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 $residencetime
  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 $residencetime = 2*86400;       # keep deleted messages for this amount of time
  59
  60
  61 $badmsgfn = "$msgdir/badmsg.pl";    # list of TO address we wont store
  62 $forwardfn = "$msgdir/forward.pl";  # the forwarding table
  63 $swopfn = "$msgdir/swop.pl";        # the swopping table
  64 $importfn = "$msgdir/import";       # import directory
  65
  66
  67 %valid = (
  68                   fromnode => '5,From Node',
  69                   tonode => '5,To Node',
  70                   to => '0,To',
  71                   from => '0,From',
  72                   t => '0,Msg Time,cldatetime',
  73                   private => '5,Private,yesno',
  74                   subject => '0,Subject',
  75                   linesreq => '0,Lines per Gob',
  76                   rrreq => '5,Read Confirm,yesno',
  77                   origin => '0,Origin',
  78                   lines => '5,Data',
  79                   stream => '9,Stream No',
  80                   count => '5,Gob Linecnt',
  81                   file => '5,File?,yesno',
  82                   gotit => '5,Got it Nodes,parray',
  83                   lines => '5,Lines,parray',
  84                   'read' => '5,Times read',
  85                   size => '0,Size',
  86                   msgno => '0,Msgno',
  87                   keep => '0,Keep this?,yesno',
  88                   lastt => '5,Last processed,cldatetime',
  89                   waitt => '5,Wait until,cldatetime',
  90                   delete => '5,Awaiting Delete,yesno',
  91                   deletetime => '5,Deletion Time,cldatetime',
  92                  );
  93
  94 # allocate a new object
  95 # called fromnode, tonode, from, to, datetime, private?, subject, nolinesper
  96 sub alloc
  97 {
  98         my $pkg = shift;
  99         my $self = bless {}, $pkg;
 100         $self->{msgno} = shift;
 101         my $to = shift;
 102         #  $to =~ s/-\d+$//o;
 103         $self->{to} = ($to eq $main::mycall) ? $main::myalias : $to;
 104         my $from = shift;
 105         $from =~ s/-\d+$//o;
 106         $self->{from} = uc $from;
 107         $self->{t} = shift;
 108         $self->{private} = shift;
 109         $self->{subject} = shift;
 110         $self->{origin} = shift;
 111         $self->{'read'} = shift;
 112         $self->{rrreq} = shift;
 113         $self->{gotit} = [];
 114 #       $self->{lastt} = $main::systime;
 115         $self->{lines} = [];
 116         $self->{private} = 1 if $bulltopriv && DXUser->get_current($self->{to});
 117
 118         return $self;
 119 }
 120
 121
 122 sub process
 123 {
 124         my ($self, $line) = @_;
 125
 126         # this is periodic processing
 127         if (!$self || !$line) {
 128
 129                 if ($main::systime >= $lastq + $queueinterval) {
 130
 131                         # queue some message if the interval timer has gone off
 132                         queue_msg(0);
 133
 134                         # import any messages in the import directory
 135                         import_msgs();
 136
 137                         $lastq = $main::systime;
 138                 }
 139
 140                 # clean the message queue
 141                 clean_old() if $main::systime - $last_clean > 3600 ;
 142                 $last_clean = $main::systime;
 143                 return;
 144         }
 145
 146         my @f = split /\^/, $line;
 147         my ($pcno) = $f[0] =~ /^PC(\d\d)/; # just get the number
 148         my ($tonode, $fromnode) = @f[1, 2];
 149         my $stream = $f[3] if ($pcno >= 29 && $pcno <= 33) || $pcno == 42;
 150
 151  SWITCH: {
 152                 if ($pcno == 28) {              # incoming message
 153
 154                         # sort out various extant protocol errors that occur
 155                         my $origin = $f[13];
 156                         $origin = $self->call unless $origin && $origin gt ' ';
 157
 158                         # first look for any messages in the busy queue
 159                         # and cancel them this should both resolve timed out incoming messages
 160                         # and crossing of message between nodes, incoming messages have priority
 161
 162                         my $ref = get_busy($fromnode);
 163                         if ($ref) {
 164                                 my $otonode = $ref->{tonode} || "unknown";
 165                                 dbg("Busy, stopping msgno: $ref->{msgno} $fromnode->$otonode") if isdbg('msg');
 166                                 $ref->stop_msg($fromnode);
 167                         }
 168
 169                         my $t = cltounix($f[5], $f[6]);
 170                         $stream = next_transno($fromnode);
 171                         $ref = DXMsg->alloc($stream, uc $f[3], $f[4], $t, $f[7], $f[8], $origin, '0', $f[11]);
 172
 173                         # fill in various forwarding state variables
 174                         $ref->{fromnode} = $fromnode;
 175                         $ref->{tonode} = $tonode;
 176                         $ref->{rrreq} = $f[11];
 177                         $ref->{linesreq} = $f[10];
 178                         $ref->{stream} = $stream;
 179                         $ref->{count} = 0;      # no of lines between PC31s
 180                         dbg("new message from $f[4] to $f[3] '$f[8]' stream $fromnode/$stream\n") if isdbg('msg');
 181                         Log('msg', "Incoming message $f[4] to $f[3] '$f[8]' origin: $origin" );
 182                         set_fwq($fromnode, $stream, $ref); # store in work
 183                         set_busy($fromnode, $ref); # set interlock
 184                         $self->send(DXProt::pc30($fromnode, $tonode, $stream)); # send ack
 185                         $ref->{lastt} = $main::systime;
 186
 187                         # look to see whether this is a non private message sent to a known callsign
 188                         my $uref = DXUser->get_current($ref->{to});
 189                         if (is_callsign($ref->{to}) && !$ref->{private} && $uref && $uref->homenode) {
 190                                 $ref->{private} = 1;
 191                                 dbg("set bull to $ref->{to} to private") if isdbg('msg');
 192                                 Log('msg', "set bull to $ref->{to} to private");
 193                         }
 194                         last SWITCH;
 195                 }
 196
 197                 if ($pcno == 29) {              # incoming text
 198                         my $ref = get_fwq($fromnode, $stream);
 199                         if ($ref) {
 200                                 $f[4] =~ s/\%5E/^/g;
 201                                 if (@{$ref->{lines}}) {
 202                                         push @{$ref->{lines}}, $f[4];
 203                                 } else {
 204                                         # temporarily store any R: lines so that we end up with
 205                                         # only the first and last ones stored.
