perl/DXMsg.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the message handling for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9 #
  10 # Notes for implementors:-
  11 #
  12 # PC28 field 11 is the RR required flag
  13 # PC28 field 12 is a VIA routing (ie it is a node call)
  14 #
  15
  16 package DXMsg;
  17
  18 use DXUtil;
  19 use DXChannel;
  20 use DXUser;
  21 use DXM;
  22 use DXProtVars;
  23 use DXProtout;
  24 use DXDebug;
  25 use DXLog;
  26 use IO::File;
  27 use Fcntl;
  28
  29 use strict;
  30
  31 use vars qw($VERSION $BRANCH);
  32 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
  33 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ ) || 0;
  34 $main::build += $VERSION;
  35 $main::branch += $BRANCH;
  36
  37 use vars qw(%work @msg $msgdir %valid %busy $maxage $last_clean
  38                         @badmsg @swop $swopfn $badmsgfn $forwardfn @forward $timeout $waittime
  39                     $queueinterval $lastq $importfn $minchunk $maxchunk $bulltopriv);
  40
  41 %work = ();                                             # outstanding jobs
  42 @msg = ();                                              # messages we have
  43 %busy = ();                                             # station interlocks
  44 $msgdir = "$main::root/msg";    # directory contain the msgs
  45 $maxage = 30 * 86400;                   # the maximum age that a message shall live for if not marked
  46 $last_clean = 0;                                # last time we did a clean
  47 @forward = ();                  # msg forward table
  48 @badmsg = ();                                   # bad message table
  49 @swop = ();                                             # swop table
  50 $timeout = 30*60;               # forwarding timeout
  51 $waittime = 30*60;              # time an aborted outgoing message waits before trying again
  52 $queueinterval = 1*60;          # run the queue every 1 minute
  53 $lastq = 0;
  54
  55 $minchunk = 4800;               # minimum chunk size for a split message
  56 $maxchunk = 6000;               # maximum chunk size
  57 $bulltopriv = 1;                                # convert msgs with callsigns to private if they are bulls
  58
  59
  60 $badmsgfn = "$msgdir/badmsg.pl";    # list of TO address we wont store
  61 $forwardfn = "$msgdir/forward.pl";  # the forwarding table
  62 $swopfn = "$msgdir/swop.pl";        # the swopping table
  63 $importfn = "$msgdir/import";       # import directory
  64
  65
  66 %valid = (
  67                   fromnode => '5,From Node',
  68                   tonode => '5,To Node',
  69                   to => '0,To',
  70                   from => '0,From',
  71                   t => '0,Msg Time,cldatetime',
  72                   private => '5,Private,yesno',
  73                   subject => '0,Subject',
  74                   linesreq => '0,Lines per Gob',
  75                   rrreq => '5,Read Confirm,yesno',
  76                   origin => '0,Origin',
  77                   lines => '5,Data',
  78                   stream => '9,Stream No',
  79                   count => '5,Gob Linecnt',
  80                   file => '5,File?,yesno',
  81                   gotit => '5,Got it Nodes,parray',
  82                   lines => '5,Lines,parray',
  83                   'read' => '5,Times read',
  84                   size => '0,Size',
  85                   msgno => '0,Msgno',
  86                   keep => '0,Keep this?,yesno',
  87                   lastt => '5,Last processed,cldatetime',
  88                   waitt => '5,Wait until,cldatetime',
  89                   delete => '5,Awaiting Delete,yesno',
  90                  );
  91
  92 # allocate a new object
  93 # called fromnode, tonode, from, to, datetime, private?, subject, nolinesper
  94 sub alloc
  95 {
  96         my $pkg = shift;
  97         my $self = bless {}, $pkg;
  98         $self->{msgno} = shift;
  99         my $to = shift;
 100         #  $to =~ s/-\d+$//o;
 101         $self->{to} = ($to eq $main::mycall) ? $main::myalias : $to;
 102         my $from = shift;
 103         $from =~ s/-\d+$//o;
 104         $self->{from} = uc $from;
 105         $self->{t} = shift;
 106         $self->{private} = shift;
 107         $self->{subject} = shift;
 108         $self->{origin} = shift;
 109         $self->{'read'} = shift;
 110         $self->{rrreq} = shift;
 111         $self->{gotit} = [];
 112 #       $self->{lastt} = $main::systime;
 113         $self->{lines} = [];
 114         $self->{private} = 1 if $bulltopriv && DXUser->get_current($self->{to});
 115
 116         return $self;
 117 }
 118
 119
 120 sub process
 121 {
 122         my ($self, $line) = @_;
 123
 124         # this is periodic processing
 125         if (!$self || !$line) {
 126
 127                 if ($main::systime >= $lastq + $queueinterval) {
 128
 129                         # queue some message if the interval timer has gone off
 130                         queue_msg(0);
 131
 132                         # import any messages in the import directory
 133                         import_msgs();
 134
 135                         $lastq = $main::systime;
 136                 }
 137
 138                 # clean the message queue
 139                 clean_old() if $main::systime - $last_clean > 3600 ;
 140                 return;
 141         }
 142
 143         my @f = split /\^/, $line;
 144         my ($pcno) = $f[0] =~ /^PC(\d\d)/; # just get the number
 145         my ($tonode, $fromnode) = @f[1, 2];
 146         my $stream = $f[3] if $pcno > 29 && $pcno <= 33;
 147
 148  SWITCH: {
 149                 if ($pcno == 28) {              # incoming message
 150
 151                         # sort out various extant protocol errors that occur
 152                         my $origin = $f[13];
 153                         $origin = $self->call unless $origin && $origin gt ' ';
 154
 155                         # first look for any messages in the busy queue
 156                         # and cancel them this should both resolve timed out incoming messages
 157                         # and crossing of message between nodes, incoming messages have priority
 158
 159                         my $ref = get_busy($fromnode);
 160                         if ($ref) {
 161                                 my $otonode = $ref->{tonode} || "unknown";
