-### This module impliments the handlers for the protocal mode for a dx cluster## Copyright (c) 1998-2006 Dirk Koopman G1TLH## $Id$#package DXProt;@ISA = qw(DXChannel);use DXUtil;use DXChannel;use DXUser;use DXM;use DXProtVars;use DXCommandmode;use DXLog;use Spot;use DXProtout;use DXDebug;use Filter;use Local;use DXDb;use AnnTalk;use Geomag;use WCY;use BadWords;use DXHash;use Route;use Route::Node;use Script;use RouteDB;use strict;use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime $last_hour $last10 %eph %pings %rcmds $ann_to_talk $pingint $obscount %pc19list $chatdupeage $chatimportfn $investigation_int $pc19_version $myprot_version %nodehops $baddx $badspotter $badnode $censorpc $rspfcheck $allowzero $decode_dk0wcy $send_opernam @checklist $eph_pc15_restime $pc9x_past_age $pc9x_future_age );$pc9x_past_age = 15*60; # maximum age in the past of a px9x$pc9x_future_age = 5*60; # maximum age in the future ditto# incoming talk commandssub handle_10{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; # rsfp check return if $rspfcheck and !$self->rspfcheck(0, $_[6], $_[1]); # will we allow it at all? if ($censorpc) { my @bad; if (@bad = BadWords::check($_[3])) { dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr'); return; } } # is it for me or one of mine? my ($from, $to, $via, $call, $dxchan); $from = $_[1]; if ($_[5] gt ' ') { $via = $_[2]; $to = $_[5]; } else { $to = $_[2]; } # if this is a 'nodx' node then ignore it if ($badnode->in($_[6]) || ($via && $badnode->in($via))) { dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr'); return; } # if this is a 'bad spotter' user then ignore it my $nossid = $from; $nossid =~ s/-\d+$//; if ($badspotter->in($nossid)) { dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr'); return; } # if we are converting announces to talk is it a dup? if ($ann_to_talk) { if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) { dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr'); return; } } # remember a route to this node and also the node on which this user is RouteDB::update($_[6], $self->{call});# RouteDB::update($to, $_[6]); # convert this to a PC93 and process it as such $self->normal(pc93($to, $from, $via, $_[3], $_[6])); return; # this is all redundant but kept for now for reference # it is here and logged on $dxchan = DXChannel::get($main::myalias) if $to eq $main::mycall; $dxchan = DXChannel::get($to) unless $dxchan; if ($dxchan && $dxchan->is_user) { $_[3] =~ s/\%5E/^/g; $dxchan->talk($from, $to, $via, $_[3]); return; } # is it elsewhere, visible on the cluster via the to address? # note: this discards the via unless the to address is on # the via address my ($ref, $vref); if ($ref = Route::get($to)) { $vref = Route::Node::get($via) if $via; $vref = undef unless $vref && grep $to eq $_, $vref->users; $ref->dxchan->talk($from, $to, $vref ? $via : undef, $_[3], $_[6]); return; } # can we see an interface to send it down? # not visible here, send a message of condolence $vref = undef; $ref = Route::get($from); $vref = $ref = Route::Node::get($_[6]) unless $ref; if ($ref) { $dxchan = $ref->dxchan; $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) ); }}# DX Spot handlingsub handle_11{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; # route 'foreign' pc26s if ($pcno == 26) { if ($_[7] ne $main::mycall) { $self->route($_[7], $line); return; } } # rsfp check # return if $rspfcheck and !$self->rspfcheck(1, $_[7], $_[6]); # is the spotted callsign blank? This should really be trapped earlier but it # could break other protocol sentences. Also check for lower case characters. if ($_[2] =~ /^\s*$/) { dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr'); return; } if ($_[2] =~ /[a-z]/) { dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr'); return; } # if this is a 'nodx' node then ignore it if ($badnode->in($_[7])) { dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr'); return; } # if this is a 'bad spotter' user then ignore it my $nossid = $_[6]; $nossid =~ s/-\d+$//; if ($badspotter->in($nossid)) { dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr'); return; } # convert the date to a unix date my $d = cltounix($_[3], $_[4]); # bang out (and don't pass on) if date is invalid or the spot is too old (or too young) if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) { dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr'); return; } # is it 'baddx' if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) { dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr'); return; } # do some de-duping $_[5] =~ s/^\s+//; # take any leading blanks off $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign if ($_[2] =~ /BUST\w*$/) { dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr'); return; } if ($censorpc) { my @bad; if (@bad = BadWords::check($_[5])) { dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr'); return; } } # remember a route# RouteDB::update($_[7], $self->{call});# RouteDB::update($_[6], $_[7]); my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $nossid, $_[7]); # global spot filtering on INPUT if ($self->{inspotsfilter}) { my ($filter, $hops) = $self->{inspotsfilter}->it(@spot); unless ($filter) { dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr'); return; } } # this goes after the input filtering, but before the add # so that if it is input filtered, it isn't added to the dup # list. This allows it to come in from a "legitimate" source