perl/DXProt.pm

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