 162                                 dbg("Busy, stopping msgno: $ref->{msgno} $fromnode->$otonode") if isdbg('msg');
 163                                 $ref->stop_msg($fromnode);
 164                         }
 165
 166                         my $t = cltounix($f[5], $f[6]);
 167                         $stream = next_transno($fromnode);
 168                         $ref = DXMsg->alloc($stream, uc $f[3], $f[4], $t, $f[7], $f[8], $origin, '0', $f[11]);
 169
 170                         # fill in various forwarding state variables
 171                         $ref->{fromnode} = $fromnode;
 172                         $ref->{tonode} = $tonode;
 173                         $ref->{rrreq} = $f[11];
 174                         $ref->{linesreq} = $f[10];
 175                         $ref->{stream} = $stream;
 176                         $ref->{count} = 0;      # no of lines between PC31s
 177                         dbg("new message from $f[4] to $f[3] '$f[8]' stream $fromnode/$stream\n") if isdbg('msg');
 178                         Log('msg', "Incoming message $f[4] to $f[3] '$f[8]' origin: $origin" );
 179                         set_fwq($fromnode, $stream, $ref); # store in work
 180                         set_busy($fromnode, $ref); # set interlock
 181                         $self->send(DXProt::pc30($fromnode, $tonode, $stream)); # send ack
 182                         $ref->{lastt} = $main::systime;
 183
 184                         # look to see whether this is a non private message sent to a known callsign
 185                         my $uref = DXUser->get_current($ref->{to});
 186                         if (is_callsign($ref->{to}) && !$ref->{private} && $uref && $uref->homenode) {
 187                                 $ref->{private} = 1;
 188                                 dbg("set bull to $ref->{to} to private") if isdbg('msg');
 189                                 Log('msg', "set bull to $ref->{to} to private");
 190                         }
 191                         last SWITCH;
 192                 }
 193
 194                 if ($pcno == 29) {              # incoming text
 195                         my $ref = get_fwq($fromnode, $stream);
 196                         if ($ref) {
 197                                 $f[4] =~ s/\%5E/^/g;
 198                                 push @{$ref->{lines}}, $f[4];
 199                                 $ref->{count}++;
 200                                 if ($ref->{count} >= $ref->{linesreq}) {
 201                                         $self->send(DXProt::pc31($fromnode, $tonode, $stream));
 202                                         dbg("stream $stream: $ref->{count} lines received\n") if isdbg('msg');
 203                                         $ref->{count} = 0;
 204                                 }
 205                                 $ref->{lastt} = $main::systime;
 206                         } else {
 207                                 dbg("PC29 from unknown stream $stream from $fromnode") if isdbg('msg');
 208                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 209                         }
 210                         last SWITCH;
 211                 }
 212
 213                 if ($pcno == 30) {              # this is a incoming subject ack
 214                         my $ref = get_fwq($fromnode);   # note no stream at this stage
 215                         if ($ref) {
 216                                 del_fwq($fromnode);
 217                                 $ref->{stream} = $stream;
 218                                 $ref->{count} = 0;
 219                                 $ref->{linesreq} = 5;
 220                                 set_fwq($fromnode, $stream, $ref);      # new ref
 221                                 set_busy($fromnode, $ref); # interlock
 222                                 dbg("incoming subject ack stream $stream\n") if isdbg('msg');
 223                                 $ref->{lines} = [ $ref->read_msg_body ];
 224                                 $ref->send_tranche($self);
 225                                 $ref->{lastt} = $main::systime;
 226                         } else {
 227                                 dbg("PC30 from unknown stream $stream from $fromnode") if isdbg('msg');
 228                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 229                         }
 230                         last SWITCH;
 231                 }
 232
 233                 if ($pcno == 31) {              # acknowledge a tranche of lines
 234                         my $ref = get_fwq($fromnode, $stream);
 235                         if ($ref) {
 236                                 dbg("tranche ack stream $stream\n") if isdbg('msg');
 237                                 $ref->send_tranche($self);
 238                                 $ref->{lastt} = $main::systime;
 239                         } else {
 240                                 dbg("PC31 from unknown stream $stream from $fromnode") if isdbg('msg');
 241                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 242                         }
 243                         last SWITCH;
 244                 }
 245
 246                 if ($pcno == 32) {              # incoming EOM
 247                         dbg("stream $stream: EOM received\n") if isdbg('msg');
 248                         my $ref = get_fwq($fromnode, $stream);
 249                         if ($ref) {
 250                                 $self->send(DXProt::pc33($fromnode, $tonode, $stream)); # acknowledge it
 251
 252                                 # get the next msg no - note that this has NOTHING to do with the stream number in PC protocol
 253                                 # store the file or message
 254                                 # remove extraneous rubbish from the hash
 255                                 # remove it from the work in progress vector
 256                                 # stuff it on the msg queue
 257                                 if ($ref->{lines}) {
 258                                         if ($ref->{file}) {
 259                                                 $ref->store($ref->{lines});
 260                                         } else {
 261
 262                                                 # does an identical message already exist?
