spider/perl/DXMsg.pm
djk adf3cc7462 started Database work
removed error checking in cluster.pl
added readfilestr
1999-11-05 15:24:59 +00:00

962 lines
24 KiB
Perl

#!/usr/bin/perl
#
# This module impliments the message handling for a dx cluster
#
# Copyright (c) 1998 Dirk Koopman G1TLH
#
# $Id$
#
#
# Notes for implementors:-
#
# PC28 field 11 is the RR required flag
# PC28 field 12 is a VIA routing (ie it is a node call)
#
package DXMsg;
@ISA = qw(DXProt DXChannel);
use DXUtil;
use DXChannel;
use DXUser;
use DXM;
use DXCluster;
use DXProtVars;
use DXProtout;
use DXDebug;
use DXLog;
use IO::File;
use Fcntl;
use Carp;
use strict;
use vars qw(%work @msg $msgdir %valid %busy $maxage $last_clean
@badmsg $badmsgfn $forwardfn @forward $timeout $waittime
$queueinterval $lastq);
%work = (); # outstanding jobs
@msg = (); # messages we have
%busy = (); # station interlocks
$msgdir = "$main::root/msg"; # directory contain the msgs
$maxage = 30 * 86400; # the maximum age that a message shall live for if not marked
$last_clean = 0; # last time we did a clean
@forward = (); # msg forward table
$timeout = 30*60; # forwarding timeout
$waittime = 60*60; # time an aborted outgoing message waits before trying again
$queueinterval = 2*60; # run the queue every 2 minutes
$lastq = 0;
$badmsgfn = "$msgdir/badmsg.pl"; # list of TO address we wont store
$forwardfn = "$msgdir/forward.pl"; # the forwarding table
%valid = (
fromnode => '5,From Node',
tonode => '5,To Node',
to => '0,To',
from => '0,From',
t => '0,Msg Time,cldatetime',
private => '5,Private',
subject => '0,Subject',
linesreq => '0,Lines per Gob',
rrreq => '5,Read Confirm',
origin => '0,Origin',
lines => '5,Data',
stream => '9,Stream No',
count => '5,Gob Linecnt',
file => '5,File?,yesno',
gotit => '5,Got it Nodes,parray',
lines => '5,Lines,parray',
'read' => '5,Times read',
size => '0,Size',
msgno => '0,Msgno',
keep => '0,Keep this?,yesno',
lastt => '5,Last processed,cldatetime',
waitt => '5,Wait until,cldatetime',
);
sub DESTROY
{
my $self = shift;
undef $self->{lines};
undef $self->{gotit};
}
# allocate a new object
# called fromnode, tonode, from, to, datetime, private?, subject, nolinesper
sub alloc
{
my $pkg = shift;
my $self = bless {}, $pkg;
$self->{msgno} = shift;
my $to = shift;
# $to =~ s/-\d+$//o;
$self->{to} = ($to eq $main::mycall) ? $main::myalias : $to;
my $from = shift;
$from =~ s/-\d+$//o;
$self->{from} = uc $from;
$self->{t} = shift;
$self->{private} = shift;
$self->{subject} = shift;
$self->{origin} = shift;
$self->{'read'} = shift;
$self->{rrreq} = shift;
$self->{gotit} = [];
$self->{lastt} = $main::systime;
return $self;
}
sub workclean
{
my $ref = shift;
delete $ref->{lines};
delete $ref->{linesreq};
delete $ref->{tonode};
delete $ref->{fromnode};
delete $ref->{stream};
delete $ref->{lines};
delete $ref->{file};
delete $ref->{count};
delete $ref->{lastt} if exists $ref->{lastt};
delete $ref->{waitt} if exists $ref->{waitt};
}
sub process
{
my ($self, $line) = @_;
# this is periodic processing
if (!$self || !$line) {
# wander down the work queue stopping any messages that have timed out
for (keys %busy) {
my $node = $_;
my $ref = $busy{$_};
if (exists $ref->{lastt} && $main::systime > $ref->{lastt} + $timeout) {
dbg('msg', "Timeout, stopping msgno: $ref->{msgno} -> $node");
$ref->stop_msg($node);
# delay any outgoing messages that fail
$ref->{waitt} = $main::systime + $waittime + rand(120) if $node ne $main::mycall;
}
}
# queue some message if the interval timer has gone off
if ($main::systime > $lastq + $queueinterval) {
