perl/Thingy/PCProt.pm

   1 #
   2 # This module is the PC Protocol Thingy Handler
   3 # It will route transforming them on the way as required.
   4 #
   5 # Copyright (c) 2001 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 use strict;
  11
  12 use DXDebug;
  13
  14 use vars qw($VERSION $BRANCH);
  15 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
  16 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
  17 $main::build += $VERSION;
  18 $main::branch += $BRANCH;
  19
  20
  21 package Thingy::PC10;
  22 use vars qw(@ISA);
  23 @ISA = qw(Thingy);
  24
  25 # incoming talk commands
  26 sub handle
  27 {
  28         my $self = shift;
  29         my $dxchan = shift;
  30
  31         # rsfp check
  32         return if $rspfcheck and !$self->rspfcheck(0, $_[6], $_[1]);
  33
  34         # will we allow it at all?
  35         if ($censorpc) {
  36                 my @bad;
  37                 if (@bad = BadWords::check($_[3])) {
  38                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
  39                         return;
  40                 }
  41         }
  42
  43         # is it for me or one of mine?
  44         my ($from, $to, $via, $call, $dxchan);
  45         $from = $_[1];
  46         if ($_[5] gt ' ') {
  47                 $via = $_[2];
  48                 $to = $_[5];
  49         } else {
  50                 $to = $_[2];
  51         }
  52
  53         # if this is a 'nodx' node then ignore it
  54         if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
  55                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
  56                 return;
  57         }
  58
  59         # if this is a 'bad spotter' user then ignore it
  60         my $nossid = $from;
  61         $nossid =~ s/-\d+$//;
  62         if ($badspotter->in($nossid)) {
  63                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
  64                 return;
  65         }
  66
  67         # if we are converting announces to talk is it a dup?
  68         if ($ann_to_talk) {
  69                 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
  70                         dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
  71                         return;
  72                 }
  73         }
  74
  75         # it is here and logged on
  76         $dxchan = DXChannel->get($main::myalias) if $to eq $main::mycall;
  77         $dxchan = DXChannel->get($to) unless $dxchan;
  78         if ($dxchan && $dxchan->is_user) {
  79                 $_[3] =~ s/\%5E/^/g;
  80                 $dxchan->talk($from, $to, $via, $_[3]);
  81                 return;
  82         }
  83
  84         # is it elsewhere, visible on the cluster via the to address?
  85         # note: this discards the via unless the to address is on
  86         # the via address
  87         my ($ref, $vref);
  88         if ($ref = Route::get($to)) {
  89                 $vref = Route::Node::get($via) if $via;
  90                 $vref = undef unless $vref && grep $to eq $_, $vref->users;
  91                 $ref->dxchan->talk($from, $to, $vref ? $via : undef, $_[3], $_[6]);
  92                 return;
  93         }
  94
  95         # not visible here, send a message of condolence
  96         $vref = undef;
  97         $ref = Route::get($from);
  98         $vref = $ref = Route::Node::get($_[6]) unless $ref;
  99         if ($ref) {
 100                 $dxchan = $ref->dxchan;
 101                 $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
 102         }
 103 }
 104
 105 # DX Spot handling
 106 package Thingy::PC11;
 107 use vars qw(@ISA);
 108 @ISA = qw(Thingy);
 109
 110 sub handle
 111 {
 112         my $self = shift;
 113         my $dxchan = shift;
 114
 115         # route 'foreign' pc26s
 116         if ($pcno == 26) {
 117                 if ($_[7] ne $main::mycall) {
 118                         $self->route($_[7], $line);
 119                         return;
 120                 }
 121         }
 122
 123         # rsfp check
 124         #                       return if $rspfcheck and !$self->rspfcheck(1, $_[7], $_[6]);
 125
 126         # if this is a 'nodx' node then ignore it
 127         if ($badnode->in($_[7])) {
 128                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 129                 return;
 130         }
 131
 132         # if this is a 'bad spotter' user then ignore it
 133         my $nossid = $_[6];
 134         $nossid =~ s/-\d+$//;
 135         if ($badspotter->in($nossid)) {
 136                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 137                 return;
 138         }
 139
 140         # convert the date to a unix date
 141         my $d = cltounix($_[3], $_[4]);
 142         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 143         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 144                 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
 145                 return;
 146         }
 147
 148         # is it 'baddx'
 149         if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) {
 150                 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
 151                 return;
 152         }
 153
 154         # do some de-duping
 155         $_[5] =~ s/^\s+//;                      # take any leading blanks off
 156         $_[2] = unpad($_[2]);           # take off leading and trailing blanks from spotted callsign
 157         if ($_[2] =~ /BUST\w*$/) {
 158                 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
 159                 return;
 160         }
 161         if ($censorpc) {
 162                 my @bad;
 163                 if (@bad = BadWords::check($_[5])) {
 164                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 165                         return;
 166                 }
 167         }
 168
 169
 170         my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $_[6], $_[7]);
 171         # global spot filtering on INPUT
 172         if ($self->{inspotsfilter}) {
 173                 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
 174                 unless ($filter) {
 175                         dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
 176                         return;
 177                 }
 178         }
 179
 180         # this goes after the input filtering, but before the add