 206                                         if ($f[4] =~ m|^R:\d{6}/\d{4}|) {
 207                                                 push @{$ref->{tempr}}, $f[4];
 208                                         } else {
 209                                                 if (exists $ref->{tempr}) {
 210                                                         push @{$ref->{lines}}, shift @{$ref->{tempr}};
 211                                                         push @{$ref->{lines}}, pop @{$ref->{tempr}} if @{$ref->{tempr}};
 212                                                         delete $ref->{tempr};
 213                                                 }
 214                                                 push @{$ref->{lines}}, $f[4];
 215                                         }
 216                                 }
 217                                 $ref->{count}++;
 218                                 if ($ref->{count} >= $ref->{linesreq}) {
 219                                         $self->send(DXProt::pc31($fromnode, $tonode, $stream));
 220                                         dbg("stream $stream: $ref->{count} lines received\n") if isdbg('msg');
 221                                         $ref->{count} = 0;
 222                                 }
 223                                 $ref->{lastt} = $main::systime;
 224                         } else {
 225                                 dbg("PC29 from unknown stream $stream from $fromnode") if isdbg('msg');
 226                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 227                         }
 228                         last SWITCH;
 229                 }
 230
 231                 if ($pcno == 30) {              # this is a incoming subject ack
 232                         my $ref = get_fwq($fromnode);   # note no stream at this stage
 233                         if ($ref) {
 234                                 del_fwq($fromnode);
 235                                 $ref->{stream} = $stream;
 236                                 $ref->{count} = 0;
 237                                 $ref->{linesreq} = 5;
 238                                 set_fwq($fromnode, $stream, $ref);      # new ref
 239                                 set_busy($fromnode, $ref); # interlock
 240                                 dbg("incoming subject ack stream $stream\n") if isdbg('msg');
 241                                 $ref->{lines} = [ $ref->read_msg_body ];
 242                                 $ref->send_tranche($self);
 243                                 $ref->{lastt} = $main::systime;
 244                         } else {
 245                                 dbg("PC30 from unknown stream $stream from $fromnode") if isdbg('msg');
 246                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 247                         }
 248                         last SWITCH;
 249                 }
 250
 251                 if ($pcno == 31) {              # acknowledge a tranche of lines
 252                         my $ref = get_fwq($fromnode, $stream);
 253                         if ($ref) {
 254                                 dbg("tranche ack stream $stream\n") if isdbg('msg');
 255                                 $ref->send_tranche($self);
 256                                 $ref->{lastt} = $main::systime;
 257                         } else {
 258                                 dbg("PC31 from unknown stream $stream from $fromnode") if isdbg('msg');
 259                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 260                         }
 261                         last SWITCH;
 262                 }
 263
 264                 if ($pcno == 32) {              # incoming EOM
 265                         dbg("stream $stream: EOM received\n") if isdbg('msg');
 266                         my $ref = get_fwq($fromnode, $stream);
 267                         if ($ref) {
 268                                 $self->send(DXProt::pc33($fromnode, $tonode, $stream)); # acknowledge it
 269
 270                                 # get the next msg no - note that this has NOTHING to do with the stream number in PC protocol
 271                                 # store the file or message
 272                                 # remove extraneous rubbish from the hash
 273                                 # remove it from the work in progress vector
 274                                 # stuff it on the msg queue
 275                                 if ($ref->{lines}) {
 276                                         if ($ref->{file}) {
 277                                                 $ref->store($ref->{lines});
 278                                         } else {
 279
 280                                                 # does an identical message already exist?
 281                                                 my $m;
 282                                                 for $m (@msg) {
 283                                                         if ($ref->{subject} eq $m->{subject} && $ref->{t} == $m->{t} && $ref->{from} eq $m->{from} && $ref->{to} eq $m->{to}) {
 284                                                                 $ref->stop_msg($fromnode);
 285                                                                 my $msgno = $m->{msgno};
 286                                                                 dbg("duplicate message from $ref->{from} -> $ref->{to} to msg: $msgno") if isdbg('msg');
 287                                                                 Log('msg', "duplicate message from $ref->{from} -> $ref->{to} to msg: $msgno");
 288                                                                 return;
 289                                                         }
 290                                                 }
 291
 292                                                 # swop addresses
 293                                                 $ref->swop_it($self->call);
 294
 295                                                 # look for 'bad' to addresses
 296                                                 if ($ref->dump_it($self->call)) {
 297                                                         $ref->stop_msg($fromnode);
 298                                                         dbg("'Bad' message $ref->{to}") if isdbg('msg');
 299                                                         Log('msg', "'Bad' message $ref->{to}");
 300                                                         return;
 301                                                 }
 302
 303                                                 # check the message for bad words
 304                                                 my @words;
 305                                                 for (@{$ref->{lines}}) {
 306                                                         push @words, BadWords::check($_);
 307                                                 }
 308                                                 push @words, BadWords::check($ref->{subject});
 309                                                 if (@words) {
 310                                                         dbg("message with badwords '@words' $ref->{from} -> $ref->{to} '$ref->{subject}' origin: $ref->{origin} via " . $self->call) if isdbg('msg');
 311                                                         Log('msg',"message with badwords '@words' $ref->{from} -> $ref->{to} origin: $ref->{origin} via " . $self->call);
 312                                                         Log('msg',"subject: $ref->{subject}");
