3 # This is the DX cluster 'daemon'. It sits in the middle of its little
4 # web of client routines sucking and blowing data where it may.
6 # Hence the name of 'spider' (although it may become 'dxspider')
8 # Copyright (c) 1998 Dirk Koopman G1TLH
15 # make sure that modules are searched in the order local then perl
19 # root of directory tree for this system
21 $root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
23 unshift @INC, "$root/perl"; # this IS the right way round!
24 unshift @INC, "$root/local";
26 # do some validation of the input
27 die "The directory $root doesn't exist, please RTFM" unless -d $root;
28 die "$root/local doesn't exist, please RTFM" unless -d "$root/local";
29 die "$root/local/DXVars.pm doesn't exist, please RTFM" unless -e "$root/local/DXVars.pm";
31 mkdir "$root/local_cmd", 0777 unless -d "$root/local_cmd";
34 # try to create and lock a lockfile (this isn't atomic but
36 $lockfn = "$root/local/cluster.lck"; # lock file name
38 open(CLLOCK, "$lockfn") or die "Can't open Lockfile ($lockfn) $!";
41 die "Lockfile ($lockfn) and process $pid exist, another cluster running?" if kill 0, $pid;
44 open(CLLOCK, ">$lockfn") or die "Can't open Lockfile ($lockfn) $!";
48 $is_win = ($^O =~ /^MS/ || $^O =~ /^OS-2/) ? 1 : 0; # is it Windows?
107 use POSIX ":sys_wait_h";
114 use vars qw(@inqueue $systime $version $starttime $lockfn @outstanding_connects
115 $zombies $root @listeners $lang $myalias @debug $userfn $clusteraddr
116 $clusterport $mycall $decease $is_win $routeroot $me $reqreg
119 @inqueue = (); # the main input queue, an array of hashes
120 $systime = 0; # the time now (in seconds)
121 $version = "1.51"; # the version no of the software
122 $starttime = 0; # the starting time of the cluster
123 #@outstanding_connects = (); # list of outstanding connects
124 @listeners = (); # list of listeners
125 $reqreg = 0; # 1 = registration required, 2 = deregister people
127 use vars qw($VERSION $BRANCH $build $branch);
128 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
129 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ || (0,0));
130 $main::build += 4; # add an offset to make it bigger than last system
131 $main::build += $VERSION;
132 $main::branch += $BRANCH;
135 # send a message to call on conn and disconnect
138 my ($conn, $call, $mess) = @_;
140 $conn->disable_read(1);
141 dbg("-> D $call $mess\n") if isdbg('chan');
142 $conn->send_now("D$call|$mess");
150 $dxchan->{conn}->set_error(undef) if exists $dxchan->{conn};
151 $dxchan->disconnect(1);
154 # handle incoming messages
157 my ($conn, $msg) = @_;
158 my ($sort, $call, $line) = DXChannel::decode_input(0, $msg);
159 return unless defined $sort;
161 unless (is_callsign($call)) {
162 already_conn($conn, $call, DXM::msg($lang, "illcall", $call));
166 # set up the basic channel info
167 # is there one already connected to me - locally?
