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 package DXMsg;
  11
  12 @ISA = qw(DXProt DXChannel);
  13
  14 use DXUtil;
  15 use DXChannel;
  16 use DXUser;
  17 use DXM;
  18 use DXCluster;
  19 use DXProtVars;
  20 use DXProtout;
  21 use DXDebug;
  22 use DXLog;
  23 use FileHandle;
  24 use Carp;
  25
  26 use strict;
  27 use vars qw(%work @msg $msgdir %valid %busy $maxage $last_clean);
  28
  29 %work = ();                                             # outstanding jobs
  30 @msg = ();                                              # messages we have
  31 %busy = ();                                             # station interlocks
  32 $msgdir = "$main::root/msg";    # directory contain the msgs
  33 $maxage = 30 * 86400;                   # the maximum age that a message shall live for if not marked
  34 $last_clean = 0;                                # last time we did a clean
  35
  36 %valid = (
  37                   fromnode => '9,From Node',
  38                   tonode => '9,To Node',
  39                   to => '0,To',
  40                   from => '0,From',
  41                   t => '0,Msg Time,cldatetime',
  42                   private => '9,Private',
  43                   subject => '0,Subject',
  44                   linesreq => '0,Lines per Gob',
  45                   rrreq => '9,Read Confirm',
  46                   origin => '0,Origin',
  47                   lines => '5,Data',
  48                   stream => '9,Stream No',
  49                   count => '9,Gob Linecnt',
  50                   file => '9,File?,yesno',
  51                   gotit => '9,Got it Nodes,parray',
  52                   lines => '9,Lines,parray',
  53                   read => '9,Times read',
  54                   size => '0,Size',
  55                   msgno => '0,Msgno',
  56                   keep => '0,Keep this?,yesno',
  57                  );
  58
  59 # allocate a new object
  60 # called fromnode, tonode, from, to, datetime, private?, subject, nolinesper
  61 sub alloc
  62 {
  63         my $pkg = shift;
  64         my $self = bless {}, $pkg;
  65         $self->{msgno} = shift;
  66         my $to = shift;
  67         #  $to =~ s/-\d+$//o;
  68         $self->{to} = $to;
  69         my $from = shift;
  70         $from =~ s/-\d+$//o;
  71         $self->{from} = uc $from;
  72         $self->{t} = shift;
  73         $self->{private} = shift;
  74         $self->{subject} = shift;
  75         $self->{origin} = shift;
  76         $self->{read} = shift;
  77         $self->{rrreq} = shift;
  78         $self->{gotit} = [];
  79
  80         return $self;
  81 }
  82
  83 sub workclean
  84 {
  85         my $ref = shift;
  86         delete $ref->{lines};
  87         delete $ref->{linesreq};
  88         delete $ref->{tonode};
  89         delete $ref->{fromnode};
  90         delete $ref->{stream};
  91         delete $ref->{lines};
  92         delete $ref->{file};
  93         delete $ref->{count};
  94 }
  95
  96 sub process
  97 {
  98         my ($self, $line) = @_;
  99         my @f = split /[\^\~]/, $line;
 100         my ($pcno) = $f[0] =~ /^PC(\d\d)/; # just get the number
 101
 102  SWITCH: {
 103                 if ($pcno == 28) {              # incoming message
 104                         my $t = cltounix($f[5], $f[6]);
 105                         my $stream = next_transno($f[2]);
 106                         my $ref = DXMsg->alloc($stream, uc $f[3], $f[4], $t, $f[7], $f[8], $f[13], '0', $f[11]);
 107
 108                         # fill in various forwarding state variables
 109                         $ref->{fromnode} = $f[2];
 110                         $ref->{tonode} = $f[1];
 111                         $ref->{rrreq} = $f[11];
 112                         $ref->{linesreq} = $f[10];
 113                         $ref->{stream} = $stream;
 114                         $ref->{count} = 0;      # no of lines between PC31s
 115                         dbg('msg', "new message from $f[4] to $f[3] '$f[8]' stream $stream\n");
 116                         $work{"$f[2]$stream"} = $ref; # store in work