 313                                                         for (@{$ref->{lines}}) {
 314                                                                 Log('msg', "line: $_");
 315                                                         }
 316                                                         $ref->stop_msg($fromnode);
 317                                                         return;
 318                                                 }
 319
 320                                                 $ref->{msgno} = next_transno("Msgno");
 321                                                 push @{$ref->{gotit}}, $fromnode; # mark this up as being received
 322                                                 $ref->store($ref->{lines});
 323                                                 add_dir($ref);
 324                                                 my $dxchan = DXChannel->get($ref->{to});
 325                                                 $dxchan->send($dxchan->msg('m9')) if $dxchan && $dxchan->is_user;
 326                                                 Log('msg', "Message $ref->{msgno} from $ref->{from} received from $fromnode for $ref->{to}");
 327                                         }
 328                                 }
 329                                 $ref->stop_msg($fromnode);
 330                         } else {
 331                                 dbg("PC32 from unknown stream $stream from $fromnode") if isdbg('msg');
 332                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 333                         }
 334                         # queue_msg(0);
 335                         last SWITCH;
 336                 }
 337
 338                 if ($pcno == 33) {              # acknowledge the end of message
 339                         my $ref = get_fwq($fromnode, $stream);
 340                         if ($ref) {
 341                                 if ($ref->{private}) { # remove it if it private and gone off site#
 342                                         Log('msg', "Message $ref->{msgno} from $ref->{from} sent to $fromnode and deleted");
 343                                         $ref->{delete}++;
 344                                         $ref->{deletetime} = $main::systime + $residencetime;
 345                                 } else {
 346                                         Log('msg', "Message $ref->{msgno} from $ref->{from} sent to $fromnode");
 347                                         push @{$ref->{gotit}}, $fromnode; # mark this up as being received
 348                                         $ref->store($ref->{lines});     # re- store the file
 349                                 }
 350                                 $ref->stop_msg($fromnode);
 351                         } else {
 352                                 dbg("PC33 from unknown stream $stream from $fromnode") if isdbg('msg');
 353                                 $self->send(DXProt::pc42($fromnode, $tonode, $stream)); # unknown stream
 354                         }
 355
 356                         # send next one if present
 357                         queue_msg(0);
 358                         last SWITCH;
 359                 }
 360
 361                 if ($pcno == 40) {              # this is a file request
 362                         $f[3] =~ s/\\/\//og; # change the slashes
 363                         $f[3] =~ s/\.//og;      # remove dots
 364                         $f[3] =~ s/^\///o;   # remove the leading /
 365                         $f[3] = lc $f[3];       # to lower case;
 366                         dbg("incoming file $f[3]\n") if isdbg('msg');
 367                         $f[3] = 'packclus/' . $f[3] unless $f[3] =~ /^packclus\//o;
 368
 369                         # create any directories
 370                         my @part = split /\//, $f[3];
 371                         my $part;
 372                         my $fn = "$main::root";
 373                         pop @part;                      # remove last part
 374                         foreach $part (@part) {
 375                                 $fn .= "/$part";
 376                                 next if -e $fn;
 377                                 last SWITCH if !mkdir $fn, 0777;
 378                                 dbg("created directory $fn\n") if isdbg('msg');
 379                         }
 380                         my $stream = next_transno($fromnode);
 381                         my $ref = DXMsg->alloc($stream, "$main::root/$f[3]", $self->call, time, !$f[4], $f[3], ' ', '0', '0');
 382
 383                         # forwarding variables
 384                         $ref->{fromnode} = $tonode;
 385                         $ref->{tonode} = $fromnode;
 386                         $ref->{linesreq} = $f[5];
 387                         $ref->{stream} = $stream;
 388                         $ref->{count} = 0;      # no of lines between PC31s
 389                         $ref->{file} = 1;
 390                         $ref->{lastt} = $main::systime;
 391                         set_fwq($fromnode, $stream, $ref); # store in work
 392                         $self->send(DXProt::pc30($fromnode, $tonode, $stream)); # send ack
 393
 394                         last SWITCH;
 395                 }
 396
 397                 if ($pcno == 42) {              # abort transfer
 398                         dbg("stream $stream: abort received\n") if isdbg('msg');
 399                         my $ref = get_fwq($fromnode, $stream);
 400                         if ($ref) {
 401                                 $ref->stop_msg($fromnode);
 402                                 $ref = undef;
 403                         }
 404                         last SWITCH;
 405                 }
 406
 407                 if ($pcno == 49) {      # global delete on subject
 408                         for (@msg) {
 409                                 if ($_->{from} eq $f[1] && $_->{subject} eq $f[2]) {
 410                                         $_->{delete}++;
 411                                         $_->{deletetime} = $main::systime + $residencetime;
 412                                         Log('msg', "Message $_->{msgno} from $_->{from} ($_->{subject}) fully deleted");
 413                                         DXChannel::broadcast_nodes($line, $self);
 414                                 }
 415                         }
 416                 }
 417         }
 418 }
 419
 420
 421 # store a message away on disc or whatever
 422 #
 423 # NOTE the second arg is a REFERENCE not a list
 424 sub store
 425 {
 426         my $ref = shift;
 427         my $lines = shift;
 428
 429         if ($ref->{file}) {                     # a file
 430                 dbg("To be stored in $ref->{to}\n") if isdbg('msg');
 431
 432                 my $fh = new IO::File "$ref->{to}", "w";
 433                 if (defined $fh) {
 434                         my $line;
 435                         foreach $line (@{$lines}) {
 436                                 print $fh "$line\n";
 437                         }
 438                         $fh->close;
 439                         dbg("file $ref->{to} stored\n") if isdbg('msg');
 440                         Log('msg', "file $ref->{to} from $ref->{from} stored" );
 441                 } else {
 442                         confess "can't open file $ref->{to} $!";
 443                 }
 444         } else {                                        # a normal message
 445
 446                 # attempt to open the message file
 447                 my $fn = filename($ref->{msgno});