 181         # so that if it is input filtered, it isn't added to the dup
 182         # list. This allows it to come in from a "legitimate" source
 183         if (Spot::dup($_[1], $_[2], $d, $_[5], $_[6])) {
 184                 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
 185                 return;
 186         }
 187
 188         # add it
 189         Spot::add(@spot);
 190
 191         #
 192         # @spot at this point contains:-
 193         # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 194         # then  spotted itu, spotted cq, spotters itu, spotters cq
 195         # you should be able to route on any of these
 196         #
 197
 198         # fix up qra locators of known users
 199         my $user = DXUser->get_current($spot[4]);
 200         if ($user) {
 201                 my $qra = $user->qra;
 202                 unless ($qra && is_qra($qra)) {
 203                         my $lat = $user->lat;
 204                         my $long = $user->long;
 205                         if (defined $lat && defined $long) {
 206                                 $user->qra(DXBearing::lltoqra($lat, $long));
 207                                 $user->put;
 208                         }
 209                 }
 210
 211                 # send a remote command to a distant cluster if it is visible and there is no
 212                 # qra locator and we havn't done it for a month.
 213
 214                 unless ($user->qra) {
 215                         my $node;
 216                         my $to = $user->homenode;
 217                         my $last = $user->lastoper || 0;
 218                         if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
 219                                 my $cmd = "forward/opernam $spot[4]";
 220                                 # send the rcmd but we aren't interested in the replies...
 221                                 my $dxchan = $node->dxchan;
 222                                 if ($dxchan && $dxchan->is_clx) {
 223                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 224                                 } else {
 225                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 226                                 }
 227                                 if ($to ne $_[7]) {
 228                                         $to = $_[7];
 229                                         $node = Route::Node::get($to);
 230                                         if ($node) {
 231                                                 $dxchan = $node->dxchan;
 232                                                 if ($dxchan && $dxchan->is_clx) {
 233                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 234                                                 } else {
 235                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 236                                                 }
 237                                         }
 238                                 }
 239                                 $user->lastoper($main::systime);
 240                                 $user->put;
 241                         }
 242                 }
 243         }
 244
 245         # local processing
 246         my $r;
 247         eval {
 248                 $r = Local::spot($self, @spot);
 249         };
 250         #                       dbg("Local::spot1 error $@") if isdbg('local') if $@;
 251         return if $r;
 252
 253         # DON'T be silly and send on PC26s!
 254         return if $pcno == 26;
 255
 256         # send out the filtered spots
 257         send_dx_spot($self, $line, @spot) if @spot;
 258 }
 259
 260 # announces
 261 package Thingy::PC12;
 262 use vars qw(@ISA);
 263 @ISA = qw(Thingy);
 264
 265 sub handle
 266 {
 267         my $self = shift;
 268         my $dxchan = shift;
 269
 270         #                       return if $rspfcheck and !$self->rspfcheck(1, $_[5], $_[1]);
 271
 272         # announce duplicate checking
 273         $_[3] =~ s/^\s+//;                      # remove leading blanks
 274
 275         if ($censorpc) {
 276                 my @bad;
 277                 if (@bad = BadWords::check($_[3])) {
 278                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 279                         return;
 280                 }
 281         }
 282
 283         # if this is a 'nodx' node then ignore it
 284         if ($badnode->in($_[5])) {
 285                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 286                 return;
 287         }
 288
 289         # if this is a 'bad spotter' user then ignore it
 290         my $nossid = $_[1];
 291         $nossid =~ s/-\d+$//;
 292         if ($badspotter->in($nossid)) {
 293                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 294                 return;
 295         }
 296
 297         if ($_[2] eq '*' || $_[2] eq $main::mycall) {
 298
 299
 300                 # here's a bit of fun, convert incoming ann with a callsign in the first word
 301                 # or one saying 'to <call>' to a talk if we can route to the recipient
 302                 if ($ann_to_talk) {
 303                         my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
 304                         if ($call) {
 305                                 my $ref = Route::get($call);
 306                                 if ($ref) {
 307                                         my $dxchan = $ref->dxchan;
 308                                         $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
 309                                         return;
 310                                 }
 311                         }
 312                 }
 313
 314                 # send it
 315                 $self->send_announce($line, @_[1..6]);
 316         } else {
 317                 $self->route($_[2], $line);
 318         }
 319 }
 320
 321 # incoming user
 322 package Thingy::PC16;
 323 use vars qw(@ISA);
 324 @ISA = qw(Thingy);
 325
 326 sub handle
 327 {
 328         my $self = shift;
 329         my $dxchan = shift;
 330
 331
 332         if (eph_dup($line)) {
 333                 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
 334                 return;
 335         }
 336
 337         # general checks
 338         my $dxchan;
 339         my $ncall = $_[1];
 340         my $newline = "PC16^";
 341
 342         # do I want users from this channel?