 117                         $busy{$f[2]} = $ref; # set interlock
 118                         $self->send(DXProt::pc30($f[2], $f[1], $stream)); # send ack
 119                         last SWITCH;
 120                 }
 121
 122                 if ($pcno == 29) {              # incoming text
 123                         my $ref = $work{"$f[2]$f[3]"};
 124                         if ($ref) {
 125                                 push @{$ref->{lines}}, $f[4];
 126                                 $ref->{count}++;
 127                                 if ($ref->{count} >= $ref->{linesreq}) {
 128                                         $self->send(DXProt::pc31($f[2], $f[1], $f[3]));
 129                                         dbg('msg', "stream $f[3]: $ref->{count} lines received\n");
 130                                         $ref->{count} = 0;
 131                                 }
 132                         }
 133                         last SWITCH;
 134                 }
 135
 136                 if ($pcno == 30) {              # this is a incoming subject ack
 137                         my $ref = $work{$f[2]}; # note no stream at this stage
 138                         delete $work{$f[2]};
 139                         $ref->{stream} = $f[3];
 140                         $ref->{count} = 0;
 141                         $ref->{linesreq} = 5;
 142                         $work{"$f[2]$f[3]"} = $ref;     # new ref
 143                         dbg('msg', "incoming subject ack stream $f[3]\n");
 144                         $busy{$f[2]} = $ref; # interlock
 145                         $ref->{lines} = [];
 146                         push @{$ref->{lines}}, ($ref->read_msg_body);
 147                         $ref->send_tranche($self);
 148                         last SWITCH;
 149                 }
 150
 151                 if ($pcno == 31) {              # acknowledge a tranche of lines
 152                         my $ref = $work{"$f[2]$f[3]"};
 153                         if ($ref) {
 154                                 dbg('msg', "tranche ack stream $f[3]\n");
 155                                 $ref->send_tranche($self);
 156                         } else {
 157                                 $self->send(DXProt::pc42($f[2], $f[1], $f[3])); # unknown stream
 158                         }
 159                         last SWITCH;
 160                 }
 161
 162                 if ($pcno == 32) {              # incoming EOM
 163                         dbg('msg', "stream $f[3]: EOM received\n");
 164                         my $ref = $work{"$f[2]$f[3]"};
 165                         if ($ref) {
 166                                 $self->send(DXProt::pc33($f[2], $f[1], $f[3])); # acknowledge it
 167
 168                                 # get the next msg no - note that this has NOTHING to do with the stream number in PC protocol
 169                                 # store the file or message
 170                                 # remove extraneous rubbish from the hash
 171                                 # remove it from the work in progress vector
 172                                 # stuff it on the msg queue
 173                                 if ($ref->{lines} && @{$ref->{lines}} > 0) { # ignore messages with 0 lines
 174                                         if ($ref->{file}) {
 175                                                 $ref->store($ref->{lines});
 176                                         } else {
 177                                                 $ref->{msgno} = next_transno("Msgno");
 178                                                 push @{$ref->{gotit}}, $f[2]; # mark this up as being received
 179                                                 $ref->store($ref->{lines});
 180                                                 add_dir($ref);
 181                                                 my $dxchan = DXChannel->get($ref->{to});
 182                                                 $dxchan->send("New mail has arrived for you") if $dxchan;
 183                                                 Log('msg', "Message $ref->{msgno} from $ref->{from} received from $f[2] for $ref->{to}");