queue_msg(0);
$lastq = $main::systime;
}
# clean the message queue
clean_old() if $main::systime - $last_clean > 3600 ;
return;
}
my @f = split /\^/, $line;
my ($pcno) = $f[0] =~ /^PC(\d\d)/; # just get the number
SWITCH: {
if ($pcno == 28) { # incoming message
# first look for any messages in the busy queue
# and cancel them this should both resolve timed out incoming messages
# and crossing of message between nodes, incoming messages have priority
if (exists $busy{$f[2]}) {
my $ref = $busy{$f[2]};
my $tonode = $ref->{tonode};
dbg('msg', "Busy, stopping msgno: $ref->{msgno} -> $f[2]");
$ref->stop_msg($self->call);
}
my $t = cltounix($f[5], $f[6]);
my $stream = next_transno($f[2]);
my $ref = DXMsg->alloc($stream, uc $f[3], $f[4], $t, $f[7], $f[8], $f[13], '0', $f[11]);
# fill in various forwarding state variables
$ref->{fromnode} = $f[2];
$ref->{tonode} = $f[1];
$ref->{rrreq} = $f[11];
$ref->{linesreq} = $f[10];
$ref->{stream} = $stream;
$ref->{count} = 0; # no of lines between PC31s
dbg('msg', "new message from $f[4] to $f[3] '$f[8]' stream $stream\n");
$work{"$f[2]$stream"} = $ref; # store in work
$busy{$f[2]} = $ref; # set interlock
$self->send(DXProt::pc30($f[2], $f[1], $stream)); # send ack
$ref->{lastt} = $main::systime;
# look to see whether this is a non private message sent to a known callsign
my $uref = DXUser->get_current($ref->{to});
if (iscallsign($ref->{to}) && !$ref->{private} && $uref && $uref->homenode) {
$ref->{private} = 1;
dbg('msg', "set bull to $ref->{to} to private");
}
last SWITCH;
}
if ($pcno == 29) { # incoming text
my $ref = $work{"$f[2]$f[3]"};
if ($ref) {
push @{$ref->{lines}}, $f[4];
$ref->{count}++;
if ($ref->{count} >= $ref->{linesreq}) {
$self->send(DXProt::pc31($f[2], $f[1], $f[3]));
dbg('msg', "stream $f[3]: $ref->{count} lines received\n");
$ref->{count} = 0;
}
$ref->{lastt} = $main::systime;
} else {
dbg('msg', "PC29 from unknown stream $f[3] from $f[2]" );
$self->send(DXProt::pc42($f[2], $f[1], $f[3])); # unknown stream
}
last SWITCH;
}
if ($pcno == 30) { # this is a incoming subject ack
my $ref = $work{$f[2]}; # note no stream at this stage
if ($ref) {
delete $work{$f[2]};
$ref->{stream} = $f[3];
$ref->{count} = 0;
$ref->{linesreq} = 5;
$work{"$f[2]$f[3]"} = $ref; # new ref
dbg('msg', "incoming subject ack stream $f[3]\n");
$busy{$f[2]} = $ref; # interlock
$ref->{lines} = [];
push @{$ref->{lines}}, ($ref->read_msg_body);
$ref->send_tranche($self);
$ref->{lastt} = $main::systime;
} else {
dbg('msg', "PC30 from unknown stream $f[3] from $f[2]" );
$self->send(DXProt::pc42($f[2], $f[1], $f[3])); # unknown stream
}
last SWITCH;
}
if ($pcno == 31) { # acknowledge a tranche of lines
my $ref = $work{"$f[2]$f[3]"};
if ($ref) {
dbg('msg', "tranche ack stream $f[3]\n");
$ref->send_tranche($self);
$ref->{lastt} = $main::systime;
} else {
dbg('msg', "PC31 from unknown stream $f[3] from $f[2]" );
$self->send(DXProt::pc42($f[2], $f[1], $f[3])); # unknown stream
}
last SWITCH;
}
if ($pcno == 32) { # incoming EOM
dbg('msg', "stream $f[3]: EOM received\n");
my $ref = $work{"$f[2]$f[3]"};
if ($ref) {
$self->send(DXProt::pc33($f[2], $f[1], $f[3])); # acknowledge it
# get the next msg no - note that this has NOTHING to do with the stream number in PC protocol
# store the file or message
# remove extraneous rubbish from the hash
# remove it from the work in progress vector
# stuff it on the msg queue
if ($ref->{lines} && @{$ref->{lines}} > 0) { # ignore messages with 0 lines
if ($ref->{file}) {
$ref->store($ref->{lines});
