1. Added msg command to allow the changing of To, From, Subject and so on the
[spider.git] / perl / DXMsg.pm
index 87129ea0ed1ce990391b2f182dbeffd6c545a93d..3262a44df98f7c13af304c97c8ece3d735154b0c 100644 (file)
@@ -26,12 +26,14 @@ use DXProtVars;
 use DXProtout;
 use DXDebug;
 use DXLog;
-use FileHandle;
+use IO::File;
+use Fcntl;
 use Carp;
 
 use strict;
 use vars qw(%work @msg $msgdir %valid %busy $maxage $last_clean
-                       @badmsg $badmsgfn $forwardfn @forward);
+                       @badmsg $badmsgfn $forwardfn @forward $timeout $waittime
+                   $queueinterval $lastq);
 
 %work = ();                                            # outstanding jobs
 @msg = ();                                             # messages we have
@@ -40,31 +42,38 @@ $msgdir = "$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 => '9,From Node',
-                 tonode => '9,To Node',
+                 fromnode => '5,From Node',
+                 tonode => '5,To Node',
                  to => '0,To',
                  from => '0,From',
                  t => '0,Msg Time,cldatetime',
-                 private => '9,Private',
+                 private => '5,Private',
                  subject => '0,Subject',
                  linesreq => '0,Lines per Gob',
-                 rrreq => '9,Read Confirm',
+                 rrreq => '5,Read Confirm',
                  origin => '0,Origin',
                  lines => '5,Data',
                  stream => '9,Stream No',
-                 count => '9,Gob Linecnt',
-                 file => '9,File?,yesno',
-                 gotit => '9,Got it Nodes,parray',
-                 lines => '9,Lines,parray',
-                 'read' => '9,Times read',
+                 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
@@ -94,6 +103,7 @@ sub alloc
        $self->{'read'} = shift;
        $self->{rrreq} = shift;
        $self->{gotit} = [];
+       $self->{lastt} = $main::systime;
     
        return $self;
 }
@@ -109,16 +119,57 @@ sub workclean
        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]);
@@ -134,6 +185,14 @@ sub process
                        $work{"$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;
                }
                
@@ -147,6 +206,10 @@ sub process
                                        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;
                }
@@ -164,7 +227,9 @@ sub process
                                $ref->{lines} = [];
                                push @{$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], $f[3])); # unknown stream
                        } 
                        last SWITCH;
@@ -175,7 +240,9 @@ sub process
                        if ($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;
@@ -201,7 +268,7 @@ sub process
                                                my $m;
                                                for $m (@msg) {
                                                        if ($ref->{subject} eq $m->{subject} && $ref->{t} == $m->{t} && $ref->{from} eq $m->{from}) {
-                                                               $ref->stop_msg($self);
+                                                               $ref->stop_msg($self->call);
                                                                my $msgno = $m->{msgno};
                                                                dbg('msg', "duplicate message to $msgno\n");
                                                                Log('msg', "duplicate message to $msgno");
@@ -211,7 +278,7 @@ sub process
                                                        
                                                # look for 'bad' to addresses 
                                                if (grep $ref->{to} eq $_, @badmsg) {
-                                                       $ref->stop_msg($self);
+                                                       $ref->stop_msg($self->call);
                                                        dbg('msg', "'Bad' TO address $ref->{to}");
                                                        Log('msg', "'Bad' TO address $ref->{to}");
                                                        return;
@@ -222,16 +289,16 @@ sub process
                                                $ref->store($ref->{lines});
                                                add_dir($ref);
                                                my $dxchan = DXChannel->get($ref->{to});
-                                               $dxchan->send($dxchan->msg('msgnew')) if $dxchan;
+                                               $dxchan->send($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);
-                               queue_msg(0);
+                               $ref->stop_msg($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);
+                       queue_msg(0);
                        last SWITCH;
                }
                
@@ -246,10 +313,13 @@ sub process
                                        push @{$ref->{gotit}}, $f[2]; # mark this up as being received
                                        $ref->store($ref->{lines});     # re- store the file
                                }
-                               $ref->stop_msg($self);
+                               $ref->stop_msg($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;
                }
@@ -283,6 +353,7 @@ sub process
                        $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 
                        
@@ -293,7 +364,7 @@ sub process
                        dbg('msg', "stream $f[3]: abort received\n");
                        my $ref = $work{"$f[2]$f[3]"};
                        if ($ref) {
-                               $ref->stop_msg($self);
+                               $ref->stop_msg($self->call);
                                $ref = undef;
                        }
                        
