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;
 100         $self->{lang} = $user->lang;
 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 || $pcno > 99;
 160
 161         # dump bad protocol messages unless it is a PC29
 162         if ($line =~ /\%[0-9A-F][0-9A-F]/o && $pcno != 29) {
 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                         # is it for me or one of mine?
 179                         my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
 180                         if ($call eq $main::mycall || grep $_ eq $call, DXChannel::get_all_user_calls()) {
 181
 182                                 # yes, it is
 183                                 my $text = unpad($field[3]);
 184                                 Log('talk', $call, $field[1], $field[6], $text);
 185                                 $call = $main::myalias if $call eq $main::mycall;
 186                                 my $ref = DXChannel->get($call);
 187                                 $ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
 188                         } else {
 189                                 $self->route($field[2], $line); # relay it on its way
 190                         }
 191                         return;
 192                 }
 193
 194                 if ($pcno == 11 || $pcno == 26) { # dx spot
 195
 196                         # route 'foreign' pc26s
 197                         if ($pcno == 26) {
 198                                 if ($field[7] ne $main::mycall) {
 199                                         $self->route($field[7], $line);
 200                                         return;
 201                                 }
 202                         }
 203
 204                         # if this is a 'nodx' node then ignore it
 205                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 206                                 dbg('chan', "Bad DXNode, dropped");
 207                                 return;
 208                         }
 209
 210                         # convert the date to a unix date
 211                         my $d = cltounix($field[3], $field[4]);
 212                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 213                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 214                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 215                                 return;
 216                         }
 217
 218                         # is it 'baddx'
 219                         if (grep $field[2] eq $_, @baddx) {
 220                                 dbg('chan', "Bad DX spot, ignored");
 221                                 return;
 222                         }
 223
 224                         # are any of the crucial fields invalid?
 225             if ($field[2] =~ /(?:^\s*$|[a-z])/ || $field[6] =~ /(?:^\s*$|[a-z])/ || $field[7] =~ /(?:^\s*$|[a-z])/) {
 226                                 dbg('chan', "Spot contains lower case callsigns or blanks, rejected");
 227                                 return;
 228                         }
 229
 230                         # do some de-duping
 231                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 232                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 233                                 dbg('chan', "Duplicate Spot ignored\n");
 234                                 return;
 235                         }
 236
 237                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 238
 239             #
 240                         # @spot at this point contains:-
 241             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 242                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 243                         # you should be able to route on any of these
 244             #
 245
 246                         # fix up qra locators of known users
 247                         my $user = DXUser->get_current($spot[4]);
 248                         if ($user) {
 249                                 my $qra = $user->qra;
 250                                 unless ($qra && DXBearing::is_qra($qra)) {
 251                                         my $lat = $user->lat;
 252                                         my $long = $user->long;
 253                                         if (defined $lat && defined $long) {
 254                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 255                                                 $user->put;
 256                                         }
 257                                 }
 258
 259                                 # send a remote command to a distant cluster if it is visible and there is no
 260                                 # qra locator and we havn't done it for a month.
 261
 262                                 unless ($user->qra) {
 263                                         my $node;
 264                                         my $to = $user->homenode;
 265                                         my $last = $user->lastoper || 0;
 266                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 267                                                 my $cmd = "forward/opernam $spot[4]";
 268                                                 # send the rcmd but we aren't interested in the replies...
 269                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 270                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 271                                                 } else {
 272                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 273                                                 }
 274                                                 if ($to ne $field[7]) {
 275                                                         $to = $field[7];
 276                                                         $node = DXCluster->get_exact($to);
 277                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 278                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 279                                                         } else {
 280                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 281                                                         }
 282                                                 }
 283                                                 $user->lastoper($main::systime);
 284                                                 $user->put;
 285                                         }
 286                                 }
 287                         }
 288
 289                         # local processing
 290                         my $r;
 291                         eval {
 292                                 $r = Local::spot($self, @spot);
 293                         };
 294 #                       dbg('local', "Local::spot1 error $@") if $@;
 295                         return if $r;
 296
 297                         # DON'T be silly and send on PC26s!