 184                                         }
 185                                 }
 186                                 $ref->stop_msg($self);
 187                                 queue_msg();
 188                         } else {
 189                                 $self->send(DXProt::pc42($f[2], $f[1], $f[3])); # unknown stream
 190                         }
 191                         queue_msg();
 192                         last SWITCH;
 193                 }
 194
 195                 if ($pcno == 33) {              # acknowledge the end of message
 196                         my $ref = $work{"$f[2]$f[3]"};
 197                         if ($ref) {
 198                                 if ($ref->{private}) { # remove it if it private and gone off site#
 199                                         Log('msg', "Message $ref->{msgno} from $ref->{from} sent to $f[2] and deleted");
 200                                         $ref->del_msg;
 201                                 } else {
 202                                         Log('msg', "Message $ref->{msgno} from $ref->{from} sent to $f[2]");
 203                                         push @{$ref->{gotit}}, $f[2]; # mark this up as being received
 204                                         $ref->store($ref->{lines});     # re- store the file
 205                                 }
 206                                 $ref->stop_msg($self);
 207                         } else {
 208                                 $self->send(DXProt::pc42($f[2], $f[1], $f[3])); # unknown stream
 209                         }
 210                         queue_msg();
 211                         last SWITCH;
 212                 }
 213
 214                 if ($pcno == 40) {              # this is a file request
 215                         $f[3] =~ s/\\/\//og; # change the slashes
 216                         $f[3] =~ s/\.//og;      # remove dots
 217                         $f[3] =~ s/^\///o;   # remove the leading /
 218                         $f[3] = lc $f[3];       # to lower case;
 219                         dbg('msg', "incoming file $f[3]\n");
 220                         last SWITCH if $f[3] =~ /^(perl|cmd|local|src|lib|include|sys|msg|connect)/; # prevent access to executables
 221
 222                         # create any directories
 223                         my @part = split /\//, $f[3];
 224                         my $part;
 225                         my $fn = "$main::root";
 226                         pop @part;                      # remove last part
 227                         foreach $part (@part) {
 228                                 $fn .= "/$part";
 229                                 next if -e $fn;
 230                                 last SWITCH if !mkdir $fn, 0777;
 231                                 dbg('msg', "created directory $fn\n");
 232                         }
 233                         my $stream = next_transno($f[2]);
 234                         my $ref = DXMsg->alloc($stream, "$main::root/$f[3]", $self->call, time, !$f[4], $f[3], ' ', '0', '0');
 235
 236                         # forwarding variables
 237                         $ref->{fromnode} = $f[1];
 238                         $ref->{tonode} = $f[2];
 239                         $ref->{linesreq} = $f[5];
 240                         $ref->{stream} = $stream;
 241                         $ref->{count} = 0;      # no of lines between PC31s
 242                         $ref->{file} = 1;
 243                         $work{"$f[2]$stream"} = $ref; # store in work
 244                         $self->send(DXProt::pc30($f[2], $f[1], $stream)); # send ack
 245
 246                         last SWITCH;
 247                 }
 248
 249                 if ($pcno == 42) {              # abort transfer
 250                         dbg('msg', "stream $f[3]: abort received\n");
 251                         my $ref = $work{"$f[2]$f[3]"};
 252                         if ($ref) {
 253                                 $ref->stop_msg($self);
 254                                 $ref = undef;
 255                         }