168 my $user = DXUser->get_current($call);
169 my $dxchan = DXChannel->get($call);
171 my $mess = DXM::msg($lang, ($user && $user->is_node) ? 'concluster' : 'conother', $call, $main::mycall);
172 already_conn($conn, $call, $mess);
177 my $basecall = $call;
178 $basecall =~ s/-\d+$//;
179 my $baseuser = DXUser->get_current($basecall);
180 my $lock = $user->lockout if $user;
181 if ($baseuser && $baseuser->lockout || $lock) {
182 if (!$user || !defined $lock || $lock) {
183 my $host = $conn->{peerhost} || "unknown";
184 Log('DXCommand', "$call on $host is locked out, disconnected");
191 $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
193 $user = DXUser->new($call);
199 if ($user->passphrase && $main::me->user->passphrase) {
200 $dxchan = QXProt->new($call, $conn, $user);
202 unless ($user->passphrase) {
203 Log('DXCommand', "$call using NP but has no passphrase");
204 dbg("$call using NP but has no passphrase");
206 unless ($main::me->user->passphrase) {
207 Log('DXCommand', "$main::mycall using NP but has no passphrase");
208 dbg("$main::mycall using NP but has no passphrase");
210 already_conn($conn, $call, "Need to exchange passphrases");
213 } elsif ($user->is_node) {
214 $dxchan = DXProt->new($call, $conn, $user);
215 } elsif ($user->is_user) {
216 $dxchan = DXCommandmode->new($call, $conn, $user);
217 } elsif ($user->is_bbs) {
218 $dxchan = BBS->new($call, $conn, $user);
220 die "Invalid sort of user on $call = $sort";
223 # check that the conn has a callsign
224 $conn->conns($call) if $conn->isa('IntMsg');
227 $conn->set_error(sub {error_handler($dxchan)});
228 $conn->set_rproc(sub {my ($conn,$msg) = @_; rec($dxchan, $conn, $msg);});
229 rec($dxchan, $conn, $msg);
234 my ($dxchan, $conn, $msg) = @_;
236 # queue the message and the channel object for later processing
238 my $self = bless {}, "inqueue";
239 $self->{dxchan} = $dxchan;
240 $self->{data} = $msg;
241 push @inqueue, $self;
245 # remove any outstanding entries on the inqueue after a disconnection (usually)
249 @inqueue = grep {$_->{dxchan} != $dxchan} @inqueue;
254 return \&new_channel;
257 # cease running this program, close down all the connections nicely
263 $SIG{'TERM'} = 'IGNORE';
264 $SIG{'INT'} = 'IGNORE';
270 Local::finish(); # end local processing
272 dbg("Local::finish error $@") if $@;
275 foreach $dxchan (DXChannel->get_all_nodes) {
276 $dxchan->disconnect(2) unless $dxchan == $main::me;
278 Msg->event_loop(100, 0.01);
281 foreach $dxchan (DXChannel->get_all_users) {
288 # disconnect UDP customers
291 # end everything else
292 Msg->event_loop(100, 0.01);
296 # close all databases
299 # close all listeners
300 foreach my $l (@listeners) {
304 dbg("DXSpider version $version, build $build ended") if isdbg('chan');
305 Log('cluster', "DXSpider V$version, build $build ended");
309 # $SIG{__WARN__} = $SIG{__DIE__} = sub {my $a = shift; cluck($a); };
313 # the reaper of children
317 while (($cpid = waitpid(-1, WNOHANG)) > 0) {
318 dbg("cpid: $cpid") if isdbg('reap');
319 # Msg->pid_gone($cpid);
320 $zombies-- if $zombies > 0;
322 dbg("cpid: $cpid") if isdbg('reap');
325 # this is where the input queue is dealt with and things are dispatched off to other parts of
330 my $self = shift @inqueue;
333 my $data = $self->{data};
334 my $dxchan = $self->{dxchan};
336 my ($sort, $call, $line) = DXChannel::decode_input($dxchan, $data);
337 return unless defined $sort;
339 # do the really sexy console interface bit! (Who is going to do the TK interface then?)
340 dbg("<- $sort $call $line") if $sort ne 'D' && isdbg('chan');
341 if ($self->{disconnecting}) {
342 dbg('In disconnection, ignored');
347 my $user = $dxchan->user;
348 if ($sort eq 'A' || $sort eq 'O') {
349 $dxchan->start($line, $sort);
350 } elsif ($sort eq 'I') {
351 die "\$user not defined for $call" if !defined $user;
354 $dxchan->normal($line);
355 } elsif ($sort eq 'Z') {
357 } elsif ($sort eq 'D') {
358 ; # ignored (an echo)
359 } elsif ($sort eq 'G') {
360 $dxchan->enhanced($line);
362 print STDERR atime, " Unknown command letter ($sort) received from $call\n";
369 my $t = $systime - $starttime;
370 my $days = int $t / 86400;
372 my $hours = int $t / 3600;
374 my $mins = int $t / 60;
375 return sprintf "%d %02d:%02d", $days, $hours, $mins;
380 AGWMsg::init(\&new_channel);