} else {
# does an identical message already exist?
my $m;
for $m (@msg) {
if ($ref->{subject} eq $m->{subject} && $ref->{t} == $m->{t} && $ref->{from} eq $m->{from} && $ref->{to} eq $m->{to}) {
$ref->stop_msg($self->call);
my $msgno = $m->{msgno};
dbg('msg', "duplicate message to $msgno\n");
Log('msg', "duplicate message to $msgno");
return;
}
}
# look for 'bad' to addresses
if (grep $ref->{to} eq $_, @badmsg) {
$ref->stop_msg($self->call);
dbg('msg', "'Bad' TO address $ref->{to}");
Log('msg', "'Bad' TO address $ref->{to}");
return;
}
$ref->{msgno} = next_transno("Msgno");
push @{$ref->{gotit}}, $f[2]; # mark this up as being received
$ref->store($ref->{lines});
add_dir($ref);
my $dxchan = DXChannel->get($ref->{to});
$dxchan->send($dxchan->msg('m9')) if $dxchan && $dxchan->is_user;
Log('msg', "Message $ref->{msgno} from $ref->{from} received from $f[2] for $ref->{to}");
}
}
$ref->stop_msg($self->call);
} else {
dbg('msg', "PC32 from unknown stream $f[3] from $f[2]" );
$self->send(DXProt::pc42($f[2], $f[1], $f[3])); # unknown stream
}
# queue_msg(0);
last SWITCH;
}
if ($pcno == 33) { # acknowledge the end of message
my $ref = $work{"$f[2]$f[3]"};
if ($ref) {
if ($ref->{private}) { # remove it if it private and gone off site#
Log('msg', "Message $ref->{msgno} from $ref->{from} sent to $f[2] and deleted");
$ref->del_msg;
} else {
Log('msg', "Message $ref->{msgno} from $ref->{from} sent to $f[2]");
push @{$ref->{gotit}}, $f[2]; # mark this up as being received
$ref->store($ref->{lines}); # re- store the file
}
$ref->stop_msg($self->call);
} else {
dbg('msg', "PC33 from unknown stream $f[3] from $f[2]" );
$self->send(DXProt::pc42($f[2], $f[1], $f[3])); # unknown stream
}
# send next one if present
queue_msg(0);
last SWITCH;
}
if ($pcno == 40) { # this is a file request
$f[3] =~ s/\\/\//og; # change the slashes
$f[3] =~ s/\.//og; # remove dots
$f[3] =~ s/^\///o; # remove the leading /
$f[3] = lc $f[3]; # to lower case;
dbg('msg', "incoming file $f[3]\n");
$f[3] = 'packclus/' . $f[3] unless $f[3] =~ /^packclus\//o;
# create any directories
my @part = split /\//, $f[3];
my $part;
my $fn = "$main::root";
pop @part; # remove last part
foreach $part (@part) {
$fn .= "/$part";
next if -e $fn;
last SWITCH if !mkdir $fn, 0777;
dbg('msg', "created directory $fn\n");
}
my $stream = next_transno($f[2]);
my $ref = DXMsg->alloc($stream, "$main::root/$f[3]", $self->call, time, !$f[4], $f[3], ' ', '0', '0');
# forwarding variables
$ref->{fromnode} = $f[1];
$ref->{tonode} = $f[2];
$ref->{linesreq} = $f[5];
$ref->{stream} = $stream;
$ref->{count} = 0; # no of lines between PC31s
$ref->{file} = 1;
$ref->{lastt} = $main::systime;
$work{"$f[2]$stream"} = $ref; # store in work
$self->send(DXProt::pc30($f[2], $f[1], $stream)); # send ack
last SWITCH;
}
if ($pcno == 42) { # abort transfer
dbg('msg', "stream $f[3]: abort received\n");
my $ref = $work{"$f[2]$f[3]"};
if ($ref) {
$ref->stop_msg($self->call);
$ref = undef;
}
last SWITCH;
}
if ($pcno == 49) { # global delete on subject