 298                         return if $pcno == 26;
 299
 300                         # send out the filtered spots
 301                         send_dx_spot($self, $line, @spot) if @spot;
 302                         return;
 303                 }
 304
 305                 if ($pcno == 12) {              # announces
 306                         # announce duplicate checking
 307                         $field[3] =~ s/^\s+//;  # remove leading blanks
 308                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 309                                 dbg('chan', "Duplicate Announce ignored\n");
 310                                 return;
 311                         }
 312
 313                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 314
 315                                 # global ann filtering on INPUT
 316                                 if ($self->{inannfilter}) {
 317                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 318                                         unless ($filter) {
 319                                                 dbg('chan', "Rejected by filter");
 320                                                 return;
 321                                         }
 322                                 }
 323
 324                                 # send it
 325                                 $self->send_announce($line, @field[1..6]);
 326                         } else {
 327                                 $self->route($field[2], $line);
 328                         }
 329
 330                         return;
 331                 }
 332
 333                 if ($pcno == 13) {
 334                         last SWITCH;
 335                 }
 336                 if ($pcno == 14) {
 337                         last SWITCH;
 338                 }
 339                 if ($pcno == 15) {
 340                         last SWITCH;
 341                 }
 342
 343                 if ($pcno == 16) {              # add a user
 344                         my $node = DXCluster->get_exact($field[1]);
 345                         my $dxchan;
 346                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 347                                 # add it to the node table if it isn't present and it's
 348                                 # connected locally
 349                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 350                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 351
 352                         }
 353                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 354                         return unless $node->isa('DXNode');
 355                         if ($node->dxchan != $self) {
 356                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 357                                 return;
 358                         }
 359                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 360                                 dbg('chan', "LOOP: $field[1] connected locally");
 361                                 return;
 362                         }
 363                         my $i;
 364
 365                         for ($i = 2; $i < $#field; $i++) {
 366                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 367                                 next if !$call || length $call < 3 || length $call > 8;
 368                                 next if !$confmode;
 369                                 $call = uc $call;
 370                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 371
 372                                 $confmode = $confmode eq '*';
 373                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 374
 375                                 # add this station to the user database, if required
 376                                 $call =~ s/-\d+$//o;        # remove ssid for users
 377                                 my $user = DXUser->get_current($call);
 378                                 $user = DXUser->new($call) if !$user;
 379                                 $user->homenode($node->call) if !$user->homenode;
 380                                 $user->node($node->call);
 381                                 $user->lastin($main::systime) unless DXChannel->get($call);
 382                                 $user->put;
 383                         }
 384
 385                         # queue up any messages (look for privates only)
 386                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 387                         last SWITCH;
 388                 }
 389
 390                 if ($pcno == 17) {              # remove a user
 391                         my $node = DXCluster->get_exact($field[2]);
 392                         my $dxchan;
 393                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 394                                 # add it to the node table if it isn't present and it's
 395                                 # connected locally
 396                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 397                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 398                                 return;
 399                         }
 400                         return unless $node;
 401                         return unless $node->isa('DXNode');
 402                         if ($node->dxchan != $self) {
 403                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 404                                 return;
 405                         }
 406                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 407                                 dbg('chan', "LOOP: $field[2] connected locally");
 408                                 return;
 409                         }
 410                         my $ref = DXCluster->get_exact($field[1]);
 411                         $ref->del() if $ref;
 412                         last SWITCH;
 413                 }
 414
 415                 if ($pcno == 18) {              # link request
 416                         $self->state('init');
 417
 418                         # first clear out any nodes on this dxchannel
 419                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 420                         foreach my $node (@gonenodes) {
 421                                 next if $node->dxchan == $DXProt::me;
 422                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 423                                 $node->del();
 424                         }
 425                         $self->send_local_config();
 426                         $self->send(pc20());
 427                         return;             # we don't pass these on
 428                 }
 429
 430                 if ($pcno == 19) {              # incoming cluster list
 431                         my $i;
 432                         my $newline = "PC19^";
 433                         for ($i = 1; $i < $#field-1; $i += 4) {
 434                                 my $here = $field[$i];
 435                                 my $call = uc $field[$i+1];
 436                                 my $confmode = $field[$i+2];
 437                                 my $ver = $field[$i+3];
 438
 439                                 $ver = 5400 if !$ver && $allowzero;
 440
 441                                 # now check the call over
 442                                 my $node = DXCluster->get_exact($call);
 443                                 if ($node) {