 263                                                 my $m;
 264                                                 for $m (@msg) {
 265                                                         if ($ref->{subject} eq $m->{subject} && $ref->{t} == $m->{t} && $ref->{from} eq $m->{from} && $ref->{to} eq $m->{to}) {
 266                                                                 $ref->stop_msg($fromnode);
 267                                                                 my $msgno = $m->{msgno};
 268                                                                 dbg("duplicate message from $ref->{from} -> $ref->{to} to msg: $msgno") if isdbg('msg');
 269                                                                 Log('msg', "duplicate message from $ref->{from} -> $ref->{to} to msg: $msgno");
 270                                                                 return;
 271                                                         }
 272                                                 }
 273
 274                                                 # swop addresses
 275                                                 $ref->swop_it($self->call);
 276
 277                                                 # look for 'bad' to addresses
 278                                                 if ($ref->dump_it($self->call)) {
 279                                                         $ref->stop_msg($fromnode);
 280                                                         dbg("'Bad' message $ref->{to}") if isdbg('msg');
 281                                                         Log('msg', "'Bad' message $ref->{to}");
 282                                                         return;
 283                                                 }
 284
 285                                                 # check the message for bad words
 286                                                 my @words;
 287                                                 for (@{$ref->{lines}}) {
 288                                                         push @words, BadWords::check($_);
 289                                                 }
 290                                                 push @words, BadWords::check($ref->{subject});
 291                                                 if (@words) {
 292                                                         dbg("message with badwords '@words' $ref->{from} -> $ref->{to} '$ref->{subject}' origin: $ref->{origin} via " . $self->call) if isdbg('msg');
 293                                                         Log('msg',"message with badwords '@words' $ref->{from} -> $ref->{to} origin: $ref->{origin} via " . $self->call);
 294                                                         Log('msg',"subject: $ref->{subject}");
 295                                                         for (@{$ref->{lines}}) {
 296                                                                 Log('msg', "line: $_");
 297                                                         }
 298                                                         $ref->stop_msg($fromnode);
 299                                                         return;
 300                                                 }
 301
 302                                                 $ref->{msgno} = next_transno("Msgno");
 303                                                 push @{$ref->{gotit}}, $fromnode; # mark this up as being received
 304                                                 $ref->store($ref->{lines});
 305                                                 add_dir($ref);
 306                                                 my $dxchan = DXChannel->get($ref->{to});
 307                                                 $dxchan->send($dxchan->msg('m9')) if $dxchan && $dxchan->is_user;
 308                                                 Log('msg', "Message $ref->{msgno} from $ref->{from} received from $fromnode for $ref->{to}");
 309                                         }
 310                                 }
 311                                 $ref->stop_msg($fromnode);
 312                         } else {
 313                                 dbg("PC32 from unknown stream $stream from $fromnode") if isdbg('msg');
 314                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 315                         }
 316                         # queue_msg(0);
 317                         last SWITCH;
 318                 }
 319
 320                 if ($pcno == 33) {              # acknowledge the end of message
 321                         my $ref = get_fwq($fromnode, $stream);
 322                         if ($ref) {
 323                                 if ($ref->{private}) { # remove it if it private and gone off site#
 324                                         Log('msg', "Message $ref->{msgno} from $ref->{from} sent to $fromnode and deleted");
 325                                         $ref->{delete}++;
 326                                 } else {
 327                                         Log('msg', "Message $ref->{msgno} from $ref->{from} sent to $fromnode");
 328                                         push @{$ref->{gotit}}, $fromnode; # mark this up as being received
 329                                         $ref->store($ref->{lines});     # re- store the file
 330                                 }
 331                                 $ref->stop_msg($fromnode);
 332                         } else {
 333                                 dbg("PC33 from unknown stream $stream from $fromnode") if isdbg('msg');
 334                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 335                         }
 336
 337                         # send next one if present
 338                         queue_msg(0);
 339                         last SWITCH;
 340                 }
 341
 342                 if ($pcno == 40) {              # this is a file request
 343                         $f[3] =~ s/\\/\//og; # change the slashes
 344                         $f[3] =~ s/\.//og;      # remove dots
 345                         $f[3] =~ s/^\///o;   # remove the leading /
 346                         $f[3] = lc $f[3];       # to lower case;
 347                         dbg("incoming file $f[3]\n") if isdbg('msg');
 348                         $f[3] = 'packclus/' . $f[3] unless $f[3] =~ /^packclus\//o;
 349
 350                         # create any directories
 351                         my @part = split /\//, $f[3];
 352                         my $part;
 353                         my $fn = "$main::root";
 354                         pop @part;                      # remove last part
 355                         foreach $part (@part) {
 356                                 $fn .= "/$part";
 357                                 next if -e $fn;
 358                                 last SWITCH if !mkdir $fn, 0777;
 359                                 dbg("created directory $fn\n") if isdbg('msg');
 360                         }
 361                         my $stream = next_transno($fromnode);
 362                         my $ref = DXMsg->alloc($stream, "$main::root/$f[3]", $self->call, time, !$f[4], $f[3], ' ', '0', '0');
 363
 364                         # forwarding variables
 365                         $ref->{fromnode} = $tonode;
 366                         $ref->{tonode} = $fromnode;
 367                         $ref->{linesreq} = $f[5];
 368                         $ref->{stream} = $stream;
 369                         $ref->{count} = 0;      # no of lines between PC31s
 370                         $ref->{file} = 1;
 371                         $ref->{lastt} = $main::systime;
 372                         set_fwq($fromnode, $stream, $ref); # store in work
 373                         $self->send(DXProt::pc30($fromnode, $tonode, $stream)); # send ack
 374
 375                         last SWITCH;
 376                 }
 377
 378                 if ($pcno == 42) {              # abort transfer
 379                         dbg("stream $stream: abort received\n") if isdbg('msg');
 380                         my $ref = get_fwq($fromnode, $stream);
 381                         if ($ref) {
 382                                 $ref->stop_msg($fromnode);
 383                                 $ref = undef;
 384                         }
 385                         last SWITCH;
 386                 }
 387
 388                 if ($pcno == 49) {      # global delete on subject
 389                         for (@msg) {
 390                                 if ($_->{from} eq $f[1] && $_->{subject} eq $f[2]) {
 391                                         $_->{delete}++;
 392                                         Log('msg', "Message $_->{msgno} from $_->{from} ($_->{subject}) fully deleted");
