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