 444                                         my $dxchan;
 445                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 446                                                 dbg('chan', "LOOP: $call connected locally");
 447                                         }
 448                                     if ($node->dxchan != $self) {
 449                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 450                                                 next;
 451                                         }
 452                                         dbg('chan', "already have $call");
 453                                         next;
 454                                 }
 455
 456                                 # check for sane parameters
 457                                 next if $ver < 5000; # only works with version 5 software
 458                                 next if length $call < 3; # min 3 letter callsigns
 459
 460                                 # add it to the nodes table and outgoing line
 461                                 $newline .= "$here^$call^$confmode^$ver^";
 462                                 DXNode->new($self, $call, $confmode, $here, $ver);
 463
 464                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 465                                 my $mref = DXMsg::get_busy($call);
 466                                 $mref->stop_msg($call) if $mref;
 467
 468                                 # add this station to the user database, if required (don't remove SSID from nodes)
 469                                 my $user = DXUser->get_current($call);
 470                                 if (!$user) {
 471                                         $user = DXUser->new($call);
 472                                         $user->sort('A');
 473                                         $user->priv(1);                   # I have relented and defaulted nodes
 474                                         $self->{priv} = 1;                # to user RCMDs allowed
 475                                         $user->homenode($call);
 476                                         $user->node($call);
 477                                 }
 478                                 $user->lastin($main::systime) unless DXChannel->get($call);
 479                                 $user->put;
 480                         }
 481
 482                         return if $newline eq "PC19^";
 483
 484                         # add hop count
 485                         $newline .=  get_hops(19) . "^";
 486                         $line = $newline;
 487                         last SWITCH;
 488                 }
 489
 490                 if ($pcno == 20) {              # send local configuration
 491                         $self->send_local_config();
 492                         $self->send(pc22());
 493                         $self->state('normal');
 494                         return;
 495                 }
 496
 497                 if ($pcno == 21) {              # delete a cluster from the list
 498                         my $call = uc $field[1];
 499                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 500                                 my $node = DXCluster->get_exact($call);
 501                                 if ($node) {
 502                                         if ($node->dxchan != $self) {
 503                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 504                                                 return;
 505                                         }
 506                                         my $dxchan;
 507                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 508                                                 dbg('chan', "LOOP: $call connected locally");
 509                                                 return;
 510                                         }
 511                                         $node->del();
 512                                 } else {
 513                                         dbg('chan', "$call not in table, dropped");
 514                                         return;
 515                                 }
 516                         }
 517                         last SWITCH;
 518                 }
 519
 520                 if ($pcno == 22) {
 521                         $self->state('normal');
 522                         return;
 523                 }
 524
 525                 if ($pcno == 23 || $pcno == 27) { # WWV info
 526
 527                         # route 'foreign' pc27s
 528                         if ($pcno == 27) {
 529                                 if ($field[8] ne $main::mycall) {
 530                                         $self->route($field[8], $line);
 531                                         return;
 532                                 }
 533                         }
 534
 535                         # do some de-duping
 536                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 537                         my $sfi = unpad($field[3]);
 538                         my $k = unpad($field[4]);
 539                         my $i = unpad($field[5]);
 540                         my ($r) = $field[6] =~ /R=(\d+)/;
 541                         $r = 0 unless $r;
 542                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 543                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 544                                 return;
 545                         }
 546                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 547                                 dbg('chan', "Dup WWV Spot ignored\n");
 548                                 return;
 549                         }
 550                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 551
 552                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 553
 554                         my $rep;
 555                         eval {
 556                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 557                         };
 558 #                       dbg('local', "Local::wwv2 error $@") if $@;
 559                         return if $rep;
 560
 561                         # DON'T be silly and send on PC27s!
 562                         return if $pcno == 27;
 563
 564                         # broadcast to the eager world
 565                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 566                         return;
 567                 }
 568
 569                 if ($pcno == 24) {              # set here status
 570                         my $call = uc $field[1];
 571                         my $ref = DXCluster->get_exact($call);
 572                         $ref->here($field[2]) if $ref;
 573                         last SWITCH;
 574                 }
 575
 576                 if ($pcno == 25) {      # merge request
 577                         if ($field[1] ne $main::mycall) {
 578                                 $self->route($field[1], $line);
 579                                 return;
 580                         }
 581                         if ($field[2] eq $main::mycall) {
 582                                 dbg('chan', "Trying to merge to myself, ignored");
 583                                 return;
 584                         }
 585
 586                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 587
 588                         # spots