 343         unless ($self->user->wantpc16) {
 344                 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
 345                 return;
 346         }
 347         # is it me?
 348         if ($ncall eq $main::mycall) {
 349                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 350                 return;
 351         }
 352         my $parent = Route::Node::get($ncall);
 353
 354         # if there is a parent, proceed, otherwise if there is a latent PC19 in the PC19list,
 355         # fix it up in the routing tables and issue it forth before the PC16
 356         unless ($parent) {
 357                 my $nl = $pc19list{$ncall};
 358
 359                 if ($nl && @_ > 3) { # 3 because of the hop count!
 360
 361                         # this is a new (remembered) node, now attach it to me if it isn't in filtered
 362                         # and we haven't disallowed it
 363                         my $user = DXUser->get_current($ncall);
 364                         if (!$user) {
 365                                 $user = DXUser->new($ncall);
 366                                 $user->sort('A');
 367                                 $user->priv(1); # I have relented and defaulted nodes
 368                                 $user->lockout(1);
 369                                 $user->homenode($ncall);
 370                                 $user->node($ncall);
 371                         }
 372
 373                         my $wantpc19 = $user->wantroutepc19;
 374                         if ($wantpc19 || !defined $wantpc19) {
 375                                 my $new = Route->new($ncall); # throw away
 376                                 if ($self->in_filter_route($new)) {
 377                                         my @nrout;
 378                                         for (@$nl) {
 379                                                 $parent = Route::Node::get($_->[0]);
 380                                                 $dxchan = $parent->dxchan if $parent;
 381                                                 if ($dxchan && $dxchan ne $self) {
 382                                                         dbg("PCPROT: PC19 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 383                                                         $parent = undef;
 384                                                 }
 385                                                 if ($parent) {
 386                                                         my $r = $parent->add($ncall, $_->[1], $_->[2]);
 387                                                         push @nrout, $r unless @nrout;
 388                                                 }
 389                                         }
 390                                         $user->wantroutepc19(1) unless defined $wantpc19; # for now we work on the basis that pc16 = real route
 391                                         $user->lastin($main::systime) unless DXChannel->get($ncall);
 392                                         $user->put;
 393
 394                                         # route the pc19 - this will cause 'stuttering PC19s' for a while
 395                                         $self->route_pc19(@nrout) if @nrout ;
 396                                         $parent = Route::Node::get($ncall);
 397                                         unless ($parent) {
 398                                                 dbg("PCPROT: lost $ncall after sending PC19 for it?");
 399                                                 return;
 400                                         }
 401                                 } else {
 402                                         return;
 403                                 }
 404                                 delete $pc19list{$ncall};
 405                         }
 406                 } else {
 407                         dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
 408                         return;
 409                 }
 410         } else {
 411
 412                 $dxchan = $parent->dxchan;
 413                 if ($dxchan && $dxchan ne $self) {
 414                         dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 415                         return;
 416                 }
 417
 418                 # input filter if required
 419                 return unless $self->in_filter_route($parent);
 420         }
 421
 422         my $i;
 423         my @rout;
 424         for ($i = 2; $i < $#_; $i++) {
 425                 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
 426                 next unless $call && $conf && defined $here && is_callsign($call);
 427                 next if $call eq $main::mycall;
 428
 429                 eph_del_regex("^PC17\\^$call\\^$ncall");
 430
 431                 $conf = $conf eq '*';
 432
 433                 # reject this if we think it is a node already
 434                 my $r = Route::Node::get($call);
 435                 my $u = DXUser->get_current($call) unless $r;
 436                 if ($r || ($u && $u->is_node)) {
 437                         dbg("PCPROT: $call is a node") if isdbg('chanerr');
 438                         next;
 439                 }
 440
 441                 $r = Route::User::get($call);
 442                 my $flags = Route::here($here)|Route::conf($conf);
 443
 444                 if ($r) {
 445                         my $au = $r->addparent($parent);
 446                         if ($r->flags != $flags) {
 447                                 $r->flags($flags);
 448                                 $au = $r;
 449                         }
 450                         push @rout, $r if $au;
 451                 } else {
 452                         push @rout, $parent->add_user($call, $flags);
 453                 }
 454
 455
 456                 # add this station to the user database, if required
 457                 $call =~ s/-\d+$//o;    # remove ssid for users
 458                 my $user = DXUser->get_current($call);
 459                 $user = DXUser->new($call) if !$user;
 460                 $user->homenode($parent->call) if !$user->homenode;
 461                 $user->node($parent->call);
 462                 $user->lastin($main::systime) unless DXChannel->get($call);
 463                 $user->put;
 464         }
 465
 466         $self->route_pc16($parent, @rout) if @rout;
 467 }
 468
 469 # remove a user
 470 package Thingy::PC17;
 471 use vars qw(@ISA);
 472 @ISA = qw(Thingy);
 473
 474 sub handle
 475 {
 476         my $self = shift;
 477         my $dxchan = shift;
 478         my $ncall = $_[2];
 479         my $ucall = $_[1];
 480
 481         eph_del_regex("^PC16\\^$ncall.*$ucall");
 482
 483         # do I want users from this channel?