if (Spot::dup(@spot[0..4,5])) { dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr'); return; } # add it Spot::add(@spot); # # @spot at this point contains:- # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node # then spotted itu, spotted cq, spotters itu, spotters cq # you should be able to route on any of these # # fix up qra locators of known users my $user = DXUser->get_current($spot[4]); if ($user) { my $qra = $user->qra; unless ($qra && is_qra($qra)) { my $lat = $user->lat; my $long = $user->long; if (defined $lat && defined $long) { $user->qra(DXBearing::lltoqra($lat, $long)); $user->put; } } # send a remote command to a distant cluster if it is visible and there is no # qra locator and we havn't done it for a month. unless ($user->qra) { my $node; my $to = $user->homenode; my $last = $user->lastoper || 0; if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) { my $cmd = "forward/opernam $spot[4]"; # send the rcmd but we aren't interested in the replies... my $dxchan = $node->dxchan; if ($dxchan && $dxchan->is_clx) { route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd)); } else { route(undef, $to, pc34($main::mycall, $to, $cmd)); } if ($to ne $_[7]) { $to = $_[7]; $node = Route::Node::get($to); if ($node) { $dxchan = $node->dxchan; if ($dxchan && $dxchan->is_clx) { route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd)); } else { route(undef, $to, pc34($main::mycall, $to, $cmd)); } } } $user->lastoper($main::systime); $user->put; } } } # local processing my $r; eval { $r = Local::spot($self, @spot); }; # dbg("Local::spot1 error $@") if isdbg('local') if $@; return if $r; # DON'T be silly and send on PC26s! return if $pcno == 26; # send out the filtered spots send_dx_spot($self, $line, @spot) if @spot;}# announcessub handle_12{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; # return if $rspfcheck and !$self->rspfcheck(1, $_[5], $_[1]); # announce duplicate checking $_[3] =~ s/^\s+//; # remove leading blanks if ($censorpc) { my @bad; if (@bad = BadWords::check($_[3])) { dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr'); return; } } # if this is a 'nodx' node then ignore it if ($badnode->in($_[5])) { dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr'); return; } # if this is a 'bad spotter' user then ignore it my $nossid = $_[1]; $nossid =~ s/-\d+$//; if ($badspotter->in($nossid)) { dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr'); return; } my $dxchan; if ((($dxchan = DXChannel::get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){ $self->send_chat(0, $line, @_[1..6]); } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) { # remember a route# RouteDB::update($_[5], $self->{call});# RouteDB::update($_[1], $_[5]); # ignore something that looks like a chat line coming in with sysop # flag - this is a kludge... if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') { dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr'); return; } # here's a bit of fun, convert incoming ann with a callsign in the first word # or one saying 'to <call>' to a talk if we can route to the recipient if ($ann_to_talk) { my $call = AnnTalk::is_talk_candidate($_[1], $_[3]); if ($call) { my $ref = Route::get($call); if ($ref) { $dxchan = $ref->dxchan; $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self; return; } } } # send it $self->send_announce(0, $line, @_[1..6]); } else { $self->route($_[2], $line); }}sub handle_15{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if (eph_dup($line, $eph_pc15_restime)) { dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr'); } else { unless ($self->{isolate}) { DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me } }}# incoming usersub handle_16{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; # general checks my $dxchan; my $ncall = $_[1]; my $newline = "PC16^"; # dos I want users from this channel? unless ($self->user->wantpc16) { dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr'); return; } # is it me? if ($ncall eq $main::mycall) { dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr'); return; } my $h; $h = 1 if DXChannel::get($ncall); RouteDB::update($ncall, $self->{call}, $h); if ($h && $self->{call} ne $ncall) { dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr'); return; } if (eph_dup($line)) { dbg("PCPROT: dup PC16 detected") if isdbg('chanerr'); return; } my $parent = Route::Node::get($ncall); if ($parent) { $dxchan = $parent->dxchan; if ($dxchan && $dxchan ne $self) { dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr'); return; } # input filter if required return unless $self->in_filter_route($parent); } else { $parent = Route::Node->new($ncall); } unless ($h) { if ($parent->via_pc92) { dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr'); return; } } my $i; my @rout; for ($i = 2; $i < $#_; $i++) { my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o; next unless $call && $conf && defined $here && is_callsign($call); next if $call eq $main::mycall; eph_del_regex("^PC17\\^$call\\^$ncall"); $conf = $conf eq '*'; # reject this if we think it is a node already my $r = Route::Node::get($call); my $u = DXUser->get_current($call) unless $r; if ($r || ($u && $u->is_node)) { dbg("PCPROT: $call is a node") if isdbg('chanerr'); next; } $r = Route::User::get($call); my $flags = Route::here($here)|Route::conf($conf); if ($r) { my $au = $r->addparent($parent); if ($r->flags != $flags) { $r->flags($flags); $au = $r; } push @rout, $r if $h && $au; } else { my @ans = $parent->add_user($call, $flags); push @rout, @ans if $h && @ans; } # send info to all logged in thingies $self->tell_login('loginu', "$ncall: $call") if DXUser->get_current($ncall)->is_local_node; $self->tell_buddies('loginb', $call, $ncall); # add this station to the user database, if required# $call =~ s/-\d+$//o; # remove ssid for users my $user = DXUser->get_current($call); $user = DXUser->new($call) if !