 448
 449                 dbg("To be stored in $fn\n") if isdbg('msg');
 450
 451                 # now save the file, overwriting what's there, YES I KNOW OK! (I will change it if it's a problem)
 452                 my $fh = new IO::File "$fn", "w";
 453                 if (defined $fh) {
 454                         my $rr = $ref->{rrreq} ? '1' : '0';
 455                         my $priv = $ref->{private} ? '1': '0';
 456                         print $fh "=== $ref->{msgno}^$ref->{to}^$ref->{from}^$ref->{t}^$priv^$ref->{subject}^$ref->{origin}^$ref->{'read'}^$rr\n";
 457                         print $fh "=== ", join('^', @{$ref->{gotit}}), "\n";
 458                         my $line;
 459                         $ref->{size} = 0;
 460                         foreach $line (@{$lines}) {
 461                                 $ref->{size} += (length $line) + 1;
 462                                 print $fh "$line\n";
 463                         }
 464                         $fh->close;
 465                         dbg("msg $ref->{msgno} stored\n") if isdbg('msg');
 466                         Log('msg', "msg $ref->{msgno} from $ref->{from} to $ref->{to} stored" );
 467                 } else {
 468                         confess "can't open msg file $fn $!";
 469                 }
 470         }
 471 }
 472
 473 # delete a message
 474 sub del_msg
 475 {
 476         my $self = shift;
 477         my $dxchan = shift;
 478
 479         if ($self->{tonode}) {
 480                 $self->{delete}++;
 481                 $self->{deletetime} = 0;
 482         } else {
 483                 my $call;
 484                 if ($dxchan) {
 485                         $call = " by " . $dxchan->call;
 486                 } else {
 487                         $call = '';
 488                 }
 489
 490                 # remove it from the active message list
 491                 @msg = grep { $_ != $self } @msg;
 492
 493                 # remove the file
 494                 unlink filename($self->{msgno});
 495         }
 496 }
 497
 498 # clean out old messages from the message queue
 499 sub clean_old
 500 {
 501         my $ref;
 502
 503         # mark old messages for deletion
 504         foreach $ref (@msg) {
 505                 if (ref($ref) && !$ref->{keep} && $ref->{t} < $main::systime - $maxage) {
 506                         $ref->{delete} = 1;
 507                         $ref->{deletetime} = 0;
 508                 }
 509         }
 510 }
 511
 512 # read in a message header
 513 sub read_msg_header
 514 {
 515         my $fn = shift;
 516         my $file;
 517         my $line;
 518         my $ref;
 519         my @f;
 520         my $size;
 521
 522         $file = new IO::File "$fn";
 523         if (!$file) {
 524             dbg("Error reading $fn $!");
 525             Log('err', "Error reading $fn $!");
 526                 return undef;
 527         }
 528         $size = -s $fn;
 529         $line = <$file>;                        # first line
 530         if ($size == 0 || !$line) {
 531             dbg("Empty $fn $!");
 532             Log('err', "Empty $fn $!");
 533                 return undef;
 534         }
 535         chomp $line;
 536         $size -= length $line;
 537         if (! $line =~ /^===/o) {
 538                 dbg("corrupt first line in $fn ($line)");
 539                 Log('err', "corrupt first line in $fn ($line)");
 540                 return undef;
 541         }
 542         $line =~ s/^=== //o;
 543         @f = split /\^/, $line;
 544         $ref = DXMsg->alloc(@f);
 545
 546         $line = <$file>;                        # second line
 547         chomp $line;
 548         $size -= length $line;
 549         if (! $line =~ /^===/o) {
 550             dbg("corrupt second line in $fn ($line)");
 551             Log('err', "corrupt second line in $fn ($line)");
 552                 return undef;
 553         }
 554         $line =~ s/^=== //o;
 555         $ref->{gotit} = [];
 556         @f = split /\^/, $line;
 557         push @{$ref->{gotit}}, @f;
 558         $ref->{size} = $size;
 559
 560         close($file);
 561
 562         return $ref;
 563 }
 564
 565 # read in a message header
 566 sub read_msg_body
 567 {
 568         my $self = shift;
 569         my $msgno = $self->{msgno};
 570         my $file;
 571         my $line;
 572         my $fn = filename($msgno);
 573         my @out;
 574
 575         $file = new IO::File;
 576         if (!open($file, $fn)) {
 577                 dbg("Error reading $fn $!");
 578                 Log('err' ,"Error reading $fn $!");
 579                 return ();
 580         }
 581         @out = map {chomp; $_} <$file>;
 582         close($file);
 583
 584         shift @out if $out[0] =~ /^=== /;
 585         shift @out if $out[0] =~ /^=== /;
 586         return @out;
 587 }
 588
 589 # send a tranche of lines to the other end
 590 sub send_tranche
 591 {
 592         my ($self, $dxchan) = @_;
 593         my @out;
 594         my $to = $self->{tonode};
 595         my $from = $self->{fromnode};
 596         my $stream = $self->{stream};
 597         my $lines = $self->{lines};
 598         my ($c, $i);
 599
 600         for ($i = 0, $c = $self->{count}; $i < $self->{linesreq} && $c < @$lines; $i++, $c++) {
 601                 push @out, DXProt::pc29($to, $from, $stream, $lines->[$c]);
 602     }
 603     $self->{count} = $c;
 604
 605     push @out, DXProt::pc32($to, $from, $stream) if $i < $self->{linesreq};
 606         $dxchan->send(@out);
 607 }
 608
 609
 610 # find a message to send out and start the ball rolling
 611 sub queue_msg
 612 {
 613         my $sort = shift;
 614         my $ref;
 615         my $clref;
 616
 617         # bat down the message list looking for one that needs to go off site and whose
 618         # nearest node is not busy.
 619
 620         dbg("queue msg ($sort)\n") if isdbg('msg');
 621         my @nodelist = DXChannel::get_all_nodes;
 622         foreach $ref (@msg) {
 623
 624                 # ignore 'delayed' messages until their waiting time has expired
 625                 if (exists $ref->{waitt}) {
 626                         next if $ref->{waitt} > $main::systime;
 627                         delete $ref->{waitt};
 628                 }
 629
 630                 # any time outs?
 631                 if (exists $ref->{lastt} && $main::systime >= $ref->{lastt} + $timeout) {
 632                         my $node = $ref->{tonode};
 633                         dbg("Timeout, stopping msgno: $ref->{msgno} -> $node") if isdbg('msg');
 634                         Log('msg', "Timeout, stopping msgno: $ref->{msgno} -> $node");
 635                         $ref->stop_msg($node);
 636
 637                         # delay any outgoing messages that fail
 638                         $ref->{waitt} = $main::systime + $waittime + rand(120) if $node ne $main::mycall;
 639                         delete $ref->{lastt};
 640                         next;
 641                 }
 642
 643                 # is it being sent anywhere currently?
 644                 next if $ref->{tonode};           # ignore it if it already being processed
 645
 646                 # is it awaiting deletion?
 647                 if ($ref->{delete} && $main::systime > $ref->{deletetime}) {
 648                         $ref->del_msg;
 649                         next;
 650                 }
 651
 652                 # firstly, is it private and unread? if so can I find the recipient
 653                 # in my cluster node list offsite?