 484         unless ($self->user->wantpc16) {
 485                 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
 486                 return;
 487         }
 488         if ($ncall eq $main::mycall) {
 489                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 490                 return;
 491         }
 492
 493         my $uref = Route::User::get($ucall);
 494         unless ($uref) {
 495                 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
 496                 return;
 497         }
 498         my $parent = Route::Node::get($ncall);
 499         unless ($parent) {
 500                 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
 501                 return;
 502         }
 503
 504         $dxchan = $parent->dxchan;
 505         if ($dxchan && $dxchan ne $self) {
 506                 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 507                 return;
 508         }
 509
 510         # input filter if required
 511         return unless $self->in_filter_route($parent);
 512
 513         $parent->del_user($uref);
 514
 515         if (eph_dup($line)) {
 516                 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
 517                 return;
 518         }
 519
 520         $self->route_pc17($parent, $uref);
 521 }
 522
 523 # link request
 524 package Thingy::PC18;
 525 use vars qw(@ISA);
 526 @ISA = qw(Thingy);
 527
 528 sub handle
 529 {
 530         my $self = shift;
 531         my $dxchan = shift;
 532         $self->state('init');
 533
 534         # record the type and version offered
 535         if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
 536                 $self->version(53 + $1);
 537                 $self->user->version(53 + $1);
 538                 $self->build(0 + $2);
 539                 $self->user->build(0 + $2);
 540                 unless ($self->is_spider) {
 541                         $self->user->sort('S');
 542                         $self->user->put;
 543                         $self->sort('S');
 544                 }
 545         } else {
 546                 $self->version(50.0);
 547                 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
 548                 $self->user->version($self->version);
 549         }
 550
 551         # first clear out any nodes on this dxchannel
 552         my $parent = Route::Node::get($self->{call});
 553         my @rout = $parent->del_nodes;
 554         $self->route_pc21(@rout, $parent) if @rout;
 555         $self->send_local_config();
 556         $self->send(pc20());
 557 }
 558
 559 # incoming cluster list
 560 package Thingy::PC19;
 561 use vars qw(@ISA);
 562 @ISA = qw(Thingy);
 563
 564 sub handle
 565 {
 566         my $self = shift;
 567         my $dxchan = shift;
 568
 569         my $i;
 570         my $newline = "PC19^";
 571
 572         if (eph_dup($line)) {
 573                 dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
 574                 return;
 575         }
 576
 577         # new routing list
 578         my @rout;
 579         my $parent = Route::Node::get($self->{call});
 580         unless ($parent) {
 581                 dbg("DXPROT: my parent $self->{call} has disappeared");
 582                 $self->disconnect;
 583                 return;
 584         }
 585
 586         # parse the PC19
 587         for ($i = 1; $i < $#_-1; $i += 4) {
 588                 my $here = $_[$i];
 589                 my $call = uc $_[$i+1];
 590                 my $conf = $_[$i+2];
 591                 my $ver = $_[$i+3];
 592                 next unless defined $here && defined $conf && is_callsign($call);
 593
 594                 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
 595
 596                 # check for sane parameters
 597                 #                               $ver = 5000 if $ver eq '0000';
 598                 next if $ver < 5000;    # only works with version 5 software
 599                 next if length $call < 3; # min 3 letter callsigns
 600                 next if $call eq $main::mycall;
 601
 602                 # check that this PC19 isn't trying to alter the wrong dxchan
 603                 my $dxchan = DXChannel->get($call);
 604                 if ($dxchan && $dxchan != $self) {
 605                         dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
 606                         next;
 607                 }
 608
 609                 # add this station to the user database, if required (don't remove SSID from nodes)
 610                 my $user = DXUser->get_current($call);
 611                 if (!$user) {
 612                         $user = DXUser->new($call);
 613                         $user->sort('A');
 614                         $user->priv(1);         # I have relented and defaulted nodes
 615                         $user->lockout(1);
 616                         $user->homenode($call);
 617                         $user->node($call);
 618                 }
 619
 620                 my $r = Route::Node::get($call);
 621                 my $flags = Route::here($here)|Route::conf($conf);
 622
 623                 # modify the routing table if it is in it, otherwise store it in the pc19list for now
 624                 if ($r) {
 625                         my $ar;
 626                         if ($call ne $parent->call) {
 627                                 if ($self->in_filter_route($r)) {
 628                                         $ar = $parent->add($call, $ver, $flags);
 629                                         push @rout, $ar if $ar;
 630                                 } else {
 631                                         next;
 632                                 }
 633                         }
 634                         if ($r->version ne $ver || $r->flags != $flags) {
 635                                 $r->version($ver);
 636                                 $r->flags($flags);
 637                                 push @rout, $r unless $ar;
 638                         }
 639                 } else {
 640
