-#!/usr/bin/perl -w
-#
-# This is the DX cluster 'daemon'. It sits in the middle of its little
-# web of client routines sucking and blowing data where it may.
-#
-# Hence the name of 'spider' (although it may become 'dxspider')
-#
-# Copyright (c) 1998 Dirk Koopman G1TLH
-#
-# $Id$
-#
-
-require 5.004;
-
-# make sure that modules are searched in the order local then perl
-BEGIN {
- umask 002;
-
- # root of directory tree for this system
- $root = "/spider";
- $root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
-
- unshift @INC, "$root/perl"; # this IS the right way round!
- unshift @INC, "$root/local";
-
- # do some validation of the input
- die "The directory $root doesn't exist, please RTFM" unless -d $root;
- die "$root/local doesn't exist, please RTFM" unless -d "$root/local";
- die "$root/local/DXVars.pm doesn't exist, please RTFM" unless -e "$root/local/DXVars.pm";
-
- mkdir "$root/local_cmd", 0777 unless -d "$root/local_cmd";
-
-
- # try to create and lock a lockfile (this isn't atomic but
- # should do for now
- $lockfn = "$root/perl/cluster.lck"; # lock file name
- if (-e $lockfn) {
- open(CLLOCK, "$lockfn") or die "Can't open Lockfile ($lockfn) $!";
- my $pid = <CLLOCK>;
- chomp $pid;
- die "Lockfile ($lockfn) and process $pid exist, another cluster running?" if kill 0, $pid;
- close CLLOCK;
- }
- open(CLLOCK, ">$lockfn") or die "Can't open Lockfile ($lockfn) $!";
- print CLLOCK "$$\n";
- close CLLOCK;
-
- $is_win = ($^O =~ /^MS/ || $^O =~ /^OS-2/) ? 1 : 0; # is it Windows?
- $systime = time;
-}
-
-use DXVars;
-use Msg;
-use IntMsg;
-use Internet;
-use Listeners;
-use ExtMsg;
-use AGWConnect;
-use AGWMsg;
-use DXDebug;
-use DXLog;
-use DXLogPrint;
-use DXUtil;
-use DXChannel;
-use DXUser;
-use DXM;
-use DXCommandmode;
-use DXProtVars;
-use DXProtout;
-use DXProt;
-use QXProt;
-use DXMsg;
-use DXCron;
-use DXConnect;
-use DXBearing;
-use DXDb;
-use DXHash;
-use DXDupe;
-use Script;
-use Prefix;
-use Spot;
-use Bands;
-use Keps;
-use Minimuf;
-use Sun;
-use Geomag;
-use CmdAlias;
-use Filter;
-use AnnTalk;
-use BBS;
-use WCY;
-use BadWords;
-use Timer;
-use Route;
-use Route::Node;
-use Route::User;
-use Editable;
-use Mrtg;
-
-use Data::Dumper;
-use IO::File;
-use Fcntl ':flock';
-use POSIX ":sys_wait_h";
-
-use Local;
-
-package main;
-
-use strict;
-use vars qw(@inqueue $systime $version $starttime $lockfn @outstanding_connects
- $zombies $root @listeners $lang $myalias @debug $userfn $clusteraddr
- $clusterport $mycall $decease $is_win $routeroot $me $reqreg
- );
-
-@inqueue = (); # the main input queue, an array of hashes
-$systime = 0; # the time now (in seconds)
-$version = "1.50"; # the version no of the software
-$starttime = 0; # the starting time of the cluster
-#@outstanding_connects = (); # list of outstanding connects
-@listeners = (); # list of listeners
-$reqreg = 0; # 1 = registration required, 2 = deregister people
-
-use vars qw($VERSION $BRANCH $build $branch);
-$VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
-$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ || (0,0));
-$main::build += 10; # add an offset to make it bigger than last system
-$main::build += $VERSION;
-$main::branch += $BRANCH;
-
-
-# send a message to call on conn and disconnect
-sub already_conn
-{
- my ($conn, $call, $mess) = @_;
-
- $conn->disable_read(1);
- dbg("-> D $call $mess\n") if isdbg('chan');
- $conn->send_now("D$call|$mess");
- sleep(2);
- $conn->disconnect;
-}
-
-sub error_handler
-{
- my $dxchan = shift;
- $dxchan->{conn}->set_error(undef) if exists $dxchan->{conn};
- $dxchan->disconnect(1);
-}
-
-# handle incoming messages
-sub new_channel
-{
- my ($conn, $msg) = @_;
- my ($sort, $call, $line) = DXChannel::decode_input(0, $msg);
- return unless defined $sort;
-
- unless (is_callsign($call)) {
- already_conn($conn, $call, DXM::msg($lang, "illcall", $call));
- return;
- }
-
- # set up the basic channel info
- # is there one already connected to me - locally?