 256
 257                         last SWITCH;
 258                 }
 259         }
 260
 261          clean_old() if $main::systime - $last_clean > 3600 ; # clean the message queue
 262 }
 263
 264
 265 # store a message away on disc or whatever
 266 #
 267 # NOTE the second arg is a REFERENCE not a list
 268 sub store
 269 {
 270         my $ref = shift;
 271         my $lines = shift;
 272
 273         # we only proceed if there are actually any lines in the file
 274         if (!$lines || @{$lines} == 0) {
 275                 return;
 276         }
 277
 278         if ($ref->{file}) {                     # a file
 279                 dbg('msg', "To be stored in $ref->{to}\n");
 280
 281                 my $fh = new FileHandle "$ref->{to}", "w";
 282                 if (defined $fh) {
 283                         my $line;
 284                         foreach $line (@{$lines}) {
 285                                 print $fh "$line\n";
 286                         }
 287                         $fh->close;
 288                         dbg('msg', "file $ref->{to} stored\n");
 289                         Log('msg', "file $ref->{to} from $ref->{from} stored" );
 290                 } else {
 291                         confess "can't open file $ref->{to} $!";
 292                 }
 293         } else {                                        # a normal message
 294
 295                 # attempt to open the message file
 296                 my $fn = filename($ref->{msgno});
 297
 298                 dbg('msg', "To be stored in $fn\n");
 299
 300                 # now save the file, overwriting what's there, YES I KNOW OK! (I will change it if it's a problem)
 301                 my $fh = new FileHandle "$fn", "w";
 302                 if (defined $fh) {
 303                         my $rr = $ref->{rrreq} ? '1' : '0';
 304                         my $priv = $ref->{private} ? '1': '0';
 305                         print $fh "=== $ref->{msgno}^$ref->{to}^$ref->{from}^$ref->{t}^$priv^$ref->{subject}^$ref->{origin}^$ref->{read}^$rr\n";
 306                         print $fh "=== ", join('^', @{$ref->{gotit}}), "\n";
 307                         my $line;
 308                         $ref->{size} = 0;
 309                         foreach $line (@{$lines}) {
 310                                 $ref->{size} += (length $line) + 1;
 311                                 print $fh "$line\n";
 312                         }
 313                         $fh->close;
 314                         dbg('msg', "msg $ref->{msgno} stored\n");
 315                         Log('msg', "msg $ref->{msgno} from $ref->{from} to $ref->{to} stored" );
 316                 } else {
 317                         confess "can't open msg file $fn $!";
 318                 }
 319         }
 320 }
 321
 322 # delete a message
 323 sub del_msg
 324 {
 325         my $self = shift;
 326
 327         # remove it from the active message list
 328         @msg = map { $_ != $self ? $_ : () } @msg;
 329
 330         # belt and braces (one day I will ask someone if this is REALLY necessary)
 331         delete $self->{gotit};
 332         delete $self->{list};
 333
 334         # remove the file
 335         unlink filename($self->{msgno});
 336         dbg('msg', "deleting $self->{msgno}\n");
 337 }
 338
 339 # clean out old messages from the message queue
 340 sub clean_old
 341 {
 342         my $ref;
 343
 344         # mark old messages for deletion
 345         foreach $ref (@msg) {
 346                 if (!$ref->{keep} && $ref->{t} < $main::systime - $maxage) {
 347                         $ref->{deleteme} = 1;
 348                         delete $ref->{gotit};
 349                         delete $ref->{list};
 350                         unlink filename($ref->{msgno});
 351                         dbg('msg', "deleting old $ref->{msgno}\n");
 352                 }
 353         }
 354
 355         # remove them all from the active message list
 356         @msg = map { $_->{deleteme} ? () : $_ } @msg;
 357         $last_clean = $main::systime;
 358 }
 359
 360 # read in a message header
 361 sub read_msg_header