 641                         # if he is directly connected or allowed then add him, otherwise store him up for later
 642                         if ($call eq $self->{call} || $user->wantroutepc19) {
 643                                 my $new = Route->new($call); # throw away
 644                                 if ($self->in_filter_route($new)) {
 645                                         my $ar = $parent->add($call, $ver, $flags);
 646                                         $user->wantroutepc19(1) unless defined $user->wantroutepc19;
 647                                         push @rout, $ar if $ar;
 648                                 } else {
 649                                         next;
 650                                 }
 651                         } else {
 652                                 $pc19list{$call} = [] unless exists $pc19list{$call};
 653                                 my $nl = $pc19list{$call};
 654                                 push @{$pc19list{$call}}, [$self->{call}, $ver, $flags] unless grep $_->[0] eq $self->{call}, @$nl;
 655                         }
 656                 }
 657
 658                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 659                 my $mref = DXMsg::get_busy($call);
 660                 $mref->stop_msg($call) if $mref;
 661
 662                 $user->lastin($main::systime) unless DXChannel->get($call);
 663                 $user->put;
 664         }
 665
 666
 667         $self->route_pc19(@rout) if @rout;
 668 }
 669
 670 # send local configuration
 671 package Thingy::PC20;
 672 use vars qw(@ISA);
 673 @ISA = qw(Thingy);
 674
 675 sub handle
 676 {
 677         my $self = shift;
 678         my $dxchan = shift;
 679         $self->send_local_config();
 680         $self->send(pc22());
 681         $self->state('normal');
 682         $self->{lastping} = 0;
 683 }
 684
 685 # delete a cluster from the list
 686 package Thingy::PC21;
 687 use vars qw(@ISA);
 688 @ISA = qw(Thingy);
 689
 690 sub handle
 691 {
 692         my $self = shift;
 693         my $dxchan = shift;
 694         my $call = uc $_[1];
 695
 696         eph_del_regex("^PC1[679].*$call");
 697
 698         # if I get a PC21 from the same callsign as self then treat it
 699         # as a PC39: I have gone away
 700         if ($call eq $self->call) {
 701                 $self->disconnect(1);
 702                 return;
 703         }
 704
 705         # check to see if we are in the pc19list, if we are then don't bother with any of
 706         # this routing table manipulation, just remove it from the list and dump it
 707         my @rout;
 708         if (my $nl = $pc19list{$call}) {
 709                 $pc19list{$call} = [ grep {$_->[0] ne $self->{call}} @$nl ];
 710                 delete $pc19list{$call} unless @{$pc19list{$call}};
 711         } else {
 712
 713                 my $parent = Route::Node::get($self->{call});
 714                 unless ($parent) {
 715                         dbg("DXPROT: my parent $self->{call} has disappeared");
 716                         $self->disconnect;
 717                         return;
 718                 }
 719                 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 720                         my $node = Route::Node::get($call);
 721                         if ($node) {
 722
 723                                 my $dxchan = DXChannel->get($call);
 724                                 if ($dxchan && $dxchan != $self) {
 725                                         dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
 726                                         return;
 727                                 }
 728
 729                                 # input filter it
 730                                 return unless $self->in_filter_route($node);
 731
 732                                 # routing objects
 733                                 push @rout, $node->del($parent);
 734                         }
 735                 } else {
 736                         dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
 737                         return;
 738                 }
 739         }
 740
 741         $self->route_pc21(@rout) if @rout;
 742 }
 743
 744
 745 package Thingy::PC22;
 746 use vars qw(@ISA);
 747 @ISA = qw(Thingy);
 748
 749 sub handle
 750 {
 751         my $self = shift;
 752         my $dxchan = shift;
 753         $self->state('normal');
 754         $self->{lastping} = 0;
 755 }
 756
 757 # WWV info
 758 package Thingy::PC23;
 759 use vars qw(@ISA);
 760 @ISA = qw(Thingy);
 761
 762 sub handle
 763 {
 764         my $self = shift;
 765         my $dxchan = shift;
 766
 767         # route 'foreign' pc27s
 768         if ($pcno == 27) {
 769                 if ($_[8] ne $main::mycall) {
 770                         $self->route($_[8], $line);
 771                         return;
 772                 }
 773         }
 774
 775         return if $rspfcheck and !$self->rspfcheck(1, $_[8], $_[7]);
 776
 777         # do some de-duping
 778         my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
 779         my $sfi = unpad($_[3]);
 780         my $k = unpad($_[4]);
 781         my $i = unpad($_[5]);
 782         my ($r) = $_[6] =~ /R=(\d+)/;
 783         $r = 0 unless $r;
 784         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
 785                 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
 786                 return;
 787         }
 788         if (Geomag::dup($d,$sfi,$k,$i,$_[6])) {
 789                 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
 790                 return;
 791         }
 792         $_[7] =~ s/-\d+$//o;            # remove spotter's ssid
 793
 794         my $wwv = Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
 795
 796         my $rep;
 797         eval {
 798                 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
 799         };
 800         #                       dbg("Local::wwv2 error $@") if isdbg('local') if $@;
 801         return if $rep;
 802
 803         # DON'T be silly and send on PC27s!