 393                                         DXChannel::broadcast_nodes($line, $self);
 394                                 }
 395                         }
 396                 }
 397         }
 398 }
 399
 400
 401 # store a message away on disc or whatever
 402 #
 403 # NOTE the second arg is a REFERENCE not a list
 404 sub store
 405 {
 406         my $ref = shift;
 407         my $lines = shift;
 408
 409         if ($ref->{file}) {                     # a file
 410                 dbg("To be stored in $ref->{to}\n") if isdbg('msg');
 411
 412                 my $fh = new IO::File "$ref->{to}", "w";
 413                 if (defined $fh) {
 414                         my $line;
 415                         foreach $line (@{$lines}) {
 416                                 print $fh "$line\n";
 417                         }
 418                         $fh->close;
 419                         dbg("file $ref->{to} stored\n") if isdbg('msg');
 420                         Log('msg', "file $ref->{to} from $ref->{from} stored" );
 421                 } else {
 422                         confess "can't open file $ref->{to} $!";
 423                 }
 424         } else {                                        # a normal message
 425
 426                 # attempt to open the message file
 427                 my $fn = filename($ref->{msgno});
 428
 429                 dbg("To be stored in $fn\n") if isdbg('msg');
 430
 431                 # now save the file, overwriting what's there, YES I KNOW OK! (I will change it if it's a problem)
 432                 my $fh = new IO::File "$fn", "w";
 433                 if (defined $fh) {
 434                         my $rr = $ref->{rrreq} ? '1' : '0';
 435                         my $priv = $ref->{private} ? '1': '0';
 436                         print $fh "=== $ref->{msgno}^$ref->{to}^$ref->{from}^$ref->{t}^$priv^$ref->{subject}^$ref->{origin}^$ref->{'read'}^$rr\n";
 437                         print $fh "=== ", join('^', @{$ref->{gotit}}), "\n";
 438                         my $line;
 439                         $ref->{size} = 0;
 440                         foreach $line (@{$lines}) {
 441                                 $ref->{size} += (length $line) + 1;
 442                                 print $fh "$line\n";
 443                         }
 444                         $fh->close;
 445                         dbg("msg $ref->{msgno} stored\n") if isdbg('msg');
 446                         Log('msg', "msg $ref->{msgno} from $ref->{from} to $ref->{to} stored" );
 447                 } else {
 448                         confess "can't open msg file $fn $!";
 449                 }
 450         }
 451 }
 452
 453 # delete a message
 454 sub del_msg
 455 {
 456         my $self = shift;
 457         my $dxchan = shift;
 458
 459         if ($self->{tonode}) {
 460                 $self->{delete}++;
 461         } else {
 462                 my $call;
 463                 if ($dxchan) {
 464                         $call = " by " . $dxchan->call;
 465                 } else {
 466                         $call = '';
 467                 }
 468
 469                 # remove it from the active message list
 470                 @msg = grep { $_ != $self } @msg;
 471
 472                 # remove the file
 473                 unlink filename($self->{msgno});
 474         }
 475 }
 476
 477 # clean out old messages from the message queue
 478 sub clean_old
 479 {
 480         my $ref;
 481
 482         # mark old messages for deletion
 483         dbg("\@msg = " . scalar @msg . " before delete") if isdbg('msg');
 484         foreach $ref (@msg) {
 485                 if (ref($ref) && !$ref->{keep} && $ref->{t} < $main::systime - $maxage) {
 486                         $ref->{deleteme} = 1;
 487                         unlink filename($ref->{msgno});
 488                         dbg("deleting old $ref->{msgno}\n") if isdbg('msg');
 489                 }
 490         }
 491
 492         # remove them all from the active message list
 493         @msg = grep { !$_->{deleteme} } @msg;
 494         dbg("\@msg = " . scalar @msg . " after delete") if isdbg('msg');
 495         $last_clean = $main::systime;
 496 }
 497
 498 # read in a message header
 499 sub read_msg_header
 500 {
 501         my $fn = shift;
 502         my $file;
 503         my $line;
 504         my $ref;
 505         my @f;
 506         my $size;
 507
 508         $file = new IO::File "$fn";
 509         if (!$file) {
 510             dbg("Error reading $fn $!");
 511             Log('err', "Error reading $fn $!");
 512                 return undef;
 513         }
 514         $size = -s $fn;
 515         $line = <$file>;                        # first line
 516         if ($size == 0 || !$line) {
 517             dbg("Empty $fn $!");
 518             Log('err', "Empty $fn $!");
 519                 return undef;
 520         }
 521         chomp $line;
 522         $size -= length $line;
 523         if (! $line =~ /^===/o) {
 524                 dbg("corrupt first line in $fn ($line)");
 525                 Log('err', "corrupt first line in $fn ($line)");
 526                 return undef;
 527         }
 528         $line =~ s/^=== //o;
 529         @f = split /\^/, $line;
 530         $ref = DXMsg->alloc(@f);
 531
 532         $line = <$file>;                        # second line
 533         chomp $line;
 534         $size -= length $line;
 535         if (! $line =~ /^===/o) {
 536             dbg("corrupt second line in $fn ($line)");
 537             Log('err', "corrupt second line in $fn ($line)");
 538                 return undef;
 539         }
 540         $line =~ s/^=== //o;
 541         $ref->{gotit} = [];
 542         @f = split /\^/, $line;
 543         push @{$ref->{gotit}}, @f;
 544         $ref->{size} = $size;
 545
 546         close($file);
 547
 548         return $ref;
 549 }
 550
 551 # read in a message header
 552 sub read_msg_body
 553 {
 554         my $self = shift;
 555         my $msgno = $self->{msgno};
 556         my $file;
 557         my $line;
 558         my $fn = filename($msgno);
 559         my @out;
 560
 561         $file = new IO::File;
 562         if (!open($file, $fn)) {
 563                 dbg("Error reading $fn $!");
 564                 Log('err' ,"Error reading $fn $!");
 565                 return ();
 566         }
 567         @out = map {chomp; $_} <$file>;
 568         close($file);
 569
 570         shift @out if $out[0] =~ /^=== /;
 571         shift @out if $out[0] =~ /^=== /;
 572         return @out;
 573 }
 574
 575 # send a tranche of lines to the other end
 576 sub send_tranche
 577 {
 578         my ($self, $dxchan) = @_;
 579         my @out;
 580         my $to = $self->{tonode};
 581         my $from = $self->{fromnode};
 582         my $stream = $self->{stream};
 583         my $lines = $self->{lines};
 584         my ($c, $i);
 585
 586         for ($i = 0, $c = $self->{count}; $i < $self->{linesreq} && $c < @$lines; $i++, $c++) {
 587                 push @out, DXProt::pc29($to, $from, $stream, $lines->[$c]);
 588     }
 589     $self->{count} = $c;
 590
 591     push @out, DXProt::pc32($to, $from, $stream) if $i < $self->{linesreq};
 592         $dxchan->send(@out);
 593 }
 594
 595
 596 # find a message to send out and start the ball rolling
 597 sub queue_msg
 598 {
 599         my $sort = shift;
 600         my $ref;
 601         my $clref;
 602
 603         # bat down the message list looking for one that needs to go off site and whose
 604         # nearest node is not busy.
 605
 606         dbg("queue msg ($sort)\n") if isdbg('msg');
 607         my @nodelist = DXChannel::get_all_nodes;
 608         foreach $ref (@msg) {
 609
 610                 # ignore 'delayed' messages until their waiting time has expired
 611                 if (exists $ref->{waitt}) {
 612                         next if $ref->{waitt} > $main::systime;
 613                         delete $ref->{waitt};
 614                 }
 615
 616                 # any time outs?
 617                 if (exists $ref->{lastt} && $main::systime >= $ref->{lastt} + $timeout) {
 618                         my $node = $ref->{tonode};
 619                         dbg("Timeout, stopping msgno: $ref->{msgno} -> $node") if isdbg('msg');
 620                         Log('msg', "Timeout, stopping msgno: $ref->{msgno} -> $node");
 621                         $ref->stop_msg($node);
 622
 623                         # delay any outgoing messages that fail
 624                         $ref->{waitt} = $main::systime + $waittime + rand(120) if $node ne $main::mycall;
 625                         delete $ref->{lastt};
 626                         next;
 627                 }
 628
 629                 # is it being sent anywhere currently?