 362 {
 363         my $fn = shift;
 364         my $file;
 365         my $line;
 366         my $ref;
 367         my @f;
 368         my $size;
 369
 370         $file = new FileHandle;
 371         if (!open($file, $fn)) {
 372                 print "Error reading $fn $!\n";
 373                 return undef;
 374         }
 375         $size = -s $fn;
 376         $line = <$file>;                        # first line
 377         chomp $line;
 378         $size -= length $line;
 379         if (! $line =~ /^===/o) {
 380                 print "corrupt first line in $fn ($line)\n";
 381                 return undef;
 382         }
 383         $line =~ s/^=== //o;
 384         @f = split /\^/, $line;
 385         $ref = DXMsg->alloc(@f);
 386
 387         $line = <$file>;                        # second line
 388         chomp $line;
 389         $size -= length $line;
 390         if (! $line =~ /^===/o) {
 391                 print "corrupt second line in $fn ($line)\n";
 392                 return undef;
 393         }
 394         $line =~ s/^=== //o;
 395         $ref->{gotit} = [];
 396         @f = split /\^/, $line;
 397         push @{$ref->{gotit}}, @f;
 398         $ref->{size} = $size;
 399
 400         close($file);
 401
 402         return $ref;
 403 }
 404
 405 # read in a message header
 406 sub read_msg_body
 407 {
 408         my $self = shift;
 409         my $msgno = $self->{msgno};
 410         my $file;
 411         my $line;
 412         my $fn = filename($msgno);
 413         my @out;
 414
 415         $file = new FileHandle;
 416         if (!open($file, $fn)) {
 417                 print "Error reading $fn $!\n";
 418                 return undef;
 419         }
 420         chomp (@out = <$file>);
 421         close($file);
 422
 423         shift @out if $out[0] =~ /^=== /;
 424         shift @out if $out[0] =~ /^=== /;
 425         return @out;
 426 }
 427
 428 # send a tranche of lines to the other end
 429 sub send_tranche
 430 {
 431         my ($self, $dxchan) = @_;
 432         my @out;
 433         my $to = $self->{tonode};
 434         my $from = $self->{fromnode};
 435         my $stream = $self->{stream};
 436         my $i;
 437
 438         for ($i = 0; $i < $self->{linesreq} && $self->{count} < @{$self->{lines}}; $i++, $self->{count}++) {
 439                 push @out, DXProt::pc29($to, $from, $stream, ${$self->{lines}}[$self->{count}]);
 440 }
 441 push @out, DXProt::pc32($to, $from, $stream) if $i < $self->{linesreq};
 442 $dxchan->send(@out);
 443 }
 444
 445
 446         # find a message to send out and start the ball rolling
 447         sub queue_msg
 448 {
 449         my $sort = shift;
 450         my @nodelist = DXProt::get_all_ak1a();
 451         my $ref;
 452         my $clref;
 453         my $dxchan;
 454
 455         # bat down the message list looking for one that needs to go off site and whose
 456         # nearest node is not busy.
 457
 458         dbg('msg', "queue msg ($sort)\n");
 459         foreach $ref (@msg) {
 460                 # firstly, is it private and unread? if so can I find the recipient
 461                 # in my cluster node list offsite?
 462                 if ($ref->{private}) {
 463                         if ($ref->{read} == 0) {
 464                                 $clref = DXCluster->get($ref->{to});
 465                                 if ($clref && !grep { $clref->{dxchan} == $_ } DXCommandmode::get_all) {
 466                                         $dxchan = $clref->{dxchan};
 467                                         $ref->start_msg($dxchan) if $clref && !get_busy($dxchan->call);
 468                                 }
 469                         }
 470                 } elsif ($sort == undef) {
 471                         # otherwise we are dealing with a bulletin, compare the gotit list with
 472                         # the nodelist up above, if there are sites that haven't got it yet
 473                         # then start sending it - what happens when we get loops is anyone's
 474                         # guess, use (to, from, time, subject) tuple?