for (@msg) {
if ($_->{from} eq $f[1] && $_->{subject} eq $f[2]) {
$_->del_msg();
Log('msg', "Message $_->{msgno} from $_->{from} ($_->{subject}) fully deleted");
DXProt::broadcast_ak1a($line, $self);
}
}
}
}
}
# store a message away on disc or whatever
#
# NOTE the second arg is a REFERENCE not a list
sub store
{
my $ref = shift;
my $lines = shift;
# we only proceed if there are actually any lines in the file
# if (!$lines || @{$lines} == 0) {
# return;
# }
if ($ref->{file}) { # a file
dbg('msg', "To be stored in $ref->{to}\n");
my $fh = new IO::File "$ref->{to}", "w";
if (defined $fh) {
my $line;
foreach $line (@{$lines}) {
print $fh "$line\n";
}
$fh->close;
dbg('msg', "file $ref->{to} stored\n");
Log('msg', "file $ref->{to} from $ref->{from} stored" );
} else {
confess "can't open file $ref->{to} $!";
}
} else { # a normal message
# attempt to open the message file
my $fn = filename($ref->{msgno});
dbg('msg', "To be stored in $fn\n");
# now save the file, overwriting what's there, YES I KNOW OK! (I will change it if it's a problem)
my $fh = new IO::File "$fn", "w";
if (defined $fh) {
my $rr = $ref->{rrreq} ? '1' : '0';
my $priv = $ref->{private} ? '1': '0';
print $fh "=== $ref->{msgno}^$ref->{to}^$ref->{from}^$ref->{t}^$priv^$ref->{subject}^$ref->{origin}^$ref->{'read'}^$rr\n";
print $fh "=== ", join('^', @{$ref->{gotit}}), "\n";
my $line;
$ref->{size} = 0;
foreach $line (@{$lines}) {
$ref->{size} += (length $line) + 1;
print $fh "$line\n";
}
$fh->close;
dbg('msg', "msg $ref->{msgno} stored\n");
Log('msg', "msg $ref->{msgno} from $ref->{from} to $ref->{to} stored" );
} else {
confess "can't open msg file $fn $!";
}
}
}
# delete a message
sub del_msg
{
my $self = shift;
# remove it from the active message list
@msg = map { $_ != $self ? $_ : () } @msg;
# belt and braces (one day I will ask someone if this is REALLY necessary)
delete $self->{gotit};
delete $self->{list};
# remove the file
unlink filename($self->{msgno});
dbg('msg', "deleting $self->{msgno}\n");
}
# clean out old messages from the message queue
sub clean_old
{
my $ref;
# mark old messages for deletion
foreach $ref (@msg) {
if (!$ref->{keep} && $ref->{t} < $main::systime - $maxage) {
$ref->{deleteme} = 1;
delete $ref->{gotit};
delete $ref->{list};
unlink filename($ref->{msgno});
dbg('msg', "deleting old $ref->{msgno}\n");
}
}
# remove them all from the active message list
@msg = map { $_->{deleteme} ? () : $_ } @msg;
$last_clean = $main::systime;
}
# read in a message header
sub read_msg_header
{
my $fn = shift;
my $file;
my $line;
my $ref;
my @f;
my $size;
$file = new IO::File;
if (!open($file, $fn)) {
print "Error reading $fn $!\n";
return undef;
}
$size = -s $fn;
$line = <$file>; # first line
chomp $line;
$size -= length $line;
if (! $line =~ /^===/o) {
print "corrupt first line in $fn ($line)\n";
return undef;
}
$line =~ s/^=== //o;
@f = split /\^/, $line;
$ref = DXMsg->alloc(@f);
$line = <$file>; # second line
chomp $line;
$size -= length $line;