@@ -302,15 +373,14 @@ sub process
 
                if ($pcno == 49) {      # global delete on subject
                        for (@msg) {
-                               if ($_->{subject} eq $f[2]) {
+                               if ($_->{from} eq $f[1] && $_->{subject} eq $f[2]) {
                                        $_->del_msg();
-                                       Log('msg', "Message $_->{msgno} fully deleted by $f[1]");
+                                       Log('msg', "Message $_->{msgno} from $_->{from} ($_->{subject}) fully deleted");
+                                       DXProt::broadcast_ak1a($line, $self);
                                }
                        }
                }
        }
-       
-       clean_old() if $main::systime - $last_clean > 3600 ; # clean the message queue
 }
 
 
@@ -330,7 +400,7 @@ sub store
        if ($ref->{file}) {                     # a file
                dbg('msg', "To be stored in $ref->{to}\n");
                
-               my $fh = new FileHandle "$ref->{to}", "w";
+               my $fh = new IO::File "$ref->{to}", "w";
                if (defined $fh) {
                        my $line;
                        foreach $line (@{$lines}) {
@@ -350,7 +420,7 @@ sub store
                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 $fh = new FileHandle "$fn", "w";
+               my $fh = new IO::File "$fn", "w";
                if (defined $fh) {
                        my $rr = $ref->{rrreq} ? '1' : '0';
                        my $priv = $ref->{private} ? '1': '0';
@@ -419,7 +489,7 @@ sub read_msg_header
        my @f;
        my $size;
        
-       $file = new FileHandle;
+       $file = new IO::File;
        if (!open($file, $fn)) {
                print "Error reading $fn $!\n";
                return undef;
@@ -464,7 +534,7 @@ sub read_msg_body
        my $fn = filename($msgno);
        my @out;
        
-       $file = new FileHandle;
+       $file = new IO::File;
        if (!open($file, $fn)) {
                print "Error reading $fn $!\n";
                return undef;
@@ -515,6 +585,13 @@ sub queue_msg
        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 $ref->{waitt};
+               } 
+               
                if ($ref->{private}) {
                        if ($ref->{'read'} == 0) {
                                $clref = DXCluster->get_exact($ref->{to});
@@ -577,8 +654,9 @@ sub start_msg
        $self->{count} = 0;
        $self->{tonode} = $dxchan->call;
        $self->{fromnode} = $main::mycall;
-       $busy{$dxchan->call} = $self;
-       $work{"$self->{tonode}"} = $self;
+       $busy{$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}));
 }
 
@@ -604,12 +682,14 @@ sub get_fwq
 # stop a message from continuing, clean it out, unlock interlocks etc
 sub stop_msg
 {
-       my ($self, $dxchan) = @_;
-       my $node = $dxchan->call;
+       my $self = shift;
+       my $node = shift;
+       my $stream = $self->{stream} if exists $self->{stream};
+       
        
-       dbg('msg', "stop msg $self->{msgno} stream $self->{stream}\n");
+       dbg('msg', "stop msg $self->{msgno} -> node $node\n");
        delete $work{$node};
-       delete $work{"$node$self->{stream}"};
+       delete $work{"$node$stream"} if $stream;
        $self->workclean;
        delete $busy{$node};
 }
@@ -622,7 +702,7 @@ sub next_transno
        my $fn = "$msgdir/$name";
        my $msgno;
        
-       my $fh = new FileHandle;
+       my $fh = new IO::File;
        if (sysopen($fh, $fn, O_RDWR|O_CREAT, 0666)) {
                $fh->autoflush(1);
                $msgno = $fh->getline;
@@ -641,7 +721,7 @@ sub next_transno
 # initialise the message 'system', read in all the message headers
 sub init
 {
-       my $dir = new FileHandle;
+       my $dir = new IO::File;
        my @dir;
        my $ref;
 
@@ -742,7 +822,7 @@ sub do_send_stuff
                $loc->{lines} = [];
                $self->state('sendbody');
                #push @out, $self->msg('sendbody');
-               push @out, "Enter Message /EX (^Z) to send or /ABORT (^Y) to exit";
+               push @out, $self->msg('m8');
        } elsif ($self->state eq 'sendbody') {
                confess "local var gone missing" if !ref $self->{loc};
                my $loc = $self->{loc};
@@ -765,12 +845,12 @@ sub do_send_stuff
                                                                                $loc->{rrreq});
                                        $ref->store($loc->{lines});
                                        $ref->add_dir();
-                                       #push @out, $self->msg('sendsent', $to);
-                                       push @out, "msgno $ref->{msgno} sent to $to";
+                                       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("New mail has arrived for you");
+                                                       $dxchan->send($dxchan->msg('m9'));
                                                }
                                        }
                                }
@@ -779,11 +859,11 @@ sub do_send_stuff
                        delete $loc->{to};
                        delete $self->{loc};
                        $self->func(undef);
-                       DXMsg::queue_msg(0);
+                       
                        $self->state('prompt');
                } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
                        #push @out, $self->msg('sendabort');
-                       push @out, "aborted";
+                       push @out, $self->msg('m10');
                        delete $loc->{lines};
                        delete $loc->{to};
                        delete $self->{loc};