 654
 655                 # deal with routed private messages
 656                 my $dxchan;
 657                 if ($ref->{private}) {
 658                         next if $ref->{'read'};           # if it is read, it is stuck here
 659                         $clref = Route::get($ref->{to});
 660                         if ($clref) {
 661                                 $dxchan = $clref->dxchan;
 662                                 if ($dxchan) {
 663                                         if ($dxchan->is_node) {
 664                                                 next if $clref->call eq $main::mycall;  # i.e. it lives here
 665                                                 $ref->start_msg($dxchan) if !get_busy($dxchan->call)  && $dxchan->state eq 'normal';
 666                                         }
 667                                 } else {
 668                                         dbg("Route: No dxchan for $ref->{to} " . ref($clref) ) if isdbg('msg');
 669                                 }
 670                         }
 671                 } else {
 672
 673                         # otherwise we are dealing with a bulletin or forwarded private message
 674                         # compare the gotit list with
 675                         # the nodelist up above, if there are sites that haven't got it yet
 676                         # then start sending it - what happens when we get loops is anyone's
 677                         # guess, use (to, from, time, subject) tuple?
 678                         foreach $dxchan (@nodelist) {
 679                                 my $call = $dxchan->call;
 680                                 next unless $call;
 681                                 next if $call eq $main::mycall;
 682                                 next if ref $ref->{gotit} && grep $_ eq $call, @{$ref->{gotit}};
 683                                 next unless $ref->forward_it($call);           # check the forwarding file
 684                                 next if $ref->{tonode};           # ignore it if it already being processed
 685
 686                                 # if we are here we have a node that doesn't have this message
 687                                 if (!get_busy($call)  && $dxchan->state eq 'normal') {
 688                                         $ref->start_msg($dxchan);
 689                                         last;
 690                                 }
 691                         }
 692                 }
 693
 694                 # if all the available nodes are busy then stop
 695                 last if @nodelist == scalar grep { get_busy($_->call) } @nodelist;
 696         }
 697 }
 698
 699 # is there a message for me?
 700 sub for_me
 701 {
 702         my $call = uc shift;
 703         my $ref;
 704
 705         foreach $ref (@msg) {
 706                 # is it for me, private and unread?
 707                 if ($ref->{to} eq $call && $ref->{private}) {
 708                         return 1 if !$ref->{'read'};
 709                 }
 710         }
 711         return 0;
 712 }
 713
 714 # start the message off on its travels with a PC28
 715 sub start_msg
 716 {
 717         my ($self, $dxchan) = @_;
 718
 719         confess("trying to start started msg $self->{msgno} nodes: $self->{fromnode} -> $self->{tonode}") if $self->{tonode};
 720         dbg("start msg $self->{msgno}\n") if isdbg('msg');
 721         $self->{linesreq} = 10;
 722         $self->{count} = 0;
 723         $self->{tonode} = $dxchan->call;
 724         $self->{fromnode} = $main::mycall;
 725         set_busy($self->{tonode}, $self);
 726         set_fwq($self->{tonode}, undef, $self);
 727         $self->{lastt} = $main::systime;
 728         my ($fromnode, $origin);
 729         $fromnode = $self->{fromnode};
 730         $origin = $self->{origin};
 731         $dxchan->send(DXProt::pc28($self->{tonode}, $fromnode, $self->{to}, $self->{from}, $self->{t}, $self->{private}, $self->{subject}, $origin, $self->{rrreq}));
 732 }
 733
 734 # get the ref of a busy node
 735 sub get_busy
 736 {
 737         my $call = shift;
 738         return $busy{$call};
 739 }
 740
 741 sub set_busy
 742 {
 743         my $call = shift;
 744         return $busy{$call} = shift;
 745 }
 746
 747 sub del_busy
 748 {
 749         my $call = shift;
 750         return delete $busy{$call};
 751 }
 752
 753 # get the whole busy queue
 754 sub get_all_busy
 755 {
 756         return keys %busy;
 757 }
 758
 759 # get a forwarding queue entry
 760 sub get_fwq
 761 {
 762         my $call = shift;
 763         my $stream = shift || '0';
 764         return $work{"$call,$stream"};
 765 }
 766
 767 # delete a forwarding queue entry
 768 sub del_fwq
 769 {
 770         my $call = shift;
 771         my $stream = shift || '0';
 772         return delete $work{"$call,$stream"};
 773 }
 774
 775 # set a fwq entry
 776 sub set_fwq
 777 {
 778         my $call = shift;
 779         my $stream = shift || '0';
 780         return $work{"$call,$stream"} = shift;
 781 }
 782
 783 # get the whole forwarding queue
 784 sub get_all_fwq
 785 {
 786         return keys %work;
 787 }
 788
 789 # stop a message from continuing, clean it out, unlock interlocks etc
 790 sub stop_msg
 791 {
 792         my $self = shift;
 793         my $node = shift;
 794         my $stream = $self->{stream};
 795
 796
 797         dbg("stop msg $self->{msgno} -> node $node\n") if isdbg('msg');
 798         del_fwq($node, $stream);
 799         $self->workclean;
 800         del_busy($node);
 801 }
 802
 803 sub workclean
 804 {
 805         my $ref = shift;
 806         delete $ref->{lines};
 807         delete $ref->{linesreq};
 808         delete $ref->{tonode};
 809         delete $ref->{fromnode};
 810         delete $ref->{stream};
 811         delete $ref->{file};
 812         delete $ref->{count};
 813         delete $ref->{tempr};
 814         delete $ref->{lastt};
 815         delete $ref->{waitt};
 816 }
 817
 818 # get a new transaction number from the file specified
 819 sub next_transno
 820 {
 821         my $name = shift;
 822         $name =~ s/\W//og;                      # remove non-word characters
 823         my $fn = "$msgdir/$name";
 824         my $msgno;
 825
 826         my $fh = new IO::File;
 827         if (sysopen($fh, $fn, O_RDWR|O_CREAT, 0666)) {
 828                 $fh->autoflush(1);
 829                 $msgno = $fh->getline || '0';
 830                 chomp $msgno;
 831                 $msgno++;
 832                 seek $fh, 0, 0;
 833                 $fh->print("$msgno\n");
 834                 dbg("msgno $msgno allocated for $name\n") if isdbg('msg');
 835                 $fh->close;
 836         } else {
 837                 confess "can't open $fn $!";
 838         }
 839         return $msgno;
 840 }
 841
 842 # initialise the message 'system', read in all the message headers
 843 sub init
 844 {
 845         my $dir = new IO::File;
 846         my @dir;
 847         my $ref;
 848
 849         # load various control files
 850         dbg("load badmsg: " . (load_badmsg() or "Ok"));
 851         dbg("load forward: " . (load_forward() or "Ok"));
 852         dbg("load swop: " . (load_swop() or "Ok"));
 853
 854         # read in the directory
 855         opendir($dir, $msgdir) or confess "can't open $msgdir $!";
 856         @dir = readdir($dir);
 857         closedir($dir);
 858
 859         @msg = ();
 860         for (sort @dir) {
 861                 next unless /^m\d\d\d\d\d\d$/;
 862
 863                 $ref = read_msg_header("$msgdir/$_");
 864                 unless ($ref) {
 865                         dbg("Deleting $_");
 866                         Log('err', "Deleting $_");
 867                         unlink "$msgdir/$_";
 868                         next;