 589                         if ($field[3] > 0) {
 590                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 591                                 my $in;
 592                                 foreach $in (@in) {
 593                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 594                                 }
 595                         }
 596
 597                         # wwv
 598                         if ($field[4] > 0) {
 599                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 600                                 my $in;
 601                                 foreach $in (@in) {
 602                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 603                                 }
 604                         }
 605                         return;
 606                 }
 607
 608                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 609                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 610                                 DXMsg::process($self, $line);
 611                         } else {
 612                                 $self->route($field[1], $line);
 613                         }
 614                         return;
 615                 }
 616
 617                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 618                         if ($field[1] eq $main::mycall) {
 619                                 my $ref = DXUser->get_current($field[2]);
 620                                 my $cref = DXCluster->get($field[2]);
 621                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 622                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 623                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 624                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 625                                                 my $oldpriv = $self->{priv};
 626                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 627                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 628                                                 $self->{priv} = $oldpriv;
 629                                                 for (@in) {
 630                                                         s/\s*$//og;
 631                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 632                                                         Log('rcmd', 'out', $field[2], $_);
 633                                                 }
 634                                                 delete $self->{remotecmd};
 635                                         } else {
 636                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 637                                         }
 638                                 } else {
 639                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 640                                 }
 641                         } else {
 642                                 my $ref = DXUser->get_current($field[1]);
 643                                 if ($ref && $ref->is_clx) {
 644                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 645                                 } else {
 646                                         $self->route($field[1], $line);
 647                                 }
 648                         }
 649                         return;
 650                 }
 651
 652                 if ($pcno == 35) {              # remote command replies
 653                         if ($field[1] eq $main::mycall) {
 654                                 my $s = $rcmds{$field[2]};
 655                                 if ($s) {
 656                                         my $dxchan = DXChannel->get($s->{call});
 657                                         $dxchan->send($field[3]) if $dxchan;
 658                                         delete $rcmds{$field[2]} if !$dxchan;
 659                                 }
 660                         } else {
 661                                 my $ref = DXUser->get_current($field[1]);
 662                                 if ($ref && $ref->is_clx) {
 663                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 664                                 } else {
 665                                         $self->route($field[1], $line);
 666                                 }
 667                         }
 668                         return;
 669                 }
 670
 671                 # for pc 37 see 44 onwards
 672
 673                 if ($pcno == 38) {              # node connected list from neighbour
 674                         return;
 675                 }
 676
 677                 if ($pcno == 39) {              # incoming disconnect
 678                         $self->disconnect(1);
 679                         return;
 680                 }
 681
 682                 if ($pcno == 41) {              # user info
 683                         # add this station to the user database, if required
 684                         my $user = DXUser->get_current($field[1]);
 685                         if (!$user) {
 686                                 # then try without an SSID
 687                                 $field[1] =~ s/-\d+$//o;
 688                                 $user = DXUser->get_current($field[1]);
 689                         }
 690                         $user = DXUser->new($field[1]) if !$user;
 691
 692                         if ($field[2] == 1) {
 693                                 $user->name($field[3]);
 694                         } elsif ($field[2] == 2) {
 695                                 $user->qth($field[3]);
 696                         } elsif ($field[2] == 3) {
 697                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 698                                 $user->lat($lat);
 699                                 $user->long($long);
 700                                 my $qra = $user->qra || DXBearing::lltoqra($lat, $long);
 701                                 $qra = DXBearing::lltoqra($lat, $long) unless $qra && DXBearing::is_qra($qra);
 702                                 $user->qra($qra) if $qra ne $user->qra;
 703                         } elsif ($field[2] == 4) {
 704                                 $user->homenode($field[3]);
 705                         }
 706                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 707                         $user->put;
 708                         last SWITCH;
 709                 }
 710                 if ($pcno == 43) {
 711                         last SWITCH;
 712                 }
 713                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 714                         DXDb::process($self, $line);
 715                         return;
 716                 }
 717
 718                 if ($pcno == 50) {              # keep alive/user list
 719                         my $node = DXCluster->get_exact($field[1]);
 720                         if ($node) {
 721                                 return unless $node->isa('DXNode');
 722                                 return unless $node->dxchan == $self;
 723                                 $node->update_users($field[2]);
 724                         }
 725                         last SWITCH;
 726                 }
 727
 728                 if ($pcno == 51) {              # incoming ping requests/answers
 729
 730                         # is it for us?