- my $user = DXUser->get_current($call);
- my $dxchan = DXChannel->get($call);
- if ($dxchan) {
- my $mess = DXM::msg($lang, ($user && $user->is_node) ? 'concluster' : 'conother', $call, $main::mycall);
- already_conn($conn, $call, $mess);
- return;
- }
-
- # is he locked out ?
- my $basecall = $call;
- $basecall =~ s/-\d+$//;
- my $baseuser = DXUser->get_current($basecall);
- my $lock = $user->lockout if $user;
- if ($baseuser && $baseuser->lockout || $lock) {
- if (!$user || !defined $lock || $lock) {
- my $host = $conn->{peerhost} || "unknown";
- Log('DXCommand', "$call on $host is locked out, disconnected");
- $conn->disconnect;
- return;
- }
- }
-
- if ($user) {
- $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
- } else {
- $user = DXUser->new($call);
- }
-
-
- # create the channel
- if ($user->wantnp) {
- if ($user->passphrase && $main::me->user->passphrase) {
- $dxchan = QXProt->new($call, $conn, $user);
- } else {
- unless ($user->passphrase) {
- Log('DXCommand', "$call using NP but has no passphrase");
- dbg("$call using NP but has no passphrase");
- }
- unless ($main::me->user->passphrase) {
- Log('DXCommand', "$main::mycall using NP but has no passphrase");
- dbg("$main::mycall using NP but has no passphrase");
- }
- already_conn($conn, $call, "Need to exchange passphrases");
- return;
- }
- } elsif ($user->is_node) {
- $dxchan = DXProt->new($call, $conn, $user);
- } elsif ($user->is_user) {
- $dxchan = DXCommandmode->new($call, $conn, $user);
- } elsif ($user->is_bbs) {
- $dxchan = BBS->new($call, $conn, $user);
- } else {
- die "Invalid sort of user on $call = $sort";
- }
-
- # check that the conn has a callsign
- $conn->conns($call) if $conn->isa('IntMsg');
-
- # set callbacks
- $conn->set_error(sub {error_handler($dxchan)});
- $conn->set_rproc(sub {my ($conn,$msg) = @_; rec($dxchan, $conn, $msg);});
- rec($dxchan, $conn, $msg);
-}
-
-sub rec
-{
- my ($dxchan, $conn, $msg) = @_;
-
- # queue the message and the channel object for later processing
- if (defined $msg) {
- my $self = bless {}, "inqueue";
- $self->{dxchan} = $dxchan;
- $self->{data} = $msg;
- push @inqueue, $self;
- }
-}
-
-sub login
-{
- return \&new_channel;
-}
-
-# cease running this program, close down all the connections nicely
-sub cease
-{
- my $dxchan;
-
- unless ($is_win) {
- $SIG{'TERM'} = 'IGNORE';
- $SIG{'INT'} = 'IGNORE';
- }
-
- DXUser::sync;
-
- eval {
- Local::finish(); # end local processing
- };
- dbg("Local::finish error $@") if $@;
-
- # disconnect nodes
- foreach $dxchan (DXChannel->get_all_nodes) {
- $dxchan->disconnect(2) unless $dxchan == $main::me;
- }
- Msg->event_loop(100, 0.01);
-
- # disconnect users
- foreach $dxchan (DXChannel->get_all_users) {
- $dxchan->disconnect;
- }
-
- # disconnect AGW
- AGWMsg::finish();
-
- # end everything else
- Msg->event_loop(100, 0.01);
- DXUser::finish();
- DXDupe::finish();
-
- # close all databases
- DXDb::closeall;
-
- # close all listeners
- foreach my $l (@listeners) {
- $l->close_server;
- }
-
- dbg("DXSpider version $version, build $build ended") if isdbg('chan');
- Log('cluster', "DXSpider V$version, build $build ended");
- dbgclose();
- Logclose();
- unlink $lockfn;