if (! $line =~ /^===/o) {
print "corrupt second line in $fn ($line)\n";
return undef;
}
$line =~ s/^=== //o;
$ref->{gotit} = [];
@f = split /\^/, $line;
push @{$ref->{gotit}}, @f;
$ref->{size} = $size;
close($file);
return $ref;
}
# read in a message header
sub read_msg_body
{
my $self = shift;
my $msgno = $self->{msgno};
my $file;
my $line;
my $fn = filename($msgno);
my @out;
$file = new IO::File;
if (!open($file, $fn)) {
print "Error reading $fn $!\n";
return undef;
}
chomp (@out = <$file>);
close($file);
shift @out if $out[0] =~ /^=== /;
shift @out if $out[0] =~ /^=== /;
return @out;
}
# send a tranche of lines to the other end
sub send_tranche
{
my ($self, $dxchan) = @_;
my @out;
my $to = $self->{tonode};
my $from = $self->{fromnode};
my $stream = $self->{stream};
my $lines = $self->{lines};
my ($c, $i);
for ($i = 0, $c = $self->{count}; $i < $self->{linesreq} && $c < @$lines; $i++, $c++) {
push @out, DXProt::pc29($to, $from, $stream, $lines->[$c]);
}
$self->{count} = $c;
push @out, DXProt::pc32($to, $from, $stream) if $i < $self->{linesreq};
$dxchan->send(@out);
}
# find a message to send out and start the ball rolling
sub queue_msg
{
my $sort = shift;
my $call = shift;
my $ref;
my $clref;
my @nodelist = DXProt::get_all_ak1a();
# bat down the message list looking for one that needs to go off site and whose
# nearest node is not busy.
dbg('msg', "queue msg ($sort)\n");
foreach $ref (@msg) {
# firstly, is it private and unread? if so can I find the recipient
# in my cluster node list offsite?
# ignore 'delayed' messages until their waiting time has expired
if (exists $ref->{waitt}) {
next if $ref->{waitt} > $main::systime;
delete $ref->{waitt};
}
# deal with routed private messages
my $noderef;
if ($ref->{private}) {
$clref = DXCluster->get_exact($ref->{to});
unless ($clref) { # otherwise look for a homenode
my $uref = DXUser->get($ref->{to});
my $hnode = $uref->homenode if $uref;
$clref = DXCluster->get_exact($hnode) if $hnode;
}
if ($clref && !grep { $clref->{dxchan} == $_ } DXCommandmode::get_all) {
next if $clref->call eq $main::mycall; # i.e. it lives here
$noderef = $clref->{dxchan};
$ref->start_msg($noderef) if !get_busy($noderef->call) && $noderef->state eq 'normal';
}
}
# otherwise we are dealing with a bulletin or forwarded private message
# compare the gotit list with
# the nodelist up above, if there are sites that haven't got it yet
# then start sending it - what happens when we get loops is anyone's
# guess, use (to, from, time, subject) tuple?
foreach $noderef (@nodelist) {
next if $noderef->call eq $main::mycall;
next if grep { $_ eq $noderef->call } @{$ref->{gotit}};
next unless $ref->forward_it($noderef->call); # check the forwarding file
# if we are here we have a node that doesn't have this message
$ref->start_msg($noderef) if !get_busy($noderef->call) && $noderef->state eq 'normal';
last;
}
# if all the available nodes are busy then stop
last if @nodelist == scalar grep { get_busy($_->call) } @nodelist;