383 #############################################################
385 # The start of the main line of code
387 #############################################################
389 $starttime = $systime = time;
390 $lang = 'en' unless $lang;
392 # open the debug file, set various FHs to be unbuffered
393 dbginit(\&DXCommandmode::broadcast_debug);
397 STDOUT->autoflush(1);
399 # calculate build number
400 $build += $main::version;
401 $build = "$build.$branch" if $branch;
403 Log('cluster', "DXSpider V$version, build $build started");
406 dbg("Copyright (c) 1998-2002 Dirk Koopman G1TLH");
407 dbg("DXSpider Version $version, build $build started");
410 dbg("loading prefixes ...");
412 my $r = Prefix::init();
416 dbg("loading band data ...");
419 # initialise User file system
420 dbg("loading user file system ...");
421 DXUser->init($userfn, 1);
423 # look for the sysop and the alias user and complain if they aren't there
425 my $ref = DXUser->get($mycall);
426 die "$mycall missing, run the create_sysop.pl script and please RTFM" unless $ref && $ref->priv == 9;
427 $ref = DXUser->get($myalias);
428 die "$myalias missing, run the create_sysop.pl script and please RTFM" unless $ref && $ref->priv == 9;
431 # start listening for incoming messages/connects
432 dbg("starting listeners ...");
433 my $conn = IntMsg->new_server($clusteraddr, $clusterport, \&login);
434 $conn->conns("Server $clusteraddr/$clusterport");
435 push @listeners, $conn;
436 dbg("Internal port: $clusteraddr $clusterport");
437 foreach my $l (@main::listen) {
438 $conn = ExtMsg->new_server($l->[0], $l->[1], \&login);
439 $conn->conns("Server $l->[0]/$l->[1]");
440 push @listeners, $conn;
441 dbg("External Port: $l->[0] $l->[1]");
444 dbg("AGW Listener") if $AGWMsg::enable;
447 dbg("UDP Listener") if $UDPMsg::enable;
448 UDPMsg::init(\&new_channel);
451 dbg("load badwords: " . (BadWords::load or "Ok"));
454 unless ($DB::VERSION) {
455 $SIG{INT} = $SIG{TERM} = sub { $decease = 1 };
459 $SIG{HUP} = 'IGNORE';
460 $SIG{CHLD} = sub { $zombies++ };
462 $SIG{PIPE} = sub { dbg("Broken PIPE signal received"); };
463 $SIG{IO} = sub { dbg("SIGIO received"); };
464 $SIG{WINCH} = $SIG{STOP} = $SIG{CONT} = 'IGNORE';
465 $SIG{KILL} = 'DEFAULT'; # as if it matters....
467 # catch the rest with a hopeful message
470 # dbg("Catching SIG $_") if isdbg('chan');
471 $SIG{$_} = sub { my $sig = shift; DXDebug::confess("Caught signal $sig"); };
477 dbg("Starting Dupe system");
480 # read in system messages
481 dbg("Read in Messages");
484 # read in command aliases
485 dbg("Read in Aliases");
488 # initialise the Geomagnetic data engine
494 # initial the Spot stuff
495 dbg("Starting DX Spot system");
498 # initialise the protocol engine
499 dbg("Start Protocol Engines ...");
503 # put in a DXCluster node for us here so we can add users and take them away
504 $routeroot = Route::Node->new($mycall, $version*100+5300, Route::here($main::me->here)|Route::conf($main::me->conf));
506 # make sure that there is a routing OUTPUT node default file
507 #unless (Filter::read_in('route', 'node_default', 0)) {
508 # my $dxcc = $main::me->dxcc;
509 # $Route::filterdef->cmd($main::me, 'route', 'accept', "node_default call $mycall" );
512 # read in any existing message headers and clean out old crap
513 dbg("reading existing message headers ...");
517 # read in any cron jobs
518 dbg("reading cron jobs ...");
521 # read in database descriptors
522 dbg("reading database descriptors ...");
525 # starting local stuff
526 dbg("doing local initialisation ...");
531 dbg("Local::init error $@") if $@;
533 # this, such as it is, is the main loop!
534 dbg("orft we jolly well go ...");
535 my $script = new Script "startup";
536 $script->run($main::me) if $script;
538 #open(DB::OUT, "|tee /tmp/aa");
543 Msg->event_loop(10, 0.010);
545 process_inqueue(); # read in lines from the input queue and despatch them
548 # do timed stuff, ongoing processing happens one a second
549 if ($timenow != $systime) {
552 DXCron::process(); # do cron jobs
553 DXCommandmode::process(); # process ongoing command mode stuff
554 DXProt::process(); # process ongoing ak1a pcxx stuff
556 DXConnect::process();
563 # this where things really start to happen (in DXSpider 2)
567 Local::process(); # do any localised processing
569 dbg("Local::process error $@") if $@;
572 last if --$decease <= 0;