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
13 # make sure that modules are searched in the order local then perl
15 # root of directory tree for this system
17 $root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
19 unshift @INC, "$root/perl"; # this IS the right way round!
20 unshift @INC, "$root/local";
23 # $Exporter::Verbose = 1;
49 @inqueue = (); # the main input queue, an array of hashes
50 $systime = 0; # the time now (in seconds)
51 $version = "1.13"; # the version no of the software
52 $starttime = 0; # the starting time of the cluster
54 # handle disconnections
58 return if !defined $dxchan;
59 $dxchan->disconnect();
62 # send a message to call on conn and disconnect
65 my ($conn, $call, $mess) = @_;
67 dbg('chan', "-> D $call $mess\n");
68 $conn->send_now("D$call|$mess");
70 dbg('chan', "-> Z $call bye\n");
71 $conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
74 # handle incoming messages
77 my ($conn, $msg, $err) = @_;
78 my $dxchan = DXChannel->get_by_cnum($conn); # get the dxconnnect object for this message
80 if (defined $err && $err) {
81 disconnect($dxchan) if defined $dxchan;
85 # set up the basic channel info - this needs a bit more thought - there is duplication here
86 if (!defined $dxchan) {
87 my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
89 # is there one already connected elsewhere in the cluster (and not a cluster)
90 my $user = DXUser->get($call);
92 if ($user->sort eq 'A' && !DXCluster->get_exact($call)) {
94 } elsif ($user->sort eq 'U' && $call eq $main::myalias && !DXCluster->get_exact($call)) {
97 if (DXChannel->get($call)) {
98 my $mess = DXM::msg($lang, $user->sort eq 'A' ? 'concluster' : 'conother', $call);
99 already_conn($conn, $call, $mess);
104 if (DXChannel->get($call)) {
105 my $mess = DXM::msg($lang, 'conother', $call);
106 already_conn($conn, $call, $mess);
112 # the user MAY have an SSID if local, but otherwise doesn't
113 my $user = DXUser->get($call);
114 if (!defined $user) {
115 $user = DXUser->new($call);
117 $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
121 if ($user->lockout) {
122 Log('DXCommand', "$call is locked out, disconnected");
123 $conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
128 $dxchan = DXCommandmode->new($call, $conn, $user) if ($user->sort eq 'U');
129 $dxchan = DXProt->new($call, $conn, $user) if ($user->sort eq 'A');
130 die "Invalid sort of user on $call = $sort" if !$dxchan;
133 # queue the message and the channel object for later processing
135 my $self = bless {}, "inqueue";
136 $self->{dxchan} = $dxchan;
137 $self->{data} = $msg;
138 push @inqueue, $self;
147 # cease running this program, close down all the connections nicely
151 foreach $dxchan (DXChannel->get_all()) {
154 Log('cluster', "DXSpider V$version stopped");
158 # the reaper of children
164 # this is where the input queue is dealt with and things are dispatched off to other parts of
168 my $self = shift @inqueue;
171 my $data = $self->{data};
172 my $dxchan = $self->{dxchan};
173 my ($sort, $call, $line) = $data =~ /^(\w)(\S+)\|(.*)$/;
175 # do the really sexy console interface bit! (Who is going to do the TK interface then?)
176 dbg('chan', "<- $sort $call $line\n") unless $sort eq 'D';
179 my $user = $dxchan->user;
180 if ($sort eq 'A' || $sort eq 'O') {
181 $dxchan->start($line, $sort);
182 } elsif ($sort eq 'I') {
183 die "\$user not defined for $call" if !defined $user;
186 $dxchan->normal($line);
188 disconnect($dxchan) if ($dxchan->{state} eq 'bye');
189 } elsif ($sort eq 'Z') {
191 } elsif ($sort eq 'D') {
192 ; # ignored (an echo)
194 print STDERR atime, " Unknown command letter ($sort) received from $call\n";
200 my $t = $systime - $starttime;
201 my $days = int $t / 86400;
203 my $hours = int $t / 3600;
205 my $mins = int $t / 60;
206 return sprintf "%d %02d:%02d", $days, $hours, $mins;
208 #############################################################
210 # The start of the main line of code
212 #############################################################
214 $starttime = $systime = time;
216 # open the debug file, set various FHs to be unbuffered
220 STDOUT->autoflush(1);
222 Log('cluster', "DXSpider V$version started");
225 print "DXSpider DX Cluster Version $version\nCopyright (c) 1998 Dirk Koopman G1TLH\n";
228 print "loading prefixes ...\n";
232 print "loading band data ...\n";
235 # initialise User file system
236 print "loading user file system ...\n";
237 DXUser->init($userfn);
239 # start listening for incoming messages/connects
240 print "starting listener ...\n";
241 Msg->new_server("$clusteraddr", $clusterport, \&login);
244 $SIG{'INT'} = \&cease;
245 $SIG{'TERM'} = \&cease;
246 $SIG{'HUP'} = 'IGNORE';
247 $SIG{'CHLD'} = \&reap;
249 # read in system messages
252 # read in command aliases
255 # initialise the protocol engine
258 # initialise the Geomagnetic data engine
261 # initial the Spot stuff
264 # put in a DXCluster node for us here so we can add users and take them away
265 DXNode->new(0, $mycall, 0, 1, $DXProt::myprot_version);
267 # read in any existing message headers and clean out old crap
268 print "reading existing message headers\n";
272 # read in any cron jobs
273 print "reading cron jobs\n";
276 # this, such as it is, is the main loop!
277 print "orft we jolly well go ...\n";
280 Msg->event_loop(1, 0.001);
282 process_inqueue(); # read in lines from the input queue and despatch them
284 # do timed stuff, ongoing processing happens one a second
285 if ($timenow != $systime) {
289 DXCron::process(); # do cron jobs
290 DXCommandmode::process(); # process ongoing command mode stuff
291 DXProt::process(); # process ongoing ak1a pcxx stuff
292 DXConnect::process();
295 last if --$decease <= 0;