2 # module to manage channel lists & data
4 # This is the base class for all channel operations, which is everything to do
5 # with input and output really.
7 # The instance variable in the outside world will be generally be called $dxchan
9 # This class is 'inherited' (if that is the goobledegook for what I am doing)
10 # by various other modules. The point to understand is that the 'instance variable'
11 # is in fact what normal people would call the state vector and all useful info
12 # about a connection goes in there.
14 # Another point to note is that a vector may contain a list of other vectors.
15 # I have simply added another variable to the vector for 'simplicity' (or laziness
16 # as it is more commonly called)
18 # PLEASE NOTE - I am a C programmer using this as a method of learning perl
19 # firstly and OO about ninthly (if you don't like the design and you can't
20 # improve it with better OO and thus make it smaller and more efficient, then tough).
22 # Copyright (c) 1998-2000 - Dirk Koopman G1TLH
36 use vars qw(%channels %valid @ISA $count);
43 conn => '9,Msg Conn ref',
44 user => '9,DXUser ref',
45 startt => '0,Start Time,atime',
47 pc50_t => '5,Last PC50 Time,atime',
48 priv => '9,Privilege',
49 state => '0,Current State',
50 oldstate => '5,Last State',
51 list => '9,Dep Chan List',
52 name => '0,User Name',
53 consort => '5,Connection Type',
54 'sort' => '5,Type of Channel',
55 wwv => '0,Want WWV,yesno',
56 wcy => '0,Want WCY,yesno',
57 wx => '0,Want WX,yesno',
58 talk => '0,Want Talk,yesno',
59 ann => '0,Want Announce,yesno',
60 here => '0,Here?,yesno',
61 confmode => '0,In Conference?,yesno',
62 dx => '0,DX Spots,yesno',
63 redirect => '0,Redirect messages to',
66 loc => '9,Local Vars', # used by func to store local variables in
67 beep => '0,Want Beeps,yesno',
68 lastread => '5,Last Msg Read',
69 outbound => '5,outbound?,yesno',
70 remotecmd => '9,doing rcmd,yesno',
71 pagelth => '0,Page Length',
72 pagedata => '9,Page Data Store',
73 group => '0,Access Group,parray', # used to create a group of users/nodes for some purpose or other
74 isolate => '5,Isolate network,yesno',
75 delayed => '5,Delayed messages,parray',
76 annfilter => '5,Announce Filter',
77 wwvfilter => '5,WWV Filter',
78 wcyfilter => '5,WCY Filter',
79 spotsfilter => '5,Spot Filter',
80 inannfilter => '5,Input Ann Filter',
81 inwwvfilter => '5,Input WWV Filter',
82 inwcyfilter => '5,Input WCY Filter',
83 inspotsfilter => '5,Input Spot Filter',
84 passwd => '9,Passwd List,parray',
85 pingint => '5,Ping Interval ',
86 nopings => '5,Ping Obs Count',
87 lastping => '5,Ping last sent,atime',
88 pingtime => '5,Ping totaltime,parray',
89 pingave => '0,Ping ave time',
90 logininfo => '9,Login info req,yesno',
91 talklist => '0,Talk List,parray',
92 cluster => '5,Cluster data',
93 isbasic => '9,Internal Connection',
101 if (ref($self->{$_})) {
105 dbg('chan', "DXChannel $self->{call} destroyed ($count)");
109 # create a new channel object [$obj = DXChannel->new($call, $msg_conn_obj, $user_obj)]
112 my ($pkg, $call, $conn, $user) = @_;
115 die "trying to create a duplicate channel for $call" if $channels{$call};
116 $self->{call} = $call;
118 $self->{conn} = $conn if defined $conn; # if this isn't defined then it must be a list
120 $self->{user} = $user;
121 $self->{lang} = $user->lang;
122 $user->new_group() if !$user->group;
123 $self->{group} = $user->group;
124 $self->{sort} = $user->sort;
126 $self->{startt} = $self->{t} = time;
128 $self->{oldstate} = 0;
129 $self->{lang} = $main::lang if !$self->{lang};
133 dbg('chan', "DXChannel $self->{call} created ($count)");
135 return $channels{$call} = $self;
138 # obtain a channel object by callsign [$obj = DXChannel->get($call)]
141 my ($pkg, $call) = @_;
142 return $channels{$call};
145 # obtain all the channel objects
149 return values(%channels);
153 # gimme all the ak1a nodes
159 foreach $ref (values %channels) {
160 push @out, $ref if $ref->is_node;
165 # return a list of all users
170 foreach $ref (values %channels) {
171 push @out, $ref if $ref->is_user;
176 # return a list of all user callsigns
177 sub get_all_user_calls
181 foreach $ref (values %channels) {
182 push @out, $ref->{call} if $ref->is_user;
187 # obtain a channel object by searching for its connection reference
190 my ($pkg, $conn) = @_;
193 foreach $self (values(%channels)) {
194 return $self if ($self->{conn} == $conn);
199 # get rid of a channel object [$obj->del()]
204 $self->{group} = undef; # belt and braces
205 delete $channels{$self->{call}};
212 return $self->{'sort'} eq 'B';
218 return $self->{'sort'} =~ /[ACRSX]/;
220 # is it an ak1a node ?
