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
17 # root of directory tree for this system
19 $root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
21 unshift @INC, "$root/perl"; # this IS the right way round!
22 unshift @INC, "$root/local";
50 @inqueue = (); # the main input queue, an array of hashes
51 $systime = 0; # the time now (in seconds)
52 $version = "1.22"; # the version no of the software
53 $starttime = 0; # the starting time of the cluster
55 # handle disconnections
59 return if !defined $dxchan;
60 $dxchan->disconnect();
63 # send a message to call on conn and disconnect
66 my ($conn, $call, $mess) = @_;
68 dbg('chan', "-> D $call $mess\n");
69 $conn->send_now("D$call|$mess");
71 dbg('chan', "-> Z $call bye\n");
72 $conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
75 # handle incoming messages
78 my ($conn, $msg, $err) = @_;
79 my $dxchan = DXChannel->get_by_cnum($conn); # get the dxconnnect object for this message
81 if (defined $err && $err) {
82 disconnect($dxchan) if defined $dxchan;
86 # set up the basic channel info - this needs a bit more thought - there is duplication here
87 if (!defined $dxchan) {
88 my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
90 # is there one already connected elsewhere in the cluster (and not a cluster)
91 my $user = DXUser->get($call);
93 if (($user->sort eq 'A' || $call eq $myalias) && !DXCluster->get_exact($call)) {
96 if (DXCluster->get($call) || DXChannel->get($call)) {
97 my $mess = DXM::msg($lang, $user->sort eq 'A' ? 'concluster' : 'conother', $call);
98 already_conn($conn, $call, $mess);
102 $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
104 if (DXCluster->get($call)) {
105 my $mess = DXM::msg($lang, 'conother', $call);
106 already_conn($conn, $call, $mess);
109 $user = DXUser->new($call);
113 if ($user->lockout) {
114 Log('DXCommand', "$call is locked out, disconnected");
115 $conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
120 $dxchan = DXCommandmode->new($call, $conn, $user) if ($user->sort eq 'U');
121 $dxchan = DXProt->new($call, $conn, $user) if ($user->sort eq 'A');
122 die "Invalid sort of user on $call = $sort" if !$dxchan;
125 # queue the message and the channel object for later processing
127 my $self = bless {}, "inqueue";
128 $self->{dxchan} = $dxchan;
129 $self->{data} = $msg;
130 push @inqueue, $self;
139 # cease running this program, close down all the connections nicely
145 Local::finish(); # end local processing
147 dbg('local', "Local::finish error $@") if $@;
149 foreach $dxchan (DXChannel->get_all()) {
150 disconnect($dxchan) unless $dxchan == $DXProt::me;
152 Log('cluster', "DXSpider V$version stopped");
156 # the reaper of children
159 $SIG{'CHLD'} = \&reap;
163 # this is where the input queue is dealt with and things are dispatched off to other parts of
167 my $self = shift @inqueue;
170 my $data = $self->{data};
171 my $dxchan = $self->{dxchan};
172 my ($sort, $call, $line) = $data =~ /^(\w)(\S+)\|(.*)$/;
174 # do the really sexy console interface bit! (Who is going to do the TK interface then?)
175 dbg('chan', "<- $sort $call $line\n") unless $sort eq 'D';
178 my $user = $dxchan->user;
179 if ($sort eq 'A' || $sort eq 'O') {
180 $dxchan->start($line, $sort);
181 } elsif ($sort eq 'I') {
182 die "\$user not defined for $call" if !defined $user;
185 $dxchan->normal($line);
187 disconnect($dxchan) if ($dxchan->{state} eq 'bye');
188 } elsif ($sort eq 'Z') {
190 } elsif ($sort eq 'D') {
191 ; # ignored (an echo)
193 print STDERR atime, " Unknown command letter ($sort) received from $call\n";
199 my $t = $systime - $starttime;
200 my $days = int $t / 86400;
202 my $hours = int $t / 3600;
204 my $mins = int $t / 60;
205 return sprintf "%d %02d:%02d", $days, $hours, $mins;
207 #############################################################
209 # The start of the main line of code
211 #############################################################
213 $starttime = $systime = time;
215 # open the debug file, set various FHs to be unbuffered
219 STDOUT->autoflush(1);
221 Log('cluster', "DXSpider V$version started");
224 print "DXSpider DX Cluster Version $version\nCopyright (c) 1998 Dirk Koopman G1TLH\n";
227 print "loading prefixes ...\n";
231 print "loading band data ...\n";
234 # initialise User file system
235 print "loading user file system ...\n";
236 DXUser->init($userfn);
238 # start listening for incoming messages/connects
239 print "starting listener ...\n";
240 Msg->new_server("$clusteraddr", $clusterport, \&login);
243 $SIG{'INT'} = \&cease;
244 $SIG{'TERM'} = \&cease;
245 $SIG{'HUP'} = 'IGNORE';
246 $SIG{'CHLD'} = \&reap;
248 # read in system messages
251 # read in command aliases
254 # initialise the Geomagnetic data engine
257 # initial the Spot stuff
260 # initialise the protocol engine
261 print "reading in duplicate spot and WWV info ...\n";
265 # put in a DXCluster node for us here so we can add users and take them away
266 DXNode->new(0, $mycall, 0, 1, $DXProt::myprot_version);
268 # read in any existing message headers and clean out old crap
269 print "reading existing message headers ...\n";
273 # read in any cron jobs
274 print "reading cron jobs ...\n";
277 # starting local stuff
278 print "doing local initialisation ...\n";
282 dbg('local', "Local::init error $@") if $@;
286 # print various flags
287 #print "useful info - \$^D: $^D \$^W: $^W \$^S: $^S \$^P: $^P\n";
289 # this, such as it is, is the main loop!
290 print "orft we jolly well go ...\n";
293 Msg->event_loop(1, 0.001);
295 process_inqueue(); # read in lines from the input queue and despatch them
297 # do timed stuff, ongoing processing happens one a second
298 if ($timenow != $systime) {
302 DXCron::process(); # do cron jobs
303 DXCommandmode::process(); # process ongoing command mode stuff
304 DXProt::process(); # process ongoing ak1a pcxx stuff
305 DXConnect::process();
307 Local::process(); # do any localised processing
309 dbg('local', "Local::process error $@") if $@;
312 last if --$decease <= 0;