 630                 next if $ref->{tonode};           # ignore it if it already being processed
 631
 632                 # is it awaiting deletion?
 633                 if ($ref->{delete}) {
 634                         $ref->del_msg;
 635                         next;
 636                 }
 637
 638                 # firstly, is it private and unread? if so can I find the recipient
 639                 # in my cluster node list offsite?
 640
 641                 # deal with routed private messages
 642                 my $dxchan;
 643                 if ($ref->{private}) {
 644                         next if $ref->{'read'};           # if it is read, it is stuck here
 645                         $clref = Route::get($ref->{to});
 646                         if ($clref) {
 647                                 $dxchan = $clref->dxchan;
 648                                 if ($dxchan) {
 649                                         if ($dxchan->is_node) {
 650                                                 next if $clref->call eq $main::mycall;  # i.e. it lives here
 651                                                 $ref->start_msg($dxchan) if !get_busy($dxchan->call)  && $dxchan->state eq 'normal';
 652                                         }
 653                                 } else {
 654                                         dbg("Route: No dxchan for $ref->{to} " . ref($clref) ) if isdbg('msg');
 655                                 }
 656                         }
 657                 } else {
 658
 659                         # otherwise we are dealing with a bulletin or forwarded private message
 660                         # compare the gotit list with
 661                         # the nodelist up above, if there are sites that haven't got it yet
 662                         # then start sending it - what happens when we get loops is anyone's
 663                         # guess, use (to, from, time, subject) tuple?
 664                         foreach $dxchan (@nodelist) {
 665                                 my $call = $dxchan->call;
 666                                 next unless $call;
 667                                 next if $call eq $main::mycall;
 668                                 next if ref $ref->{gotit} && grep $_ eq $call, @{$ref->{gotit}};
 669                                 next unless $ref->forward_it($call);           # check the forwarding file
 670                                 next if $ref->{tonode};           # ignore it if it already being processed
 671
 672                                 # if we are here we have a node that doesn't have this message
 673                                 if (!get_busy($call)  && $dxchan->state eq 'normal') {
 674                                         $ref->start_msg($dxchan);
 675                                         last;
 676                                 }
 677                         }
 678                 }
 679
 680                 # if all the available nodes are busy then stop
 681                 last if @nodelist == scalar grep { get_busy($_->call) } @nodelist;
 682         }
 683 }
 684
 685 # is there a message for me?
 686 sub for_me
 687 {
 688         my $call = uc shift;
 689         my $ref;
 690
 691         foreach $ref (@msg) {
 692                 # is it for me, private and unread?
 693                 if ($ref->{to} eq $call && $ref->{private}) {
 694                         return 1 if !$ref->{'read'};
 695                 }
 696         }
 697         return 0;
 698 }
 699
 700 # start the message off on its travels with a PC28
 701 sub start_msg
 702 {
 703         my ($self, $dxchan) = @_;
 704
 705         confess("trying to start started msg $self->{msgno} nodes: $self->{fromnode} -> $self->{tonode}") if $self->{tonode};
 706         dbg("start msg $self->{msgno}\n") if isdbg('msg');
 707         $self->{linesreq} = 10;
 708         $self->{count} = 0;
 709         $self->{tonode} = $dxchan->call;
 710         $self->{fromnode} = $main::mycall;
 711         set_busy($self->{tonode}, $self);
 712         set_fwq($self->{tonode}, undef, $self);
 713         $self->{lastt} = $main::systime;
 714         my ($fromnode, $origin);
 715         $fromnode = $self->{fromnode};
 716         $origin = $self->{origin};
 717         $dxchan->send(DXProt::pc28($self->{tonode}, $fromnode, $self->{to}, $self->{from}, $self->{t}, $self->{private}, $self->{subject}, $origin, $self->{rrreq}));
 718 }
 719
 720 # get the ref of a busy node
 721 sub get_busy
 722 {
 723         my $call = shift;
 724         return $busy{$call};
 725 }
 726
 727 sub set_busy
 728 {
 729         my $call = shift;
 730         return $busy{$call} = shift;
 731 }
 732
 733 sub del_busy
 734 {
 735         my $call = shift;
 736         return delete $busy{$call};
 737 }
 738
 739 # get the whole busy queue
 740 sub get_all_busy
 741 {
 742         return keys %busy;
 743 }
 744
 745 # get a forwarding queue entry
 746 sub get_fwq
 747 {
 748         my $call = shift;
 749         my $stream = shift || '0';
 750         return $work{"$call,$stream"};
 751 }
 752
 753 # delete a forwarding queue entry
 754 sub del_fwq
 755 {
 756         my $call = shift;
 757         my $stream = shift || '0';
 758         return delete $work{"$call,$stream"};
 759 }
 760
 761 # set a fwq entry
 762 sub set_fwq
 763 {
 764         my $call = shift;
 765         my $stream = shift || '0';
 766         return $work{"$call,$stream"} = shift;
 767 }
 768
 769 # get the whole forwarding queue
 770 sub get_all_fwq
 771 {
 772         return keys %work;
 773 }
 774
 775 # stop a message from continuing, clean it out, unlock interlocks etc
 776 sub stop_msg
 777 {
 778         my $self = shift;
 779         my $node = shift;
 780         my $stream = $self->{stream};
 781
 782
 783         dbg("stop msg $self->{msgno} -> node $node\n") if isdbg('msg');
 784         del_fwq($node, $stream);
 785         $self->workclean;
 786         del_busy($node);
 787 }
 788
 789 sub workclean
 790 {
 791         my $ref = shift;
 792         delete $ref->{lines};
 793         delete $ref->{linesreq};
 794         delete $ref->{tonode};
 795         delete $ref->{fromnode};
 796         delete $ref->{stream};
 797         delete $ref->{file};
 798         delete $ref->{count};
 799         delete $ref->{lastt} if exists $ref->{lastt};
 800         delete $ref->{waitt} if exists $ref->{waitt};
 801 }
 802
 803 # get a new transaction number from the file specified
 804 sub next_transno
 805 {
 806         my $name = shift;
 807         $name =~ s/\W//og;                      # remove non-word characters
 808         my $fn = "$msgdir/$name";
 809         my $msgno;
 810
 811         my $fh = new IO::File;
 812         if (sysopen($fh, $fn, O_RDWR|O_CREAT, 0666)) {
 813                 $fh->autoflush(1);
 814                 $msgno = $fh->getline || '0';
 815                 chomp $msgno;
 816                 $msgno++;
 817                 seek $fh, 0, 0;
 818                 $fh->print("$msgno\n");
 819                 dbg("msgno $msgno allocated for $name\n") if isdbg('msg');
 820                 $fh->close;
 821         } else {
 822                 confess "can't open $fn $!";
 823         }
 824         return $msgno;
 825 }
 826
 827 # initialise the message 'system', read in all the message headers
 828 sub init
 829 {
 830         my $dir = new IO::File;
 831         my @dir;
 832         my $ref;
 833
 834         # load various control files
 835         dbg("load badmsg: " . (load_badmsg() or "Ok"));
 836         dbg("load forward: " . (load_forward() or "Ok"));
 837         dbg("load swop: " . (load_swop() or "Ok"));
 838
 839         # read in the directory
 840         opendir($dir, $msgdir) or confess "can't open $msgdir $!";
 841         @dir = readdir($dir);
 842         closedir($dir);
 843
 844         @msg = ();
 845         for (sort @dir) {
 846                 next unless /^m\d\d\d\d\d\d$/;
 847
 848                 $ref = read_msg_header("$msgdir/$_");