 869                 }
 870
 871                 # delete any messages to 'badmsg.pl' places
 872                 if ($ref->dump_it('')) {
 873                         dbg("'Bad' TO address $ref->{to}") if isdbg('msg');
 874                         Log('msg', "'Bad' TO address $ref->{to}");
 875                         $ref->del_msg;
 876                         next;
 877                 }
 878
 879                 # add the message to the available queue
 880                 add_dir($ref);
 881         }
 882 }
 883
 884 # add the message to the directory listing
 885 sub add_dir
 886 {
 887         my $ref = shift;
 888         confess "tried to add a non-ref to the msg directory" if !ref $ref;
 889         push @msg, $ref;
 890 }
 891
 892 # return all the current messages
 893 sub get_all
 894 {
 895         return @msg;
 896 }
 897
 898 # get a particular message
 899 sub get
 900 {
 901         my $msgno = shift;
 902         for (@msg) {
 903                 return $_ if $_->{msgno} == $msgno;
 904                 last if $_->{msgno} > $msgno;
 905         }
 906         return undef;
 907 }
 908
 909 # return the official filename for a message no
 910 sub filename
 911 {
 912         return sprintf "$msgdir/m%06d", shift;
 913 }
 914
 915 #
 916 # return a list of valid elements
 917 #
 918
 919 sub fields
 920 {
 921         return keys(%valid);
 922 }
 923
 924 #
 925 # return a prompt for a field
 926 #
 927
 928 sub field_prompt
 929 {
 930         my ($self, $ele) = @_;
 931         return $valid{$ele};
 932 }
 933
 934 #
 935 # send a message state machine
 936 sub do_send_stuff
 937 {
 938         my $self = shift;
 939         my $line = shift;
 940         my @out;
 941
 942         if ($self->state eq 'send1') {
 943                 #  $DB::single = 1;
 944                 confess "local var gone missing" if !ref $self->{loc};
 945                 my $loc = $self->{loc};
 946                 if (my @ans = BadWords::check($line)) {
 947                         $self->{badcount} += @ans;
 948                         Log('msg', $self->call . " used badwords: @ans to @{$loc->{to}} in msg");
 949                         return ($self->msg('e17', @ans), $self->msg('m1'));
 950                 }
 951                 $loc->{subject} = $line;
 952                 $loc->{lines} = [];
 953                 $self->state('sendbody');
 954                 #push @out, $self->msg('sendbody');
 955                 push @out, $self->msg('m8');
 956         } elsif ($self->state eq 'sendbody') {
 957                 confess "local var gone missing" if !ref $self->{loc};
 958                 my $loc = $self->{loc};
 959                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
 960                         my $to;
 961
 962                         foreach $to (@{$loc->{to}}) {
 963                                 my $ref;
 964                                 my $systime = $main::systime;
 965                                 my $mycall = $main::mycall;
 966                                 $ref = DXMsg->alloc(DXMsg::next_transno('Msgno'),
 967                                                                         uc $to,
 968                                                                         exists $loc->{from} ? $loc->{from} : $self->call,
 969                                                                         $systime,
 970                                                                         $loc->{private},
 971                                                                         $loc->{subject},
 972                                                                         exists $loc->{origin} ? $loc->{origin} : $mycall,
 973                                                                         '0',
 974                                                                         $loc->{rrreq});
 975                                 $ref->swop_it($self->call);
 976                                 $ref->store($loc->{lines});
 977                                 $ref->add_dir();
 978                                 push @out, $self->msg('m11', $ref->{msgno}, $to);
 979                                 #push @out, "msgno $ref->{msgno} sent to $to";
 980                                 my $dxchan = DXChannel->get(uc $to);
 981                                 if ($dxchan) {
 982                                         if ($dxchan->is_user()) {
 983                                                 $dxchan->send($dxchan->msg('m9'));
 984                                         }
 985                                 }
 986                         }
 987
 988                         delete $loc->{lines};
 989                         delete $loc->{to};
 990                         delete $self->{loc};
 991                         $self->func(undef);
 992
 993                         $self->state('prompt');
 994                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
 995                         #push @out, $self->msg('sendabort');
 996                         push @out, $self->msg('m10');
 997                         delete $loc->{lines};
 998                         delete $loc->{to};
 999                         delete $self->{loc};
1000                         $self->func(undef);
1001                         $self->state('prompt');
1002                 } else {
1003                         if (my @ans = BadWords::check($line)) {
1004                                 $self->{badcount} += @ans;
1005                                 Log('msg', $self->call . " used badwords: @ans to @{$loc->{to}} subject: '$loc->{subject}' in msg");
1006                                 Log('msg', "line: $line");
1007                                 return ($self->msg('e17', @ans));
1008                         }
1009
1010                         # i.e. it ain't and end or abort, therefore store the line
1011                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1012                 }
1013         }
1014         return @out;
1015 }
1016
1017 # return the standard directory line for this ref
1018 sub dir
1019 {
1020         my $ref = shift;
1021         my $flag = $ref->read ? '-' : ' ';
1022         $flag = 'D' if $ref->delete;
1023         return sprintf "%6d%s%s%5d %8.8s %8.8s %-6.6s %5.5s %-30.30s",
1024                 $ref->msgno, $flag, $ref->private ? 'p' : ' ', $ref->size,
1025                         $ref->to, $ref->from, cldate($ref->t), ztime($ref->t), $ref->subject;
1026 }
1027
1028 # load the forward table
1029 sub load_forward
1030 {
1031         my @out;
1032         my $s = readfilestr($forwardfn);
1033         if ($s) {
1034                 eval $s;
1035                 push @out, $@ if $@;
1036         }
1037         return @out;
1038 }
1039
1040 # load the bad message table
1041 sub load_badmsg
1042 {
1043         my @out;
1044         my $s = readfilestr($badmsgfn);
1045         if ($s) {
1046                 eval $s;
1047                 push @out, $@ if $@;
1048         }
1049         return @out;
1050 }
1051
1052 # load the swop message table
1053 sub load_swop
1054 {
1055         my @out;
1056         my $s = readfilestr($swopfn);
1057         if ($s) {
1058                 eval $s;
1059                 push @out, $@ if $@;
1060         }
1061         return @out;
1062 }
1063
1064 #
1065 # forward that message or not according to the forwarding table
1066 # returns 1 for forward, 0 - to ignore
1067 #
1068
1069 sub forward_it
1070 {
1071         my $ref = shift;
1072         my $call = shift;
1073         my $i;
1074
1075         for ($i = 0; $i < @forward; $i += 5) {
1076                 my ($sort, $field, $pattern, $action, $bbs) = @forward[$i..($i+4)];
1077                 my $tested;
1078
1079                 # are we interested?