}
}
# is there a message for me?
sub for_me
{
my $call = uc shift;
my $ref;
foreach $ref (@msg) {
# is it for me, private and unread?
if ($ref->{to} eq $call && $ref->{private}) {
return 1 if !$ref->{'read'};
}
}
return 0;
}
# start the message off on its travels with a PC28
sub start_msg
{
my ($self, $dxchan) = @_;
dbg('msg', "start msg $self->{msgno}\n");
$self->{linesreq} = 5;
$self->{count} = 0;
$self->{tonode} = $dxchan->call;
$self->{fromnode} = $main::mycall;
$busy{$self->{tonode}} = $self;
$work{$self->{tonode}} = $self;
$self->{lastt} = $main::systime;
$dxchan->send(DXProt::pc28($self->{tonode}, $self->{fromnode}, $self->{to}, $self->{from}, $self->{t}, $self->{private}, $self->{subject}, $self->{origin}, $self->{rrreq}));
}
# get the ref of a busy node
sub get_busy
{
my $call = shift;
return $busy{$call};
}
# get the busy queue
sub get_all_busy
{
return values %busy;
}
# get the forwarding queue
sub get_fwq
{
return values %work;
}
# stop a message from continuing, clean it out, unlock interlocks etc
sub stop_msg
{
my $self = shift;
my $node = shift;
my $stream = $self->{stream} if exists $self->{stream};
dbg('msg', "stop msg $self->{msgno} -> node $node\n");
delete $work{$node};
delete $work{"$node$stream"} if $stream;
$self->workclean;
delete $busy{$node};
}
# get a new transaction number from the file specified
sub next_transno
{
my $name = shift;
$name =~ s/\W//og; # remove non-word characters
my $fn = "$msgdir/$name";
my $msgno;
my $fh = new IO::File;
if (sysopen($fh, $fn, O_RDWR|O_CREAT, 0666)) {
$fh->autoflush(1);
$msgno = $fh->getline;
chomp $msgno;
$msgno++;
seek $fh, 0, 0;
$fh->print("$msgno\n");
dbg('msg', "msgno $msgno allocated for $name\n");
$fh->close;
} else {
confess "can't open $fn $!";
}
return $msgno;
}
# initialise the message 'system', read in all the message headers
sub init
{
my $dir = new IO::File;
my @dir;
my $ref;
# load various control files
my @in = load_badmsg();
print "@in\n" if @in;
@in = load_forward();
print "@in\n" if @in;
# read in the directory
opendir($dir, $msgdir) or confess "can't open $msgdir $!";
@dir = readdir($dir);
closedir($dir);
@msg = ();
for (sort @dir) {
next unless /^m\d+$/o;
$ref = read_msg_header("$msgdir/$_");
next unless $ref;
# delete any messages to 'badmsg.pl' places
if (grep $ref->{to} eq $_, @badmsg) {
dbg('msg', "'Bad' TO address $ref->{to}");
Log('msg', "'Bad' TO address $ref->{to}");
$ref->del_msg;
next;
}
# add the message to the available queue
add_dir($ref);
}
}
# add the message to the directory listing
sub add_dir
{
my $ref = shift;
confess "tried to add a non-ref to the msg directory" if !ref $ref;
push @msg, $ref;
}
# return all the current messages
sub get_all
{
return @msg;
}
# get a particular message
sub get
{
my $msgno = shift;
for (@msg) {
return $_ if $_->{msgno} == $msgno;
last if $_->{msgno} > $msgno;
}
return undef;
}
# return the official filename for a message no
sub filename
{
return sprintf "$msgdir/m%06d", shift;
}
#
# return a list of valid elements
#
sub fields
{
return keys(%valid);
}
#
# return a prompt for a field
#
sub field_prompt
{
my ($self, $ele) = @_;
return $valid{$ele};
}