-# $SIG{__WARN__} = $SIG{__DIE__} = sub {my $a = shift; cluck($a); };
- exit(0);
-}
-
-# the reaper of children
-sub reap
-{
- my $cpid;
- while (($cpid = waitpid(-1, WNOHANG)) > 0) {
- dbg("cpid: $cpid") if isdbg('reap');
-# Msg->pid_gone($cpid);
- $zombies-- if $zombies > 0;
- }
- dbg("cpid: $cpid") if isdbg('reap');
-}
-
-# this is where the input queue is dealt with and things are dispatched off to other parts of
-# the cluster
-sub process_inqueue
-{
- while (@inqueue) {
- my $self = shift @inqueue;
- return if !$self;
-
- my $data = $self->{data};
- my $dxchan = $self->{dxchan};
- my $error;
- my ($sort, $call, $line) = DXChannel::decode_input($dxchan, $data);
- return unless defined $sort;
-
- # do the really sexy console interface bit! (Who is going to do the TK interface then?)
- dbg("<- $sort $call $line\n") if $sort ne 'D' && isdbg('chan');
- if ($self->{disconnecting}) {
- dbg('In disconnection, ignored');
- next;
- }
-
- # handle A records
- my $user = $dxchan->user;
- if ($sort eq 'A' || $sort eq 'O') {
- $dxchan->start($line, $sort);
- } elsif ($sort eq 'I') {
- die "\$user not defined for $call" if !defined $user;
-
- # normal input
- $dxchan->normal($line);
- } elsif ($sort eq 'Z') {
- $dxchan->disconnect;
- } elsif ($sort eq 'D') {
- ; # ignored (an echo)
- } elsif ($sort eq 'G') {
- $dxchan->enhanced($line);
- } else {
- print STDERR atime, " Unknown command letter ($sort) received from $call\n";
- }
- }
-}
-
-sub uptime
-{
- my $t = $systime - $starttime;
- my $days = int $t / 86400;
- $t -= $days * 86400;
- my $hours = int $t / 3600;
- $t -= $hours * 3600;
- my $mins = int $t / 60;
- return sprintf "%d %02d:%02d", $days, $hours, $mins;
-}
-
-sub AGWrestart
-{
- AGWMsg::init(\&new_channel);
-}
-
-#############################################################
-#
-# The start of the main line of code
-#
-#############################################################
-
-$starttime = $systime = time;
-$lang = 'en' unless $lang;
-
-# open the debug file, set various FHs to be unbuffered
-dbginit(\&DXCommandmode::broadcast_debug);
-foreach (@debug) {
- dbgadd($_);
-}
-STDOUT->autoflush(1);
-
-# calculate build number
-$build += $main::version;
-$build = "$build.$branch" if $branch;
-
-Log('cluster', "DXSpider V$version, build $build started");
-
-# banner
-dbg("Copyright (c) 1998-2002 Dirk Koopman G1TLH");
-dbg("DXSpider Version $version, build $build started");
-
-# load Prefixes
-dbg("loading prefixes ...");
-Prefix::load();
-
-# load band data
-dbg("loading band data ...");
-Bands::load();
-
-# initialise User file system
-dbg("loading user file system ...");
-DXUser->init($userfn, 1);
-
-# look for the sysop and the alias user and complain if they aren't there
-{
- my $ref = DXUser->get($mycall);
- die "$mycall missing, run the create_sysop.pl script and please RTFM" unless $ref && $ref->priv == 9;
- $ref = DXUser->get($myalias);
- die "$myalias missing, run the create_sysop.pl script and please RTFM" unless $ref && $ref->priv == 9;
-}
-
-# start listening for incoming messages/connects
-dbg("starting listeners ...");
-my $conn = IntMsg->new_server($clusteraddr, $clusterport, \&login);
-$conn->conns("Server $clusteraddr/$clusterport");
-push @listeners, $conn;