1080                 next if $ref->{private} && $sort ne 'P';
1081                 next if !$ref->{private} && $sort ne 'B';
1082
1083                 # select field
1084                 $tested = $ref->{to} if $field eq 'T';
1085                 $tested = $ref->{from} if $field eq 'F';
1086                 $tested = $ref->{origin} if $field eq 'O';
1087                 $tested = $ref->{subject} if $field eq 'S';
1088
1089                 if (!$pattern || $tested =~ m{$pattern}i) {
1090                         return 0 if $action eq 'I';
1091                         return 1 if !$bbs || grep $_ eq $call, @{$bbs};
1092                 }
1093         }
1094         return 0;
1095 }
1096
1097 sub dump_it
1098 {
1099         my $ref = shift;
1100         my $call = shift;
1101         my $i;
1102
1103         for ($i = 0; $i < @badmsg; $i += 3) {
1104                 my ($sort, $field, $pattern) = @badmsg[$i..($i+2)];
1105                 my $tested;
1106
1107                 # are we interested?
1108                 next if $ref->{private} && $sort ne 'P';
1109                 next if !$ref->{private} && $sort ne 'B';
1110
1111                 # select field
1112                 $tested = $ref->{to} if $field eq 'T';
1113                 $tested = $ref->{from} if $field eq 'F';
1114                 $tested = $ref->{origin} if $field eq 'O';
1115                 $tested = $ref->{subject} if $field eq 'S';
1116                 $tested = $call if $field eq 'I';
1117
1118                 if (!$pattern || $tested =~ m{$pattern}i) {
1119                         return 1;
1120                 }
1121         }
1122         return 0;
1123 }
1124
1125 sub swop_it
1126 {
1127         my $ref = shift;
1128         my $call = shift;
1129         my $i;
1130         my $count = 0;
1131
1132         for ($i = 0; $i < @swop; $i += 5) {
1133                 my ($sort, $field, $pattern, $tfield, $topattern) = @swop[$i..($i+4)];
1134                 my $tested;
1135                 my $swop;
1136                 my $old;
1137
1138                 # are we interested?
1139                 next if $ref->{private} && $sort ne 'P';
1140                 next if !$ref->{private} && $sort ne 'B';
1141
1142                 # select field
1143                 $tested = $ref->{to} if $field eq 'T';
1144                 $tested = $ref->{from} if $field eq 'F';
1145                 $tested = $ref->{origin} if $field eq 'O';
1146                 $tested = $ref->{subject} if $field eq 'S';
1147
1148                 # select swop field
1149                 $old = $swop = $ref->{to} if $tfield eq 'T';
1150                 $old = $swop = $ref->{from} if $tfield eq 'F';
1151                 $old = $swop = $ref->{origin} if $tfield eq 'O';
1152                 $old = $swop = $ref->{subject} if $tfield eq 'S';
1153
1154                 if ($tested =~ m{$pattern}i) {
1155                         if ($tested eq $swop) {
1156                                 $swop =~ s{$pattern}{$topattern}i;
1157                         } else {
1158                                 $swop = $topattern;
1159                         }
1160                         Log('msg', "Msg $ref->{msgno}: $tfield $old -> $swop");
1161                         Log('dbg', "Msg $ref->{msgno}: $tfield $old -> $swop");
1162                         $ref->{to} = $swop if $tfield eq 'T';
1163                         $ref->{from} = $swop if $tfield eq 'F';
1164                         $ref->{origin} = $swop if $tfield eq 'O';
1165                         $ref->{subject} = $swop if $tfield eq 'S';
1166                         ++$count;
1167                 }
1168         }
1169         return $count;
1170 }
1171
1172 # import any msgs in the import directory
1173 # the messages are in BBS format (but may have cluster extentions
1174 # so SB UK < GB7TLH is legal
1175 sub import_msgs
1176 {
1177         # are there any to do in this directory?