#
# send a message state machine
sub do_send_stuff
{
my $self = shift;
my $line = shift;
my @out;
if ($self->state eq 'send1') {
# $DB::single = 1;
confess "local var gone missing" if !ref $self->{loc};
my $loc = $self->{loc};
$loc->{subject} = $line;
$loc->{lines} = [];
$self->state('sendbody');
#push @out, $self->msg('sendbody');
push @out, $self->msg('m8');
} elsif ($self->state eq 'sendbody') {
confess "local var gone missing" if !ref $self->{loc};
my $loc = $self->{loc};
if ($line eq "\032" || uc $line eq "/EX") {
my $to;
if (@{$loc->{lines}} > 0) {
foreach $to (@{$loc->{to}}) {
my $ref;
my $systime = $main::systime;
my $mycall = $main::mycall;
$ref = DXMsg->alloc(DXMsg::next_transno('Msgno'),
uc $to,
$self->call,
$systime,
$loc->{private},
$loc->{subject},
$mycall,
'0',
$loc->{rrreq});
$ref->store($loc->{lines});
$ref->add_dir();
push @out, $self->msg('m11', $ref->{msgno}, $to);
#push @out, "msgno $ref->{msgno} sent to $to";
my $dxchan = DXChannel->get(uc $to);
if ($dxchan) {
if ($dxchan->is_user()) {
$dxchan->send($dxchan->msg('m9'));
}
}
}
}
delete $loc->{lines};
delete $loc->{to};
delete $self->{loc};
$self->func(undef);
$self->state('prompt');
} elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
#push @out, $self->msg('sendabort');
push @out, $self->msg('m10');
delete $loc->{lines};
delete $loc->{to};
delete $self->{loc};
$self->func(undef);
$self->state('prompt');
} else {
# i.e. it ain't and end or abort, therefore store the line
push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
}
}
return (1, @out);
}
# return the standard directory line for this ref
sub dir
{
my $ref = shift;
return sprintf "%6d%s%s%5d %8.8s %8.8s %-6.6s %5.5s %-30.30s",
$ref->msgno, $ref->read ? '-' : ' ', $ref->private ? 'p' : ' ', $ref->size,
$ref->to, $ref->from, cldate($ref->t), ztime($ref->t), $ref->subject;
}
# load the forward table
sub load_forward
{
my @out;
my $s = readfilestr($forwardfn);
if ($s) {
eval $s;
push @out, $@ if $@;
}
return @out;
}
# load the bad message table
sub load_badmsg
{
my @out;
my $s = readfilestr($badmsgfn);
if ($s) {
eval $s;
push @out, $@ if $@;
}
return @out;
}
#
# forward that message or not according to the forwarding table
# returns 1 for forward, 0 - to ignore
#
sub forward_it
{
my $ref = shift;
my $call = shift;
my $i;
for ($i = 0; $i < @forward; $i += 5) {
my ($sort, $field, $pattern, $action, $bbs) = @forward[$i..($i+4)];
my $tested;
# are we interested?
next if $ref->{private} && $sort ne 'P';
next if !$ref->{private} && $sort ne 'B';
# select field
$tested = $ref->{to} if $field eq 'T';
my $at = $ref->{to} =~ /\@\s*(\S+)/;
$tested = $at if $field eq '\@';
$tested = $ref->{from} if $field eq 'F';
$tested = $ref->{origin} if $field eq 'O';
$tested = $ref->{subject} if $field eq 'S';
if (!$pattern || $tested =~ m{$pattern}i) {
return 0 if $action eq 'I';
return 1 if !$bbs || grep $_ eq $call, @{$bbs};
}
}
return 0;
}
no strict;
sub AUTOLOAD
{
my $self = shift;
my $name = $AUTOLOAD;
return if $name =~ /::DESTROY$/;
$name =~ s/.*:://o;
confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
@_ ? $self->{$name} = shift : $self->{$name} ;
}
1;
__END__