 849                 unless ($ref) {
 850                         dbg("Deleting $_");
 851                         Log('err', "Deleting $_");
 852                         unlink "$msgdir/$_";
 853                         next;
 854                 }
 855
 856                 # delete any messages to 'badmsg.pl' places
 857                 if ($ref->dump_it('')) {
 858                         dbg("'Bad' TO address $ref->{to}") if isdbg('msg');
 859                         Log('msg', "'Bad' TO address $ref->{to}");
 860                         $ref->del_msg;
 861                         next;
 862                 }
 863
 864                 # add the message to the available queue
 865                 add_dir($ref);
 866         }
 867 }
 868
 869 # add the message to the directory listing
 870 sub add_dir
 871 {
 872         my $ref = shift;
 873         confess "tried to add a non-ref to the msg directory" if !ref $ref;
 874         push @msg, $ref;
 875 }
 876
 877 # return all the current messages
 878 sub get_all
 879 {
 880         return @msg;
 881 }
 882
 883 # get a particular message
 884 sub get
 885 {
 886         my $msgno = shift;
 887         for (@msg) {
 888                 return $_ if $_->{msgno} == $msgno;
 889                 last if $_->{msgno} > $msgno;
 890         }
 891         return undef;
 892 }
 893
 894 # return the official filename for a message no
 895 sub filename
 896 {
 897         return sprintf "$msgdir/m%06d", shift;
 898 }
 899
 900 #
 901 # return a list of valid elements
 902 #
 903
 904 sub fields
 905 {
 906         return keys(%valid);
 907 }
 908
 909 #
 910 # return a prompt for a field
 911 #
 912
 913 sub field_prompt
 914 {
 915         my ($self, $ele) = @_;
 916         return $valid{$ele};
 917 }
 918
 919 #
 920 # send a message state machine
 921 sub do_send_stuff
 922 {
 923         my $self = shift;
 924         my $line = shift;
 925         my @out;
 926
 927         if ($self->state eq 'send1') {
 928                 #  $DB::single = 1;
 929                 confess "local var gone missing" if !ref $self->{loc};
 930                 my $loc = $self->{loc};
 931                 if (my @ans = BadWords::check($line)) {
 932                         $self->{badcount} += @ans;
 933                         Log('msg', $self->call . " used badwords: @ans to @{$loc->{to}} in msg");
 934                         return ($self->msg('e17', @ans), $self->msg('m1'));
 935                 }
 936                 $loc->{subject} = $line;
 937                 $loc->{lines} = [];
 938                 $self->state('sendbody');
 939                 #push @out, $self->msg('sendbody');
 940                 push @out, $self->msg('m8');
 941         } elsif ($self->state eq 'sendbody') {
 942                 confess "local var gone missing" if !ref $self->{loc};
 943                 my $loc = $self->{loc};
 944                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
 945                         my $to;
 946
 947                         foreach $to (@{$loc->{to}}) {
 948                                 my $ref;
 949                                 my $systime = $main::systime;
 950                                 my $mycall = $main::mycall;
 951                                 $ref = DXMsg->alloc(DXMsg::next_transno('Msgno'),
 952                                                                         uc $to,
 953                                                                         exists $loc->{from} ? $loc->{from} : $self->call,
 954                                                                         $systime,
 955                                                                         $loc->{private},
 956                                                                         $loc->{subject},
 957                                                                         exists $loc->{origin} ? $loc->{origin} : $mycall,
 958                                                                         '0',
 959                                                                         $loc->{rrreq});
 960                                 $ref->swop_it($self->call);
 961                                 $ref->store($loc->{lines});
 962                                 $ref->add_dir();
 963                                 push @out, $self->msg('m11', $ref->{msgno}, $to);
 964                                 #push @out, "msgno $ref->{msgno} sent to $to";
 965                                 my $dxchan = DXChannel->get(uc $to);
 966                                 if ($dxchan) {
 967                                         if ($dxchan->is_user()) {
 968                                                 $dxchan->send($dxchan->msg('m9'));
 969                                         }
 970                                 }
 971                         }
 972
 973                         delete $loc->{lines};
 974                         delete $loc->{to};
 975                         delete $self->{loc};
 976                         $self->func(undef);
 977
 978                         $self->state('prompt');
 979                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
 980                         #push @out, $self->msg('sendabort');
 981                         push @out, $self->msg('m10');
 982                         delete $loc->{lines};
 983                         delete $loc->{to};
 984                         delete $self->{loc};
 985                         $self->func(undef);
 986                         $self->state('prompt');
 987                 } else {
 988                         if (my @ans = BadWords::check($line)) {
 989                                 $self->{badcount} += @ans;
 990                                 Log('msg', $self->call . " used badwords: @ans to @{$loc->{to}} subject: '$loc->{subject}' in msg");
 991                                 Log('msg', "line: $line");
 992                                 return ($self->msg('e17', @ans));
 993                         }
 994
 995                         # i.e. it ain't and end or abort, therefore store the line
 996                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
 997                 }
 998         }
 999         return @out;
1000 }
1001
1002 # return the standard directory line for this ref
1003 sub dir
1004 {
1005         my $ref = shift;
1006         my $flag = $ref->read ? '-' : ' ';
1007         $flag = 'D' if $ref->delete;
1008         return sprintf "%6d%s%s%5d %8.8s %8.8s %-6.6s %5.5s %-30.30s",
1009                 $ref->msgno, $flag, $ref->private ? 'p' : ' ', $ref->size,
1010                         $ref->to, $ref->from, cldate($ref->t), ztime($ref->t), $ref->subject;
1011 }
1012
1013 # load the forward table
1014 sub load_forward
1015 {
1016         my @out;
1017         my $s = readfilestr($forwardfn);
1018         if ($s) {
1019                 eval $s;
1020                 push @out, $@ if $@;
1021         }
1022         return @out;
1023 }
1024
1025 # load the bad message table
1026 sub load_badmsg
1027 {
1028         my @out;
1029         my $s = readfilestr($badmsgfn);
1030         if ($s) {
1031                 eval $s;
1032                 push @out, $@ if $@;
1033         }
1034         return @out;
1035 }
1036
1037 # load the swop message table
1038 sub load_swop
1039 {
1040         my @out;
1041         my $s = readfilestr($swopfn);
1042         if ($s) {
1043                 eval $s;
1044                 push @out, $@ if $@;
1045         }
1046         return @out;
1047 }
1048
1049 #
1050 # forward that message or not according to the forwarding table
1051 # returns 1 for forward, 0 - to ignore
1052 #
1053
1054 sub forward_it
1055 {
1056         my $ref = shift;
1057         my $call = shift;
1058         my $i;
1059
1060         for ($i = 0; $i < @forward; $i += 5) {
1061                 my ($sort, $field, $pattern, $action, $bbs) = @forward[$i..($i+4)];
1062                 my $tested;
1063
1064                 # are we interested?