 731                         if ($field[1] eq $main::mycall) {
 732                                 my $flag = $field[3];
 733                                 if ($flag == 1) {
 734                                         $self->send(pc51($field[2], $field[1], '0'));
 735                                 } else {
 736                                         # it's a reply, look in the ping list for this one
 737                                         my $ref = $pings{$field[2]};
 738                                         if ($ref) {
 739                                                 my $tochan =  DXChannel->get($field[2]);
 740                                                 while (@$ref) {
 741                                                         my $r = shift @$ref;
 742                                                         my $dxchan = DXChannel->get($r->{call});
 743                                                         next unless $dxchan;
 744                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 745                                                         if ($dxchan->is_user) {
 746                                                                 my $s = sprintf "%.2f", $t;
 747                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 748                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 749                                                         } elsif ($dxchan->is_node) {
 750                                                                 if ($tochan) {
 751                                                                         $tochan->{nopings} = 2; # pump up the timer
 752                                                                         push @{$tochan->{pingtime}}, $t;
 753                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 754                                                                         my $st;
 755                                                                         for (@{$tochan->{pingtime}}) {
 756                                                                                 $st += $_;
 757                                                                         }
 758                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 759                                                                 }
 760                                                         }
 761                                                 }
 762                                         }
 763                                 }
 764                         } else {
 765                                 # route down an appropriate thingy
 766                                 $self->route($field[1], $line);
 767                         }
 768                         return;
 769                 }
 770
 771                 if ($pcno == 73) {  # WCY broadcasts
 772
 773                         # do some de-duping
 774                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 775                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 776                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 777                                 return;
 778                         }
 779                         @field = map { unpad($_) } @field;
 780                         if (WCY::dup($d,@field[3..7])) {
 781                                 dbg('chan', "Dup WCY Spot ignored\n");
 782                                 return;
 783                         }
 784
 785                         my $wcy = WCY::update($d, @field[2..12]);
 786
 787                         my $rep;
 788                         eval {
 789                                 $rep = Local::wwv($self, @field[1..12]);
 790                         };
 791                         # dbg('local', "Local::wcy error $@") if $@;
 792                         return if $rep;
 793
 794                         # broadcast to the eager world
 795                         send_wcy_spot($self, $line, $d, @field[2..12]);
 796                         return;
 797                 }
 798
 799                 if ($pcno == 84) { # remote commands (incoming)
 800                         if ($field[1] eq $main::mycall) {
 801                                 my $ref = DXUser->get_current($field[2]);
 802                                 my $cref = DXCluster->get($field[2]);
 803                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 804                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 805                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 806                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 807                                                 my $oldpriv = $self->{priv};
 808                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 809                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 810                                                 $self->{priv} = $oldpriv;
 811                                                 for (@in) {
 812                                                         s/\s*$//og;
 813                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 814                                                         Log('rcmd', 'out', $field[2], $_);
 815                                                 }
 816                                                 delete $self->{remotecmd};
 817                                         } else {
 818                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 819                                         }
 820                                 } else {
 821                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 822                                 }
 823                         } else {
 824                                 my $ref = DXUser->get_current($field[1]);
 825                                 if ($ref && $ref->is_clx) {
 826                                         $self->route($field[1], $line);
 827                                 } else {
 828                                         route($field[1], pc34($field[2], $field[1], $field[4]));
 829                                 }
 830                         }
 831                         return;
 832                 }
 833
 834                 if ($pcno == 85) {              # remote command replies
 835                         if ($field[1] eq $main::mycall) {
 836                                 my $dxchan = DXChannel->get($field[3]);
 837                                 if ($dxchan) {
 838                                         $dxchan->send($field[4]);
 839                                 } else {
 840                                         my $s = $rcmds{$field[2]};
 841                                         if ($s) {
 842                                                 $dxchan = DXChannel->get($s->{call});
 843                                                 $dxchan->send($field[4]) if $dxchan;
 844                                                 delete $rcmds{$field[2]} if !$dxchan;
 845                                         }
 846                                 }
 847                         } else {
 848                                 my $ref = DXUser->get_current($field[1]);
 849                                 if ($ref && $ref->is_clx) {
 850                                         $self->route($field[1], $line);
 851                                 } else {
 852                                         route($field[1], pc35($field[2], $field[1], $field[4]));
 853                                 }
 854                         }
 855                         return;
 856                 }
 857         }
 858
 859         # if get here then rebroadcast the thing with its Hop count decremented (if
 860         # there is one). If it has a hop count and it decrements to zero then don't
 861         # rebroadcast it.
 862         #
 863         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 864         #        REBROADCAST!!!!