224 return $self->{'sort'} eq 'A';
231 return $self->{'sort'} eq 'U';
238 return $self->{'sort'} eq 'C';
241 # is it a spider node
245 return $self->{'sort'} eq 'S';
252 return $self->{'sort'} eq 'X';
255 # is it a ar-cluster node
259 return $self->{'sort'} eq 'R';
262 # for perl 5.004's benefit
266 return @_ ? $self->{'sort'} = shift : $self->{'sort'} ;
269 # handle out going messages, immediately without waiting for the select to drop
270 # this could, in theory, block
274 my $conn = $self->{conn};
277 my $call = $self->{call};
281 my @lines = split /\n/;
283 $conn->send_now("$sort$call|$_");
284 dbg('chan', "-> $sort $call $_");
291 # the normal output routine
293 sub send # this is always later and always data
296 my $conn = $self->{conn};
298 my $call = $self->{call};
302 my @lines = split /\n/;
304 $conn->send_later("D$call|$_");
305 dbg('chan', "-> D $call $_");
311 # send a file (always later)
314 my ($self, $fn) = @_;
315 my $call = $self->{call};
316 my $conn = $self->{conn};
319 open(F, $fn) or die "can't open $fn for sending file ($!)";
325 # this will implement language independence (in time)
329 return DXM::msg($self->{lang}, @_);
332 # stick a broadcast on the delayed queue (but only up to 20 items)
338 $self->{delayed} = [] unless $self->{delayed};
339 push @{$self->{delayed}}, $s;
340 if (@{$self->{delayed}} >= 20) {
341 shift @{$self->{delayed}}; # lose oldest one
345 # change the state of the channel - lots of scope for debugging here :-)
350 $self->{oldstate} = $self->{state};
351 $self->{state} = shift;
352 $self->{func} = '' unless defined $self->{func};
353 dbg('state', "$self->{call} channel func $self->{func} state $self->{oldstate} -> $self->{state}\n");
355 # if there is any queued up broadcasts then splurge them out here
356 if ($self->{delayed} && ($self->{state} eq 'prompt' || $self->{state} eq 'talk')) {
357 $self->send (@{$self->{delayed}});
358 delete $self->{delayed};
361 return $self->{state};
364 # disconnect this channel
368 my $user = $self->{user};
370 $user->close() if defined $user;
371 $self->{conn}->disconnect;
376 # just close all the socket connections down without any fiddling about, cleaning, being
377 # nice to other processes and otherwise telling them what is going on.
379 # This is for the benefit of forked processes to prepare for starting new programs, they
380 # don't want or need all this baggage.
386 foreach $ref (values %channels) {
387 $ref->{conn}->disconnect() if $ref->{conn};
392 # Tell all the users that we have come in or out (if they want to know)
398 # send info to all logged in thingies
399 my @dxchan = get_all_users();
401 foreach $dxchan (@dxchan) {
402 next if $dxchan == $self;
403 $dxchan->send($dxchan->msg($m, $self->{call})) if $dxchan->{logininfo};
407 # various access routines
410 # return a list of valid elements
419 # return a prompt for a field
424 my ($self, $ele) = @_;
428 # take a standard input message and decode it into its standard parts
433 my ($sort, $call, $line) = $data =~ /^([A-Z])([A-Z0-9\-]{3,9})\|(.*)$/;
435 my $chcall = (ref $dxchan) ? $dxchan->call : "UN.KNOWN";
437 # the above regexp must work
438 unless (defined $sort && defined $call && defined $line) {
439 # $data =~ s/([\x00-\x1f\x7f-\xff])/uc sprintf("%%%02x",ord($1))/eg;
440 dbg('err', "DUFF Line on $chcall: $data");
444 if(ref($dxchan) && $call ne $chcall) {
445 dbg('err', "DUFF Line come in for $call on wrong channel $chcall" );
449 return ($sort, $call, $line);
456 my $name = $AUTOLOAD;
457 return if $name =~ /::DESTROY$/;
460 confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
462 # this clever line of code creates a subroutine which takes over from autoload
463 # from OO Perl - Conway
464 *{$AUTOLOAD} = sub {@_ > 1 ? $_[0]->{$name} = $_[1] : $_[0]->{$name}} ;
465 @_ ? $self->{$name} = shift : $self->{$name} ;