1065                 next if $ref->{private} && $sort ne 'P';
1066                 next if !$ref->{private} && $sort ne 'B';
1067
1068                 # select field
1069                 $tested = $ref->{to} if $field eq 'T';
1070                 $tested = $ref->{from} if $field eq 'F';
1071                 $tested = $ref->{origin} if $field eq 'O';
1072                 $tested = $ref->{subject} if $field eq 'S';
1073
1074                 if (!$pattern || $tested =~ m{$pattern}i) {
1075                         return 0 if $action eq 'I';
1076                         return 1 if !$bbs || grep $_ eq $call, @{$bbs};
1077                 }
1078         }
1079         return 0;
1080 }
1081
1082 sub dump_it
1083 {
1084         my $ref = shift;
1085         my $call = shift;
1086         my $i;
1087
1088         for ($i = 0; $i < @badmsg; $i += 3) {
1089                 my ($sort, $field, $pattern) = @badmsg[$i..($i+2)];
1090                 my $tested;
1091
1092                 # are we interested?
1093                 next if $ref->{private} && $sort ne 'P';
1094                 next if !$ref->{private} && $sort ne 'B';
1095
1096                 # select field
1097                 $tested = $ref->{to} if $field eq 'T';
1098                 $tested = $ref->{from} if $field eq 'F';
1099                 $tested = $ref->{origin} if $field eq 'O';
1100                 $tested = $ref->{subject} if $field eq 'S';
1101                 $tested = $call if $field eq 'I';
1102
1103                 if (!$pattern || $tested =~ m{$pattern}i) {
1104                         return 1;
1105                 }
1106         }
1107         return 0;
1108 }
1109
1110 sub swop_it
1111 {
1112         my $ref = shift;
1113         my $call = shift;
1114         my $i;
1115         my $count = 0;
1116
1117         for ($i = 0; $i < @swop; $i += 5) {
1118                 my ($sort, $field, $pattern, $tfield, $topattern) = @swop[$i..($i+4)];
1119                 my $tested;
1120                 my $swop;
1121                 my $old;
1122
1123                 # are we interested?
1124                 next if $ref->{private} && $sort ne 'P';
1125                 next if !$ref->{private} && $sort ne 'B';
1126
1127                 # select field
1128                 $tested = $ref->{to} if $field eq 'T';
1129                 $tested = $ref->{from} if $field eq 'F';
1130                 $tested = $ref->{origin} if $field eq 'O';
1131                 $tested = $ref->{subject} if $field eq 'S';
1132
1133                 # select swop field
1134                 $old = $swop = $ref->{to} if $tfield eq 'T';
1135                 $old = $swop = $ref->{from} if $tfield eq 'F';
1136                 $old = $swop = $ref->{origin} if $tfield eq 'O';
1137                 $old = $swop = $ref->{subject} if $tfield eq 'S';
1138
1139                 if ($tested =~ m{$pattern}i) {
1140                         if ($tested eq $swop) {
1141                                 $swop =~ s{$pattern}{$topattern}i;
1142                         } else {
1143                                 $swop = $topattern;
1144                         }
1145                         Log('msg', "Msg $ref->{msgno}: $tfield $old -> $swop");
1146                         Log('dbg', "Msg $ref->{msgno}: $tfield $old -> $swop");
1147                         $ref->{to} = $swop if $tfield eq 'T';
1148                         $ref->{from} = $swop if $tfield eq 'F';
1149                         $ref->{origin} = $swop if $tfield eq 'O';
1150                         $ref->{subject} = $swop if $tfield eq 'S';
1151                         ++$count;
1152                 }
1153         }
1154         return $count;
1155 }
1156
1157 # import any msgs in the import directory
1158 # the messages are in BBS format (but may have cluster extentions
1159 # so SB UK < GB7TLH is legal
1160 sub import_msgs
1161 {
1162         # are there any to do in this directory?