 865         #
 866
 867         unless ($self->{isolate}) {
 868                 broadcast_ak1a($line, $self); # send it to everyone but me
 869         }
 870 }
 871
 872 #
 873 # This is called from inside the main cluster processing loop and is used
 874 # for despatching commands that are doing some long processing job
 875 #
 876 sub process
 877 {
 878         my $t = time;
 879         my @dxchan = DXChannel->get_all();
 880         my $dxchan;
 881
 882         foreach $dxchan (@dxchan) {
 883                 next unless $dxchan->is_node();
 884                 next if $dxchan == $me;
 885
 886                 # send a pc50 out on this channel
 887                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
 888                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
 889                         $dxchan->pc50_t($t);
 890                 }
 891
 892                 # send a ping out on this channel
 893                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
 894                         if ($dxchan->{nopings} <= 0) {
 895                                 $dxchan->disconnect;
 896                         } else {
 897                                 addping($main::mycall, $dxchan->call);
 898                                 $dxchan->{nopings} -= 1;
 899                                 $dxchan->{lastping} = $t;
 900                         }
 901                 }
 902         }
 903
 904         my $key;
 905         my $val;
 906         my $cutoff;
 907         if ($main::systime - 3600 > $last_hour) {
 908                 Spot::process;
 909                 Geomag::process;
 910                 AnnTalk::process;
 911                 $last_hour = $main::systime;
 912         }
 913 }
 914
 915 #
 916 # finish up a pc context
 917 #
 918 sub finish
 919 {
 920         my $self = shift;
 921         my $call = $self->call;
 922         my $conn = shift;
 923         my $ref = DXCluster->get_exact($call);
 924
 925         # unbusy and stop and outgoing mail
 926         my $mref = DXMsg::get_busy($call);
 927         $mref->stop_msg($call) if $mref;
 928
 929         # broadcast to all other nodes that all the nodes connected to via me are gone
 930         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 931         my $node;
 932
 933         foreach $node (@gonenodes) {
 934                 next if $node->call eq $call;
 935                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 936                 $node->del();
 937         }
 938
 939         # remove outstanding pings
 940         delete $pings{$call};
 941
 942         # now broadcast to all other ak1a nodes that I have gone
 943         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 944
 945         # I was the last node visited
 946     $self->user->node($main::mycall);
 947
 948         # send info to all logged in thingies
 949         $self->tell_login('logoutn');
 950
 951         Log('DXProt', $call . " Disconnected");
 952         $ref->del() if $ref;
 953 }
 954
 955 #
 956 # some active measures
 957 #
 958 sub send_dx_spot
 959 {
 960         my $self = shift;
 961         my $line = shift;
 962         my @dxchan = DXChannel->get_all();
 963         my $dxchan;
 964
 965         # send it if it isn't the except list and isn't isolated and still has a hop count
 966         # taking into account filtering and so on
 967         foreach $dxchan (@dxchan) {
 968                 my $routeit;
 969                 my ($filter, $hops);
 970
 971                 if ($dxchan->{spotfilter}) {
 972                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 973                         next unless $filter;
 974                 }
 975
 976                 if ($dxchan->is_node) {
 977                         next if $dxchan == $self;
 978                         if ($hops) {
 979                                 $routeit = $line;
 980                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 981                         } else {
 982                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 983                                 next unless $routeit;
 984                         }
 985                         if ($filter) {
 986                                 $dxchan->send($routeit) if $routeit;
 987                         } else {
 988                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 989                         }
 990                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
 991                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
 992                         $buf .= "\a\a" if $dxchan->{beep};
 993                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 994                                 $dxchan->send($buf);
 995                         } else {
 996                                 $dxchan->delay($buf);
 997                         }
 998                 }
 999         }
1000 }
1001
1002 sub send_wwv_spot
1003 {
1004         my $self = shift;
1005         my $line = shift;
1006         my @dxchan = DXChannel->get_all();
1007         my $dxchan;
1008
1009         # send it if it isn't the except list and isn't isolated and still has a hop count
1010         # taking into account filtering and so on
1011         foreach $dxchan (@dxchan) {
1012                 my $routeit;
1013                 my ($filter, $hops);
1014
1015                 if ($dxchan->{wwvfilter}) {
1016                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
1017                          next unless $filter;
1018                 }
1019                 if ($dxchan->is_node) {
1020                         next if $dxchan == $self;
1021                         if ($hops) {
1022                                 $routeit = $line;
1023                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1024                         } else {
1025                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1026                                 next unless $routeit;
1027                         }
1028                         if ($filter) {
1029                                 $dxchan->send($routeit) if $routeit;
1030                         } else {
1031                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1032
1033                         }
1034                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1035                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1036                         $buf .= "\a\a" if $dxchan->{beep};
1037                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1038                                 $dxchan->send($buf);
1039                         } else {
1040                                 $dxchan->delay($buf);
1041                         }
1042                 }
