak1a
1245 {
1246         my $s = shift;                          # the line to be rebroadcast
1247         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1248         my @dxchan = DXChannel::get_all_ak1a();
1249         my $dxchan;
1250
1251         # send it if it isn't the except list and isn't isolated and still has a hop count
1252         foreach $dxchan (@dxchan) {
1253                 next if grep $dxchan == $_, @except;
1254                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1255                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1256         }
1257 }
1258
1259 # broadcast a message to all clusters ignoring isolation
1260 # [except those mentioned after buffer]
1261 sub broadcast_all_ak1a
1262 {
1263         my $s = shift;                          # the line to be rebroadcast
1264         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1265         my @dxchan = DXChannel::get_all_ak1a();
1266         my $dxchan;
1267
1268         # send it if it isn't the except list and isn't isolated and still has a hop count
1269         foreach $dxchan (@dxchan) {
1270                 next if grep $dxchan == $_, @except;
1271                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1272                 $dxchan->send($routeit);
1273         }
1274 }
1275
1276 # broadcast to all users
1277 # storing the spot or whatever until it is in a state to receive it
1278 sub broadcast_users
1279 {
1280         my $s = shift;                          # the line to be rebroadcast
1281         my $sort = shift;           # the type of transmission
1282         my $fref = shift;           # a reference to an object to filter on
1283         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1284         my @dxchan = DXChannel::get_all_users();
1285         my $dxchan;
1286         my @out;
1287
1288         foreach $dxchan (@dxchan) {
1289                 next if grep $dxchan == $_, @except;
1290                 push @out, $dxchan;
1291         }
1292         broadcast_list($s, $sort, $fref, @out);
1293 }
1294
1295 # broadcast to a list of users
1296 sub broadcast_list
1297 {
1298         my $s = shift;
1299         my $sort = shift;
1300         my $fref = shift;
1301         my $dxchan;
1302
1303         foreach $dxchan (@_) {
1304                 my $filter = 1;
1305
1306                 if ($sort eq 'dx') {
1307                     next unless $dxchan->{dx};
1308                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1309                         next unless $filter;
1310                 }
1311                 next if $sort eq 'ann' && !$dxchan->{ann};
1312                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1313                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1314                 next if $sort eq 'wx' && !$dxchan->{wx};
1315
1316                 $s =~ s/\a//og unless $dxchan->{beep};
1317
1318                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1319                         $dxchan->send($s);
1320                 } else {
1321                         $dxchan->delay($s);
1322                 }
1323         }
1324 }
1325
1326
1327 #
1328 # obtain the hops from the list for this callsign and pc no
1329 #
1330
1331 sub get_hops
1332 {
1333         my $pcno = shift;
1334         my $hops = $DXProt::hopcount{$pcno};
1335         $hops = $DXProt::def_hopcount if !$hops;
1336         return "H$hops";
1337 }
1338
1339 #
1340 # adjust the hop count on a per node basis using the user loadable
1341 # hop table if available or else decrement an existing one
1342 #
1343
1344 sub adjust_hops
1345 {
1346         my $self = shift;
1347         my $s = shift;
1348         my $call = $self->{call};
1349         my $hops;
1350
1351         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1352                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1353                 confess "$call called adjust_hops with '$s'" unless $pcno;
1354                 my $ref = $nodehops{$call} if %nodehops;
1355                 if ($ref) {
1356                         my $newhops = $ref->{$pcno};
1357                         return "" if defined $newhops && $newhops == 0;
1358                         $newhops = $ref->{default} unless $newhops;
1359                         return "" if defined $newhops && $newhops == 0;
1360                         $newhops = $hops if !$newhops;
1361                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1362                 } else {
1363                         # simply decrement it
1364                         $hops--;
1365                         return "" if !$hops;
1366                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1367                 }
1368         }
1369         return $s;
1370 }
1371
1372 #
1373 # load hop tables
1374 #
1375 sub load_hops
1376 {
1377         my $self = shift;
1378         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1379         do "$main::data/hop_table.pl";
1380         return $@ if $@;
1381         return 0;
1382 }
1383
1384
1385 # add a ping request to the ping queues
1386 sub addping
1387 {
1388         my ($from, $to) = @_;
1389         my $ref = $pings{$to} || [];
1390         my $r = {};
1391         $r->{call} = $from;
1392         $r->{t} = [ gettimeofday ];
1393         route(undef, $to, pc51($to, $main::mycall, 1));
1394         push @$ref, $r;
1395         $pings{$to} = $ref;
1396 }
1397
1398 # add a rcmd request to the rcmd queues
1399 sub addrcmd
1400 {
1401         my ($self, $to, $cmd) = @_;
1402
1403         my $r = {};
1404         $r->{call} = $self->{call};
1405         $r->{t} = $main::systime;
1406         $r->{cmd} = $cmd;
1407         $rcmds{$to} = $r;
1408
1409         my $ref = DXCluster->get_exact($to);
1410     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1411                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1412         } else {
1413                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1414         }
1415 }
1416
1417 sub disconnect
1418 {
1419         my $self = shift;
1420         my $nopc39 = shift;
1421
1422         if ($self->{conn} && !$nopc39) {
1423                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1424         }
1425
1426         $self->SUPER::disconnect;
1427 }
1428
1429 # check that a field only has callsign characters in it
1430 sub is_callsign
1431 {
1432         return $_[0] !~ /[^A-Z0-9\-]/
1433 }
1434
1435 #
1436 # send a talk message to this thingy
1437 #
1438 sub talk
1439 {
1440         my ($self, $from, $to, $via, $line) = @_;
1441
1442         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1443         $self->send(DXProt::pc10($from, $to, $via, $line));
1444         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1445 }
1446 1;
1447 __END__