 475                         my $noderef;
 476                         foreach $noderef (@nodelist) {
 477                                 next if $noderef->call eq $main::mycall;
 478                                 next if grep { $_ eq $noderef->call } @{$ref->{gotit}};
 479
 480                                 # if we are here we have a node that doesn't have this message
 481                                 $ref->start_msg($noderef) if !get_busy($noderef->call);
 482                                 last;
 483                         }
 484                 }
 485
 486                 # if all the available nodes are busy then stop
 487                 last if @nodelist == scalar grep { get_busy($_->call) } @nodelist;
 488         }
 489 }
 490
 491 # start the message off on its travels with a PC28
 492 sub start_msg
 493 {
 494         my ($self, $dxchan) = @_;
 495
 496         dbg('msg', "start msg $self->{msgno}\n");
 497         $self->{linesreq} = 5;
 498         $self->{count} = 0;
 499         $self->{tonode} = $dxchan->call;
 500         $self->{fromnode} = $main::mycall;
 501         $busy{$dxchan->call} = $self;
 502         $work{"$self->{tonode}"} = $self;
 503         $dxchan->send(DXProt::pc28($self->{tonode}, $self->{fromnode}, $self->{to}, $self->{from}, $self->{t}, $self->{private}, $self->{subject}, $self->{origin}, $self->{rrreq}));
 504 }
 505
 506 # get the ref of a busy node
 507 sub get_busy
 508 {
 509         my $call = shift;
 510         return $busy{$call};
 511 }
 512
 513 # get the busy queue
 514 sub get_all_busy
 515 {
 516         return values %busy;
 517 }
 518
 519 # get the forwarding queue
 520 sub get_fwq
 521 {
 522         return values %work;
 523 }
 524
 525 # stop a message from continuing, clean it out, unlock interlocks etc
 526 sub stop_msg
 527 {
 528         my ($self, $dxchan) = @_;
 529         my $node = $dxchan->call;
 530
 531         dbg('msg', "stop msg $self->{msgno} stream $self->{stream}\n");
 532         delete $work{$node};
 533         delete $work{"$node$self->{stream}"};
 534         $self->workclean;
 535         delete $busy{$node};
 536 }
 537
 538 # get a new transaction number from the file specified
 539 sub next_transno
 540 {
 541         my $name = shift;
 542         $name =~ s/\W//og;                      # remove non-word characters
 543         my $fn = "$msgdir/$name";
 544         my $msgno;
 545
 546         my $fh = new FileHandle;
 547         if (sysopen($fh, $fn, O_RDWR|O_CREAT, 0666)) {
 548                 $fh->autoflush(1);
 549                 $msgno = $fh->getline;
 550                 chomp $msgno;
 551                 $msgno++;
 552                 seek $fh, 0, 0;
 553                 $fh->print("$msgno\n");
 554                 dbg('msg', "msgno $msgno allocated for $name\n");
 555                 $fh->close;
 556         } else {
 557                 confess "can't open $fn $!";
 558         }
 559         return $msgno;
 560 }
 561
 562 # initialise the message 'system', read in all the message headers
 563 sub init
 564 {
 565         my $dir = new FileHandle;
 566         my @dir;
 567         my $ref;
 568
 569         # read in the directory
 570         opendir($dir, $msgdir) or confess "can't open $msgdir $!";
 571         @dir = readdir($dir);
 572         closedir($dir);
 573
 574         for (sort @dir) {
 575                 next if /^\./o;
 576                 next if ! /^m\d+/o;
 577
 578                 $ref = read_msg_header("$msgdir/$_");
 579                 next if !$ref;
 580
 581                 # add the message to the available queue
 582                 add_dir($ref);
 583
 584         }
 585 }
 586
 587 # add the message to the directory listing
 588 sub add_dir
 589 {
 590         my $ref = shift;
 591         confess "tried to add a non-ref to the msg directory" if !ref $ref;
 592         push @msg, $ref;
 593 }
 594
 595 # return all the current messages
 596 sub get_all
 597 {
 598         return @msg;
 599 }
 600
 601 # get a particular message
 602 sub get
 603 {
 604         my $msgno = shift;
 605         for (@msg) {
 606                 return $_ if $_->{msgno} == $msgno;
 607                 last if $_->{msgno} > $msgno;
 608         }
 609         return undef;
 610 }
 611
 612 # return the official filename for a message no
 613 sub filename
 614 {
 615         return sprintf "$msgdir/m%06d", shift;
 616 }
 617
 618 #
 619 # return a list of valid elements
 620 #
 621
 622 sub fields
 623 {
 624         return keys(%valid);
 625 }
 626
 627 #
 628 # return a prompt for a field
 629 #
 630
 631 sub field_prompt
 632 {
 633         my ($self, $ele) = @_;
 634         return $valid{$ele};