1163         return unless -d $importfn;
1164         unless (opendir(DIR, $importfn)) {
1165                 dbg("can\'t open $importfn $!") if isdbg('msg');
1166                 Log('msg', "can\'t open $importfn $!");
1167                 return;
1168         }
1169
1170         my @names = readdir(DIR);
1171         closedir(DIR);
1172         my $name;
1173         foreach $name (@names) {
1174                 next if $name =~ /^\./;
1175                 my $splitit = $name =~ /^split/;
1176                 my $fn = "$importfn/$name";
1177                 next unless -f $fn;
1178                 unless (open(MSG, $fn)) {
1179                         dbg("can\'t open import file $fn $!") if isdbg('msg');
1180                         Log('msg', "can\'t open import file $fn $!");
1181                         unlink($fn);
1182                         next;
1183                 }
1184                 my @msg = map { chomp; $_ } <MSG>;
1185                 close(MSG);
1186                 unlink($fn);
1187                 my @out = import_one($main::me, \@msg, $splitit);
1188                 Log('msg', @out);
1189         }
1190         queue_msg(0);
1191 }
1192
1193 # import one message as a list in bbs (as extended) mode
1194 # takes a reference to an array containing the whole message
1195 sub import_one
1196 {
1197         my $dxchan = shift;
1198         my $ref = shift;
1199         my $splitit = shift;
1200         my $private = '1';
1201         my $rr = '0';
1202         my $notincalls = 1;
1203         my $from = $dxchan->call;
1204         my $origin = $main::mycall;
1205         my @to;
1206         my @out;
1207
1208         # first line;
1209         my $line = shift @$ref;
1210         my @f = split /\s+/, $line;
1211         unless (@f && $f[0] =~ /^(:?S|SP|SB|SEND)$/ ) {
1212                 my $m = "invalid first line in import '$line'";
1213                 dbg($m) if isdbg('msg');
1214                 return (1, $m);
1215         }
1216         while (@f) {
1217                 my $f = uc shift @f;
1218                 next if $f eq 'SEND';
1219
1220                 # private / noprivate / rr
1221                 if ($notincalls && ($f eq 'B' || $f eq 'SB' || $f =~ /^NOP/oi)) {
1222                         $private = '0';
1223                 } elsif ($notincalls && ($f eq 'P' || $f eq 'SP' || $f =~ /^PRI/oi)) {
1224                         ;
1225                 } elsif ($notincalls && ($f eq 'RR')) {
1226                         $rr = '1';
1227                 } elsif ($f eq '@' && @f) {       # this is bbs syntax, for AT
1228                         next;
1229                 } elsif ($f eq '<' && @f) {     # this is bbs syntax  for from call
1230                         $from = uc shift @f;
1231                 } elsif ($f =~ /^\$/) {     # this is bbs syntax  for a bid
1232                         next;
1233                 } elsif ($f =~ /^<\S+/) {     # this is bbs syntax  for from call
1234                         ($from) = $f =~ /^<(\S+)$/;
1235                 } elsif ($f =~ /^\@\S+/) {     # this is bbs syntax for origin
1236                         ($origin) = $f =~ /^\@(\S+)$/;
1237                 } else {
1238
1239                         # callsign ?
1240                         $notincalls = 0;
1241
1242                         # is this callsign a distro?
1243                         my $fn = "$msgdir/distro/$f.pl";
1244                         if (-e $fn) {
1245                                 my $fh = new IO::File $fn;
1246                                 if ($fh) {
1247                                         local $/ = undef;
1248                                         my $s = <$fh>;
1249                                         $fh->close;
1250                                         my @call;
1251                                         @call = eval $s;
1252                                         return (1, "Error in Distro $f.pl:", $@) if $@;
1253                                         if (@call > 0) {
1254                                                 push @f, @call;
1255                                                 next;
1256                                         }
1257                                 }
1258                         }
1259
1260                         if (grep $_ eq $f, @DXMsg::badmsg) {
1261                                 push @out, $dxchan->msg('m3', $f);
1262                         } else {
1263                                 push @to, $f;
1264                         }
1265                 }
1266         }
1267
1268         # subject is the next line
1269         my $subject = shift @$ref;
1270
1271         # strip off trailing lines
1272         pop @$ref while (@$ref && $$ref[-1] =~ /^\s*$/);
1273
1274         # strip off /EX or /ABORT
1275         return ("aborted") if @$ref && $$ref[-1] =~ m{^/ABORT$}i;
1276         pop @$ref if (@$ref && $$ref[-1] =~ m{^/EX$}i);
1277
1278         # sort out any splitting that needs to be done
1279         my @chunk;
1280         if ($splitit) {
1281                 my $lth = 0;
1282                 my $lines = [];
1283                 for (@$ref) {
1284                         if ($lth >= $maxchunk || ($lth > $minchunk && /^\s*$/)) {
1285                                 push @chunk, $lines;
1286                                 $lines = [];
1287                                 $lth = 0;
1288                         }
1289                         push @$lines, $_;
1290                         $lth += length;
1291                 }
1292                 push @chunk, $lines if @$lines;
1293         } else {
1294                 push @chunk, $ref;
1295         }
1296
1297     # write all the messages away
1298         my $i;
1299         for ( $i = 0;  $i < @chunk; $i++) {
1300                 my $chunk = $chunk[$i];
1301                 my $ch_subject;
1302                 if (@chunk > 1) {
1303                         my $num = " [" . ($i+1) . "/" . scalar @chunk . "]";
1304                         $ch_subject = substr($subject, 0, 27 - length $num) .  $num;
1305                 } else {
1306                         $ch_subject = $subject;
1307                 }
1308                 my $to;
1309                 foreach $to (@to) {
1310                         my $systime = $main::systime;
1311                         my $mycall = $main::mycall;
1312                         my $mref = DXMsg->alloc(DXMsg::next_transno('Msgno'),
1313                                                                         $to,
1314                                                                         $from,
1315                                                                         $systime,
1316                                                                         $private,
1317                                                                         $ch_subject,
1318                                                                         $origin,
1319                                                                         '0',
1320                                                                         $rr);
1321                         $mref->swop_it($main::mycall);
1322                         $mref->store($chunk);
1323                         $mref->add_dir();
1324                         push @out, $dxchan->msg('m11', $mref->{msgno}, $to);
1325                         #push @out, "msgno $ref->{msgno} sent to $to";
1326                         my $todxchan = DXChannel->get(uc $to);
1327                         if ($todxchan) {
1328                                 if ($todxchan->is_user()) {
1329                                         $todxchan->send($todxchan->msg('m9'));
1330                                 }
1331                         }
1332                 }
1333         }
1334         return @out;
1335 }
1336
1337 no strict;
1338 sub AUTOLOAD
1339 {
1340         my $self = shift;
1341         my $name = $AUTOLOAD;
1342         return if $name =~ /::DESTROY$/;
1343         $name =~ s/.*:://o;
1344
1345         confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
1346         # this clever line of code creates a subroutine which takes over from autoload
1347         # from OO Perl - Conway
1348         *{$AUTOLOAD} = sub {@_ > 1 ? $_[0]->{$name} = $_[1] : $_[0]->{$name}} ;
1349         @_ ? $self->{$name} = shift : $self->{$name} ;
1350 }
1351
1352 1;
1353
1354 __END__