-dbg("Internal port: $clusteraddr $clusterport");
-foreach my $l (@main::listen) {
- $conn = ExtMsg->new_server($l->[0], $l->[1], \&login);
- $conn->conns("Server $l->[0]/$l->[1]");
- push @listeners, $conn;
- dbg("External Port: $l->[0] $l->[1]");
-}
-AGWrestart();
-
-# load bad words
-dbg("load badwords: " . (BadWords::load or "Ok"));
-
-# prime some signals
-unless ($DB::VERSION) {
- $SIG{INT} = $SIG{TERM} = sub { $decease = 1 };
-}
-
-unless ($is_win) {
- $SIG{HUP} = 'IGNORE';
- $SIG{CHLD} = sub { $zombies++ };
-
- $SIG{PIPE} = sub { dbg("Broken PIPE signal received"); };
- $SIG{IO} = sub { dbg("SIGIO received"); };
- $SIG{WINCH} = $SIG{STOP} = $SIG{CONT} = 'IGNORE';
- $SIG{KILL} = 'DEFAULT'; # as if it matters....
-
- # catch the rest with a hopeful message
- for (keys %SIG) {
- if (!$SIG{$_}) {
- # dbg("Catching SIG $_") if isdbg('chan');
- $SIG{$_} = sub { my $sig = shift; DXDebug::confess("Caught signal $sig"); };
- }
- }
-}
-
-# start dupe system
-DXDupe::init();
-
-# read in system messages
-DXM->init();
-
-# read in command aliases
-CmdAlias->init();
-
-# initialise the Geomagnetic data engine
-Geomag->init();
-WCY->init();
-
-# initial the Spot stuff
-Spot->init();
-
-# initialise the protocol engine
-dbg("reading in duplicate spot and WWV info ...");
-DXProt->init();
-QXProt->init();
-
-# put in a DXCluster node for us here so we can add users and take them away
-$routeroot = Route::Node->new($mycall, $version*100+5300, Route::here($main::me->here)|Route::conf($main::me->conf));
-
-# make sure that there is a routing OUTPUT node default file
-#unless (Filter::read_in('route', 'node_default', 0)) {
-# my $dxcc = $main::me->dxcc;
-# $Route::filterdef->cmd($main::me, 'route', 'accept', "node_default call $mycall" );
-#}
-
-# read in any existing message headers and clean out old crap
-dbg("reading existing message headers ...");
-DXMsg->init();
-DXMsg::clean_old();
-
-# read in any cron jobs
-dbg("reading cron jobs ...");
-DXCron->init();
-
-# read in database descriptors
-dbg("reading database descriptors ...");
-DXDb::load();
-
-# starting local stuff
-dbg("doing local initialisation ...");
-eval {
- Local::init();
-};
-dbg("Local::init error $@") if $@;
-
-# this, such as it is, is the main loop!
-dbg("orft we jolly well go ...");
-my $script = new Script "startup";
-$script->run($main::me) if $script;
-
-#open(DB::OUT, "|tee /tmp/aa");
-
-for (;;) {
-# $DB::trace = 1;
-
- Msg->event_loop(10, 0.010);
- my $timenow = time;
- process_inqueue(); # read in lines from the input queue and despatch them
-# $DB::trace = 0;
-
- # do timed stuff, ongoing processing happens one a second
- if ($timenow != $systime) {
- reap if $zombies;
- $systime = $timenow;
- DXCron::process(); # do cron jobs
- DXCommandmode::process(); # process ongoing command mode stuff
- DXProt::process(); # process ongoing ak1a pcxx stuff
- QXProt::process();
- DXConnect::process();
- DXMsg::process();
- DXDb::process();
- DXUser::process();
- DXDupe::process();
- AGWMsg::process();
-
- eval {
- Local::process(); # do any localised processing
- };
- dbg("Local::process error $@") if $@;
- }
- if ($decease) {
- last if --$decease <= 0;
- }
-}
-cease(0);
-exit(0);
-
-