 635 }
 636
 637 #
 638 # send a message state machine
 639 sub do_send_stuff
 640 {
 641         my $self = shift;
 642         my $line = shift;
 643         my @out;
 644
 645         if ($self->state eq 'send1') {
 646                 #  $DB::single = 1;
 647                 confess "local var gone missing" if !ref $self->{loc};
 648                 my $loc = $self->{loc};
 649                 $loc->{subject} = $line;
 650                 $loc->{lines} = [];
 651                 $self->state('sendbody');
 652                 #push @out, $self->msg('sendbody');
 653                 push @out, "Enter Message /EX (^Z) to send or /ABORT (^Y) to exit";
 654         } elsif ($self->state eq 'sendbody') {
 655                 confess "local var gone missing" if !ref $self->{loc};
 656                 my $loc = $self->{loc};
 657                 if ($line eq "\032" || uc $line eq "/EX") {
 658                         my $to;
 659
 660                         if (@{$loc->{lines}} > 0) {
 661                                 foreach $to (@{$loc->{to}}) {
 662                                         my $ref;
 663                                         my $systime = $main::systime;
 664                                         my $mycall = $main::mycall;
 665                                         $ref = DXMsg->alloc(DXMsg::next_transno('Msgno'),
 666                                                                                 uc $to,
 667                                                                                 $self->call,
 668                                                                                 $systime,
 669                                                                                 $loc->{private},
 670                                                                                 $loc->{subject},
 671                                                                                 $mycall,
 672                                                                                 '0',
 673                                                                                 $loc->{rrreq});
 674                                         $ref->store($loc->{lines});
 675                                         $ref->add_dir();
 676                                         #push @out, $self->msg('sendsent', $to);
 677                                         push @out, "msgno $ref->{msgno} sent to $to";
 678                                         my $dxchan = DXChannel->get(uc $to);
 679                                         if ($dxchan) {
 680                                                 if ($dxchan->is_user()) {
 681                                                         $dxchan->send("New mail has arrived for you");
 682                                                 }
 683                                         }
 684                                 }
 685                         }
 686                         delete $loc->{lines};
 687                         delete $loc->{to};
 688                         delete $self->{loc};
 689                         $self->state('prompt');
 690                         $self->func(undef);
 691                         DXMsg::queue_msg();
 692                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
 693                         #push @out, $self->msg('sendabort');
 694                         push @out, "aborted";
 695                         delete $loc->{lines};
 696                         delete $loc->{to};
 697                         delete $self->{loc};
 698                         $self->func(undef);
 699                         $self->state('prompt');
 700                 } else {
 701
 702                         # i.e. it ain't and end or abort, therefore store the line
 703                         push @{$loc->{lines}}, $line;
 704                 }
 705         }
 706         return (1, @out);
 707 }
 708
 709 # return the standard directory line for this ref
 710 sub dir
 711 {
 712         my $ref = shift;
 713         return sprintf "%6d%s%s%5d %8.8s %8.8s %-6.6s %5.5s %-30.30s",
 714                 $ref->msgno, $ref->read ? '-' : ' ', $ref->private ? 'p' : ' ', $ref->size,
 715                         $ref->to, $ref->from, cldate($ref->t), ztime($ref->t), $ref->subject;
 716 }
 717
 718 no strict;
 719 sub AUTOLOAD
 720 {
 721         my $self = shift;
 722         my $name = $AUTOLOAD;
 723         return if $name =~ /::DESTROY$/;
 724         $name =~ s/.*:://o;
 725
 726         confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
 727         @_ ? $self->{$name} = shift : $self->{$name} ;
 728 }
 729
 730 1;
 731
 732 __END__