1178         return unless -d $importfn;
1179         unless (opendir(DIR, $importfn)) {
1180                 dbg("can\'t open $importfn $!") if isdbg('msg');
1181                 Log('msg', "can\'t open $importfn $!");
1182                 return;
1183         }
1184
1185         my @names = readdir(DIR);
1186         closedir(DIR);
1187         my $name;
1188         foreach $name (@names) {
1189                 next if $name =~ /^\./;
1190                 my $splitit = $name =~ /^split/;
1191                 my $fn = "$importfn/$name";
1192                 next unless -f $fn;
1193                 unless (open(MSG, $fn)) {
1194                         dbg("can\'t open import file $fn $!") if isdbg('msg');
1195                         Log('msg', "can\'t open import file $fn $!");
1196                         unlink($fn);
1197                         next;
1198                 }
1199                 my @msg = map { chomp; $_ } <MSG>;
1200                 close(MSG);
1201                 unlink($fn);
1202                 my @out = import_one($main::me, \@msg, $splitit);
1203                 Log('msg', @out);
1204         }
1205         queue_msg(0);
1206 }
1207
1208 # import one message as a list in bbs (as extended) mode
1209 # takes a reference to an array containing the whole message
1210 sub import_one
1211 {
1212         my $dxchan = shift;
1213         my $ref = shift;
1214         my $splitit = shift;
1215         my $private = '1';
1216         my $rr = '0';
1217         my $notincalls = 1;
1218         my $from = $dxchan->call;
1219         my $origin = $main::mycall;
1220         my @to;
1221         my @out;
1222
1223         # first line;
1224         my $line = shift @$ref;
1225         my @f = split /\b/, $line;
1226         @f = map {s/\s+//g; length $_ ? $_ : ()} @f;
1227
1228         unless (@f && $f[0] =~ /^(:?S|SP|SB|SEND)$/ ) {
1229                 my $m = "invalid first line in import '$line'";
1230                 dbg($m) if isdbg('msg');
1231                 return (1, $m);
1232         }
1233         while (@f) {
1234                 my $f = uc shift @f;
1235                 next if $f eq 'SEND';
1236
1237                 # private / noprivate / rr
1238                 if ($notincalls && ($f eq 'B' || $f eq 'SB' || $f =~ /^NOP/oi)) {
1239                         $private = '0';
1240                 } elsif ($notincalls && ($f eq 'P' || $f eq 'SP' || $f =~ /^PRI/oi)) {
1241                         ;
1242                 } elsif ($notincalls && ($f eq 'RR')) {
1243                         $rr = '1';
1244                 } elsif (($f =~ /^[\@\.\#\$]$/ || $f eq '.#') && @f) {       # this is bbs syntax, for AT
1245                         shift @f;
1246                 } elsif ($f eq '<' && @f) {     # this is bbs syntax  for from call
1247                         $from = uc shift @f;
1248                 } elsif ($f =~ /^\$/) {     # this is bbs syntax  for a bid
1249                         next;
1250                 } elsif ($f =~ /^<(\S+)/) {     # this is bbs syntax  for from call
1251                         $from = $1;
1252                 } elsif ($f =~ /^\$\S+/) {     # this is bbs syntax for bid
1253                         ;
1254                 } else {
1255
1256                         # callsign ?
1257                         $notincalls = 0;
1258
1259                         # is this callsign a distro?
1260                         my $fn = "$msgdir/distro/$f.pl";
1261                         if (-e $fn) {
1262                                 my $fh = new IO::File $fn;
1263                                 if ($fh) {
1264                                         local $/ = undef;
1265                                         my $s = <$fh>;
1266                                         $fh->close;
1267                                         my @call;
1268                                         @call = eval $s;
1269                                         return (1, "Error in Distro $f.pl:", $@) if $@;
1270                                         if (@call > 0) {
1271                                                 push @f, @call;
1272                                                 next;
1273                                         }
1274                                 }
1275                         }
1276
1277                         if (grep $_ eq $f, @DXMsg::badmsg) {
1278                                 push @out, $dxchan->msg('m3', $f);
1279                         } else {
1280                                 push @to, $f;
1281                         }
1282                 }
1283         }
1284
1285         # subject is the next line
1286         my $subject = shift @$ref;
1287
1288         # strip off trailing lines
1289         pop @$ref while (@$ref && $$ref[-1] =~ /^\s*$/);
1290
1291         # strip off /EX or /ABORT
1292         return ("aborted") if @$ref && $$ref[-1] =~ m{^/ABORT$}i;
1293         pop @$ref if (@$ref && $$ref[-1] =~ m{^/EX$}i);
1294
1295         # sort out any splitting that needs to be done
1296         my @chunk;
1297         if ($splitit) {
1298                 my $lth = 0;
1299                 my $lines = [];
1300                 for (@$ref) {
1301                         if ($lth >= $maxchunk || ($lth > $minchunk && /^\s*$/)) {
1302                                 push @chunk, $lines;
1303                                 $lines = [];
1304                                 $lth = 0;
1305                         }
1306                         push @$lines, $_;
1307                         $lth += length;
1308                 }
1309                 push @chunk, $lines if @$lines;
1310         } else {
1311                 push @chunk, $ref;
1312         }
1313
1314     # write all the messages away
1315         my $i;
1316         for ( $i = 0;  $i < @chunk; $i++) {
1317                 my $chunk = $chunk[$i];
1318                 my $ch_subject;
1319                 if (@chunk > 1) {
1320                         my $num = " [" . ($i+1) . "/" . scalar @chunk . "]";
1321                         $ch_subject = substr($subject, 0, 27 - length $num) .  $num;
1322                 } else {
1323                         $ch_subject = $subject;
1324                 }
1325                 my $to;
1326                 foreach $to (@to) {
1327                         my $systime = $main::systime;
1328                         my $mycall = $main::mycall;
1329                         my $mref = DXMsg->alloc(DXMsg::next_transno('Msgno'),
1330                                                                         $to,
1331                                                                         $from,
1332                                                                         $systime,
1333                                                                         $private,
1334                                                                         $ch_subject,
1335                                                                         $origin,
1336                                                                         '0',
1337                                                                         $rr);
1338                         $mref->swop_it($main::mycall);
1339                         $mref->store($chunk);
1340                         $mref->add_dir();
1341                         push @out, $dxchan->msg('m11', $mref->{msgno}, $to);
1342                         #push @out, "msgno $ref->{msgno} sent to $to";
1343                         my $todxchan = DXChannel->get(uc $to);
1344                         if ($todxchan) {
1345                                 if ($todxchan->is_user()) {
1346                                         $todxchan->send($todxchan->msg('m9'));
1347                                 }
1348                         }
1349                 }
1350         }
1351         return @out;
1352 }
1353
1354 no strict;
1355 sub AUTOLOAD
1356 {
1357         my $self = shift;
1358         my $name = $AUTOLOAD;
1359         return if $name =~ /::DESTROY$/;
1360         $name =~ s/.*:://o;
1361
1362         confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
1363         # this clever line of code creates a subroutine which takes over from autoload
1364         # from OO Perl - Conway
1365         *{$AUTOLOAD} = sub {@_ > 1 ? $_[0]->{$name} = $_[1] : $_[0]->{$name}} ;
1366         @_ ? $self->{$name} = shift : $self->{$name} ;
1367 }
1368
1369 1;
1370
1371 __END__