1043         }
1044 }
1045
1046 sub send_wcy_spot
1047 {
1048         my $self = shift;
1049         my $line = shift;
1050         my @dxchan = DXChannel->get_all();
1051         my $dxchan;
1052
1053         # send it if it isn't the except list and isn't isolated and still has a hop count
1054         # taking into account filtering and so on
1055         foreach $dxchan (@dxchan) {
1056                 my $routeit;
1057                 my ($filter, $hops);
1058
1059                 if ($dxchan->{wcyfilter}) {
1060                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1061                          next unless $filter;
1062                 }
1063                 if ($dxchan->is_clx || $dxchan->is_spider) {
1064                         next if $dxchan == $self;
1065                         if ($hops) {
1066                                 $routeit = $line;
1067                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1068                         } else {
1069                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1070                                 next unless $routeit;
1071                         }
1072                         if ($filter) {
1073                                 $dxchan->send($routeit) if $routeit;
1074                         } else {
1075                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1076                         }
1077                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1078                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1079                         $buf .= "\a\a" if $dxchan->{beep};
1080                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1081                                 $dxchan->send($buf);
1082                         } else {
1083                                 $dxchan->delay($buf);
1084                         }
1085                 }
1086         }
1087 }
1088
1089 # send an announce
1090 sub send_announce
1091 {
1092         my $self = shift;
1093         my $line = shift;
1094         my @dxchan = DXChannel->get_all();
1095         my $dxchan;
1096         my $text = unpad($_[2]);
1097         my $target;
1098         my $to = 'To ';
1099
1100         if ($_[3] eq '*') {     # sysops
1101                 $target = "SYSOP";
1102         } elsif ($_[3] gt ' ') { # speciality list handling
1103                 my ($name) = split /\./, $_[3];
1104                 $target = "$name"; # put the rest in later (if bothered)
1105         }
1106
1107         if ($_[5] eq '1') {
1108                 $target = "WX";
1109                 $to = '';
1110         }
1111         $target = "All" if !$target;
1112
1113         Log('ann', $target, $_[0], $text);
1114
1115         # send it if it isn't the except list and isn't isolated and still has a hop count
1116         # taking into account filtering and so on
1117         foreach $dxchan (@dxchan) {
1118                 my $routeit;
1119                 my ($filter, $hops);
1120
1121                 if ($dxchan->{annfilter}) {
1122                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1123                         next unless $filter;
1124                 }
1125                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1126                         next if $dxchan == $self;
1127                         if ($hops) {
1128                                 $routeit = $line;
1129                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1130                         } else {
1131                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1132                                 next unless $routeit;
1133                         }
1134                         if ($filter) {
1135                                 $dxchan->send($routeit) if $routeit;
1136                         } else {
1137                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1138
1139                         }
1140                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1141                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1142                         my $buf = "$to$target de $_[0]: $text";
1143                         $buf .= "\a\a" if $dxchan->{beep};
1144                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1145                                 $dxchan->send($buf);
1146                         } else {
1147                                 $dxchan->delay($buf);
1148                         }
1149                 }
1150         }
1151 }
1152
1153 sub send_local_config
1154 {
1155         my $self = shift;
1156         my $n;
1157         my @nodes;
1158         my @localnodes;
1159         my @remotenodes;
1160
1161         # send our nodes
1162         if ($self->{isolate}) {
1163                 @localnodes = (DXCluster->get_exact($main::mycall));
1164         } else {
1165                 # create a list of all the nodes that are not connected to this connection
1166                 # and are not themselves isolated, this to make sure that isolated nodes
1167         # don't appear outside of this node
1168                 @nodes = DXNode::get_all();
1169                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1170                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1171                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1172                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1173                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1174                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1175         }
1176
1177         my @s = $me->pc19(@localnodes, @remotenodes);
1178         for (@s) {
1179                 my $routeit = adjust_hops($self, $_);
1180                 $self->send($routeit) if $routeit;
1181         }
1182
1183         # get all the users connected on the above nodes and send them out
1184         foreach $n (@localnodes, @remotenodes) {
1185                 my @users = values %{$n->list};
1186                 my @s = pc16($n, @users);
1187                 for (@s) {
1188                         my $routeit = adjust_hops($self, $_);
1189                         $self->send($routeit) if $routeit;
1190                 }
1191         }
1192 }
1193
1194 #
1195 # route a message down an appropriate interface for a callsign
1196 #
1197 # is called route(to, pcline);
1198 #
1199 sub route
1200 {
1201         my ($self, $call, $line) = @_;
1202         my $cl = DXCluster->get_exact($call);
1203         if ($cl) {       # don't route it back down itself
1204                 if (ref $self && $call eq $self->{call}) {
1205                         dbg('chan', "Trying to route back to source, dropped");
1206                         return;
1207                 }
1208                 my $hops;