 804         return if $pcno == 27;
 805
 806         # broadcast to the eager world
 807         send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
 808 }
 809
 810 # set here status
 811 package Thingy::PC24;
 812 use vars qw(@ISA);
 813 @ISA = qw(Thingy);
 814
 815 sub handle
 816 {
 817         my $self = shift;
 818         my $dxchan = shift;
 819         my $call = uc $_[1];
 820         my ($nref, $uref);
 821         $nref = Route::Node::get($call);
 822         $uref = Route::User::get($call);
 823         return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
 824
 825         if (eph_dup($line)) {
 826                 dbg("PCPROT: Dup PC24 ignored\n") if isdbg('chanerr');
 827                 return;
 828         }
 829
 830         $nref->here($_[2]) if $nref;
 831         $uref->here($_[2]) if $uref;
 832         my $ref = $nref || $uref;
 833         return unless $self->in_filter_route($ref);
 834
 835         $self->route_pc24($ref, $_[3]);
 836 }
 837
 838 # merge request
 839 package Thingy::PC25;
 840 use vars qw(@ISA);
 841 @ISA = qw(Thingy);
 842
 843 sub handle
 844 {
 845         my $self = shift;
 846         my $dxchan = shift;
 847         if ($_[1] ne $main::mycall) {
 848                 $self->route($_[1], $line);
 849                 return;
 850         }
 851         if ($_[2] eq $main::mycall) {
 852                 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
 853                 return;
 854         }
 855
 856         Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
 857
 858         # spots
 859         if ($_[3] > 0) {
 860                 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
 861                 my $in;
 862                 foreach $in (@in) {
 863                         $self->send_frame($main::me, pc26(@{$in}[0..4], $_[2]));
 864                 }
 865         }
 866
 867         # wwv
 868         if ($_[4] > 0) {
 869                 my @in = reverse Geomag::search(0, $_[4], time, 1);
 870                 my $in;
 871                 foreach $in (@in) {
 872                         $self->send_frame($main::me, pc27(@{$in}[0..5], $_[2]));
 873                 }
 874         }
 875 }
 876
 877 sub handle_26 {goto &handle_11}
 878 sub handle_27 {goto &handle_23}
 879
 880 # mail/file handling
 881 package Thingy::PC28;
 882 use vars qw(@ISA);
 883 @ISA = qw(Thingy);
 884
 885 sub handle
 886 {
 887         my $self = shift;
 888         my $dxchan = shift;
 889         if ($_[1] eq $main::mycall) {
 890                 no strict 'refs';
 891                 my $sub = "DXMsg::handle_$pcno";
 892                 &$sub($self, @_);
 893         } else {
 894                 $self->route($_[1], $line) unless $self->is_clx;
 895         }
 896 }
 897
 898 sub handle_29 {goto &handle_28}
 899 sub handle_30 {goto &handle_28}
 900 sub handle_31 {goto &handle_28}
 901 sub handle_32 {goto &handle_28}
 902 sub handle_33 {goto &handle_28}
 903
 904 package Thingy::PC34;
 905 use vars qw(@ISA);
 906 @ISA = qw(Thingy);
 907
 908 sub handle
 909 {
 910         my $self = shift;
 911         my $dxchan = shift;
 912         if (eph_dup($line, $eph_pc34_restime)) {
 913                 dbg("PCPROT: dupe PC34, ignored") if isdbg('chanerr');
 914         } else {
 915                 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
 916         }
 917 }
 918
 919 # remote command replies
 920 package Thingy::PC35;
 921 use vars qw(@ISA);
 922 @ISA = qw(Thingy);
 923
 924 sub handle
 925 {
 926         my $self = shift;
 927         my $dxchan = shift;
 928         eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
 929         $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
 930 }
 931
 932 sub handle_36 {goto &handle_34}
 933
 934 # database stuff
 935 package Thingy::PC37;
 936 use vars qw(@ISA);
 937 @ISA = qw(Thingy);
 938
 939 sub handle
 940 {
 941         my $self = shift;
 942         my $dxchan = shift;
 943         DXDb::process($self, $line);
 944 }
 945
 946 # node connected list from neighbour
 947 package Thingy::PC38;
 948 use vars qw(@ISA);
 949 @ISA = qw(Thingy);
 950
 951 sub handle
 952 {
 953         my $self = shift;
 954         my $dxchan = shift;
 955 }
 956
 957 # incoming disconnect
 958 package Thingy::PC39;
 959 use vars qw(@ISA);
 960 @ISA = qw(Thingy);
 961
 962 sub handle
 963 {
 964         my $self = shift;
 965         my $dxchan = shift;
 966         if ($_[1] eq $self->{call}) {
 967                 $self->disconnect(1);
 968         } else {
 969                 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