1209                 my $dxchan = $cl->{dxchan};
1210                 if ($dxchan) {
1211                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1212                         if ($routeit) {
1213                                 $dxchan->send($routeit) if $dxchan;
1214                         }
1215                 }
1216         }
1217 }
1218
1219 # broadcast a message to all clusters taking into account isolation
1220 # [except those mentioned after buffer]
1221 sub broadcast_ak1a
1222 {
1223         my $s = shift;                          # the line to be rebroadcast
1224         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1225         my @dxchan = DXChannel::get_all_ak1a();
1226         my $dxchan;
1227
1228         # send it if it isn't the except list and isn't isolated and still has a hop count
1229         foreach $dxchan (@dxchan) {
1230                 next if grep $dxchan == $_, @except;
1231                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1232                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1233         }
1234 }
1235
1236 # broadcast a message to all clusters ignoring isolation
1237 # [except those mentioned after buffer]
1238 sub broadcast_all_ak1a
1239 {
1240         my $s = shift;                          # the line to be rebroadcast
1241         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1242         my @dxchan = DXChannel::get_all_ak1a();
1243         my $dxchan;
1244
1245         # send it if it isn't the except list and isn't isolated and still has a hop count
1246         foreach $dxchan (@dxchan) {
1247                 next if grep $dxchan == $_, @except;
1248                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1249                 $dxchan->send($routeit);
1250         }
1251 }
1252
1253 # broadcast to all users
1254 # storing the spot or whatever until it is in a state to receive it
1255 sub broadcast_users
1256 {
1257         my $s = shift;                          # the line to be rebroadcast
1258         my $sort = shift;           # the type of transmission
1259         my $fref = shift;           # a reference to an object to filter on
1260         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1261         my @dxchan = DXChannel::get_all_users();
1262         my $dxchan;
1263         my @out;
1264
1265         foreach $dxchan (@dxchan) {
1266                 next if grep $dxchan == $_, @except;
1267                 push @out, $dxchan;
1268         }
1269         broadcast_list($s, $sort, $fref, @out);
1270 }
1271
1272 # broadcast to a list of users
1273 sub broadcast_list
1274 {
1275         my $s = shift;
1276         my $sort = shift;
1277         my $fref = shift;
1278         my $dxchan;
1279
1280         foreach $dxchan (@_) {
1281                 my $filter = 1;
1282
1283                 if ($sort eq 'dx') {
1284                     next unless $dxchan->{dx};
1285                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1286                         next unless $filter;
1287                 }
1288                 next if $sort eq 'ann' && !$dxchan->{ann};
1289                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1290                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1291                 next if $sort eq 'wx' && !$dxchan->{wx};
1292
1293                 $s =~ s/\a//og unless $dxchan->{beep};
1294
1295                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1296                         $dxchan->send($s);
1297                 } else {
1298                         $dxchan->delay($s);
1299                 }
1300         }
1301 }
1302
1303
1304 #
1305 # obtain the hops from the list for this callsign and pc no
1306 #
1307
1308 sub get_hops
1309 {
1310         my $pcno = shift;
1311         my $hops = $DXProt::hopcount{$pcno};
1312         $hops = $DXProt::def_hopcount if !$hops;
1313         return "H$hops";
1314 }
1315
1316 #
1317 # adjust the hop count on a per node basis using the user loadable
1318 # hop table if available or else decrement an existing one
1319 #
1320
1321 sub adjust_hops
1322 {
1323         my $self = shift;
1324         my $s = shift;
1325         my $call = $self->{call};
1326         my $hops;
1327
1328         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1329                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1330                 confess "$call called adjust_hops with '$s'" unless $pcno;
1331                 my $ref = $nodehops{$call} if %nodehops;
1332                 if ($ref) {
1333                         my $newhops = $ref->{$pcno};
1334                         return "" if defined $newhops && $newhops == 0;
1335                         $newhops = $ref->{default} unless $newhops;
1336                         return "" if defined $newhops && $newhops == 0;
1337                         $newhops = $hops if !$newhops;
1338                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1339                 } else {
1340                         # simply decrement it
1341                         $hops--;
1342                         return "" if !$hops;
1343                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1344                 }
1345         }
1346         return $s;
1347 }
1348
1349 #
1350 # load hop tables
1351 #
1352 sub load_hops
1353 {
1354         my $self = shift;
1355         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1356         do "$main::data/hop_table.pl";
1357         return $@ if $@;
1358         return 0;
1359 }
1360
1361
1362 # add a ping request to the ping queues
1363 sub addping
1364 {
1365         my ($from, $to) = @_;
1366         my $ref = $pings{$to} || [];
1367         my $r = {};
1368         $r->{call} = $from;
1369         $r->{t} = [ gettimeofday ];
1370         route(undef, $to, pc51($to, $main::mycall, 1));
1371         push @$ref, $r;
1372         $pings{$to} = $ref;
1373 }
1374
1375 # add a rcmd request to the rcmd queues
1376 sub addrcmd
1377 {
1378         my ($self, $to, $cmd) = @_;
1379
1380         my $r = {};
1381         $r->{call} = $self->{call};
1382         $r->{t} = $main::systime;
1383         $r->{cmd} = $cmd;
1384         $rcmds{$to} = $r;
1385
1386         my $ref = DXCluster->get_exact($to);
1387     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1388                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1389         } else {
1390                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1391         }
1392 }
1393
1394 sub disconnect
1395 {
1396         my $self = shift;
1397         my $nopc39 = shift;
1398
1399         if ($self->{conn} && !$nopc39) {
1400                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1401         }
1402
1403         $self->SUPER::disconnect;
1404 }
1405 1;
1406 __END__