 970         }
 971 }
 972
 973 sub handle_40 {goto &handle_28}
 974
 975 # user info
 976 package Thingy::PC41;
 977 use vars qw(@ISA);
 978 @ISA = qw(Thingy);
 979
 980 sub handle
 981 {
 982         my $self = shift;
 983         my $dxchan = shift;
 984         my $call = $_[1];
 985
 986         my $l = $line;
 987         $l =~ s/[\x00-\x20\x7f-\xff]+//g; # remove all funny characters and spaces for dup checking
 988         if (eph_dup($l, $eph_info_restime)) {
 989                 dbg("PCPROT: dup PC41, ignored") if isdbg('chanerr');
 990                 return;
 991         }
 992
 993         # input filter if required
 994         #                       my $ref = Route::get($call) || Route->new($call);
 995         #                       return unless $self->in_filter_route($ref);
 996
 997         if ($_[3] eq $_[2] || $_[3] =~ /^\s*$/) {
 998                 dbg('PCPROT: invalid value') if isdbg('chanerr');
 999                 return;
1000         }
1001
1002         # add this station to the user database, if required
1003         my $user = DXUser->get_current($call);
1004         $user = DXUser->new($call) unless $user;
1005
1006         if ($_[2] == 1) {
1007                 $user->name($_[3]);
1008         } elsif ($_[2] == 2) {
1009                 $user->qth($_[3]);
1010         } elsif ($_[2] == 3) {
1011                 if (is_latlong($_[3])) {
1012                         my ($lat, $long) = DXBearing::stoll($_[3]);
1013                         $user->lat($lat);
1014                         $user->long($long);
1015                         $user->qra(DXBearing::lltoqra($lat, $long));
1016                 } else {
1017                         dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1018                         return;
1019                 }
1020         } elsif ($_[2] == 4) {
1021                 $user->homenode($_[3]);
1022         } elsif ($_[2] == 5) {
1023                 if (is_qra(uc $_[3])) {
1024                         my ($lat, $long) = DXBearing::qratoll(uc $_[3]);
1025                         $user->lat($lat);
1026                         $user->long($long);
1027                         $user->qra(uc $_[3]);
1028                 } else {
1029                         dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1030                         return;
1031                 }
1032         }
1033         $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1034         $user->put;
1035
1036         unless ($self->{isolate}) {
1037                 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1038         }
1039
1040         #  perhaps this IS what we want after all
1041         #                       $self->route_pc41($ref, $call, $_[2], $_[3], $_[4]);
1042 }
1043
1044 sub handle_42 {goto &handle_28}
1045
1046
1047 # database
1048 sub handle_44 {goto &handle_37}
1049 sub handle_45 {goto &handle_37}
1050 sub handle_46 {goto &handle_37}
1051 sub handle_47 {goto &handle_37}
1052 sub handle_48 {goto &handle_37}
1053
1054 # message and database
1055 package Thingy::PC49;
1056 use vars qw(@ISA);
1057 @ISA = qw(Thingy);
1058
1059 sub handle
1060 {
1061         my $self = shift;
1062         my $dxchan = shift;
1063
1064         if (eph_dup($line)) {
1065                 dbg("PCPROT: Dup PC49 ignored\n") if isdbg('chanerr');
1066                 return;
1067         }
1068
1069         if ($_[1] eq $main::mycall) {
1070                 DXMsg::handle_49($self, @_);
1071         } else {
1072                 $self->route($_[1], $line) unless $self->is_clx;
1073         }
1074 }
1075
1076 # keep alive/user list
1077 package Thingy::PC50;
1078 use vars qw(@ISA);
1079 @ISA = qw(Thingy);
1080
1081 sub handle
1082 {
1083         my $self = shift;
1084         my $dxchan = shift;
1085
1086         my $call = $_[1];
1087         my $node = Route::Node::get($call);
1088         if ($node) {
1089                 return unless $node->call eq $self->{call};
1090                 $node->usercount($_[2]);
1091
1092                 # input filter if required
1093                 return unless $self->in_filter_route($node);
1094
1095                 $self->route_pc50($node, $_[2], $_[3]) unless eph_dup($line);
1096         }
1097 }
1098
1099 # incoming ping requests/answers
1100 package Thingy::PC51;
1101 use vars qw(@ISA);
1102 @ISA = qw(Thingy);
1103
1104 sub handle
1105 {
1106         my $self = shift;
1107         my $dxchan = shift;
1108         my $to = $_[1];
1109         my $from = $_[2];
1110         my $flag = $_[3];
1111
1112
1113         # is it for us?
1114         if ($to eq $main::mycall) {
1115                 if ($flag == 1) {
1116                         $self->send_frame($main::me, pc51($from, $to, '0'));
1117                 } else {
1118                         # it's a reply, look in the ping list for this one
1119                         my $ref = $pings{$from};
1120                         if ($ref) {
1121                                 my $tochan =  DXChannel->get($from);
1122                                 while (@$ref) {
1123                                         my $r = shift @$ref;
1124                                         my $dxchan = DXChannel->get($r->{call});
1125                                         next unless $dxchan;
1126                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
1127                                         if ($dxchan->is_user) {
1128                                                 my $s = sprintf "%.2f", $t;
1129                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
1130                                                 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
1131                                         } elsif ($dxchan->is_node) {
1132                                                 if ($tochan) {
1133                                                         my $nopings = $tochan->user->nopings || 2;
1134                                                         push @{$tochan->{pingtime}}, $t;
1135                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
1136
1137                                                                 # cope with a missed ping, this means you must set the pingint large enough
1138                                                         if ($t > $tochan->{pingint}  && $t < 2 * $tochan->{pingint} ) {
1139                                                                 $t -= $tochan->{pingint};
1140                                                         }
1141
1142                                                                 # calc smoothed RTT a la TCP
1143                                                         if (@{$tochan->{pingtime}} == 1) {
1144                                                                 $tochan->{pingave} = $t;
1145                                                         } else {
1146                                                                 $tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
1147                                                         }
1148                                                         $tochan->{nopings} = $nopings; # pump up the timer
1149                                                 }
1150                                         }
1151                                 }
1152                         }
1153                 }
1154         } else {
1155                 if (eph_dup($line)) {
1156                         dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1157                         return;
1158                 }
1159                 # route down an appropriate thingy
1160                 $self->route($to, $line);
1161         }
1162 }
1163
1164 # dunno but route it
1165 package Thingy::PC75;
1166 use vars qw(@ISA);
1167 @ISA = qw(Thingy);
1168
1169 sub handle
1170 {
1171         my $self = shift;
1172         my $dxchan = shift;
1173         my $call = $_[1];
1174         if ($call ne $main::mycall) {
1175                 $self->route($call, $line);
1176         }
1177 }
1178
1179 # WCY broadcasts
1180 package Thingy::PC73;
1181 use vars qw(@ISA);
1182 @ISA = qw(Thingy);
1183
1184 sub handle
1185 {
1186         my $self = shift;
1187         my $dxchan = shift;
1188         my $call = $_[1];
1189
1190         # do some de-duping
1191         my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1192         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1193                 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1194                 return;
1195         }
1196         @_ = map { unpad($_) } @_;
1197         if (WCY::dup($d)) {
1198                 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1199                 return;
1200         }
1201
1202         my $wcy = WCY::update($d, @_[2..12]);
1203
1204         my $rep;
1205         eval {
1206                 $rep = Local::wcy($self, @_[1..12]);
1207         };
1208         # dbg("Local::wcy error $@") if isdbg('local') if $@;
1209         return if $rep;
1210
1211         # broadcast to the eager world
1212         send_wcy_spot($self, $line, $d, @_[2..12]);
1213 }
1214
1215 # remote commands (incoming)
1216 package Thingy::PC84;
1217 use vars qw(@ISA);
1218 @ISA = qw(Thingy);
1219
1220 sub handle
1221 {
1222         my $self = shift;
1223         my $dxchan = shift;
1224         $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1225 }
1226
1227 # remote command replies
1228 package Thingy::PC85;
1229 use vars qw(@ISA);
1230 @ISA = qw(Thingy);
1231
1232 sub handle
1233 {
1234         my $self = shift;
1235         my $dxchan = shift;
1236         $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1237 }
1238
1239 # if get here then rebroadcast the thing with its Hop count decremented (if
1240 # there is one). If it has a hop count and it decrements to zero then don't
1241 # rebroadcast it.
1242 #
1243 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1244 #        REBROADCAST!!!!
1245 #
1246
1247 package Thingy::PCdefault;
1248 use vars qw(@ISA);
1249 @ISA = qw(Thingy);
1250
1251 sub handle
1252 {
1253         my $self = shift;
1254         my $dxchan = shift;
1255
1256         if (eph_dup($line)) {
1257                 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1258         } else {
1259                 unless ($self->{isolate}) {
1260                         DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1261                 }
1262         }
1263 }
1264
1265 1;