$user; $user->homenode($parent->call) if !$user->homenode; $user->node($parent->call); $user->lastin($main::systime) unless DXChannel::get($call); $user->put; } if (@rout) { $self->route_pc16($origin, $line, $parent, @rout) if @rout;# $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal'; }}# remove a usersub handle_17{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $dxchan; my $ncall = $_[2]; my $ucall = $_[1]; eph_del_regex("^PC16\\^$ncall.*$ucall"); # do I want users from this channel? unless ($self->user->wantpc16) { dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr'); return; } if ($ncall eq $main::mycall) { dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr'); return; } RouteDB::delete($ncall, $self->{call}); my $uref = Route::User::get($ucall); unless ($uref) { dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr'); return; } my $parent = Route::Node::get($ncall); unless ($parent) { dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr'); return; } $dxchan = DXChannel::get($ncall); if ($dxchan && $dxchan ne $self) { dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr'); return; } unless ($dxchan) { if ($parent->via_pc92) { dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr'); return; } } if (DXChannel::get($ucall)) { dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr'); return; } # input filter if required and then remove user if present# return unless $self->in_filter_route($parent); $parent->del_user($uref); # send info to all logged in thingies $self->tell_login('logoutu', "$ncall: $ucall") if DXUser->get_current($ncall)->is_local_node; $self->tell_buddies('logoutb', $ucall, $ncall); if (eph_dup($line)) { dbg("PCPROT: dup PC17 detected") if isdbg('chanerr'); return; } $self->route_pc17($origin, $line, $parent, $uref);# $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;}# link requestsub handle_18{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; $self->state('init'); # record the type and version offered if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+(?:\.\d+)?)/) { $self->version(53 + $1); $self->user->version(53 + $1); $self->build(0 + $2); $self->user->build(0 + $2); unless ($self->is_spider) { $self->user->sort('S'); $self->user->put; $self->sort('S'); } $self->{handle_xml}++ if DXXml::available() && $_[1] =~ /\bxml/; if ($_[1] =~ /\bpc9x/) { $self->{do_pc9x} = 1; dbg("Do px9x set on $self->{call}"); } } else { $self->version(50.0); $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/; $self->user->version($self->version); } # first clear out any nodes on this dxchannel my $parent = Route::Node::get($self->{call}); my @rout = $parent->del_nodes; $self->route_pc21($origin, $line, @rout, $parent) if @rout; $self->send_local_config(); $self->send(pc20());}sub check_add_node{ my $call = shift; # add this station to the user database, if required (don't remove SSID from nodes) my $user = DXUser->get_current($call); if (!$user) { $user = DXUser->new($call); $user->priv(1); # I have relented and defaulted nodes $user->lockout(1); $user->homenode($call); $user->node($call); } $user->sort('A') unless $user->is_node; return $user;}# incoming cluster listsub handle_19{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $i; my $newline = "PC19^"; # new routing list my (@rout, @pc92out); # first get the INTERFACE node my $parent = Route::Node::get($self->{call}); unless ($parent) { dbg("DXPROT: my parent $self->{call} has disappeared"); $self->disconnect; return; } my $h; # parse the PC19 # # We are making a major change from now on. We are only going to accept # PC19s from directly connected nodes. This means that we are probably # going to throw away most of the data that we are being sent. # # The justification for this is that most of it is wrong or out of date # anyway. # # From now on we are only going to believe PC92 data and locally connected # non-pc92 nodes. # for ($i = 1; $i < $#_-1; $i += 4) { my $here = $_[$i]; my $call = uc $_[$i+1]; my $conf = $_[$i+2]; my $ver = $_[$i+3]; next unless defined $here && defined $conf && is_callsign($call); eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)"); # check for sane parameters # $ver = 5000 if $ver eq '0000'; next unless $ver && $ver =~ /^\d+$/; next if $ver < 5000; # only works with version 5 software next if length $call < 3; # min 3 letter callsigns next if $call eq $main::mycall; # check that this PC19 isn't trying to alter the wrong dxchan $h = 0; my $dxchan = DXChannel::get($call); if ($dxchan) { if ($dxchan == $self) { $h = 1; } else { dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr'); next; } } my $user = check_add_node($call);# if (eph_dup($genline)) {# dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');# next;# } RouteDB::update($call, $self->{call}, $dxchan ? 1 : undef); unless ($h) { if ($parent->via_pc92) { dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr'); next; } } my $r = Route::Node::get($call); my $flags = Route::here($here)|Route::conf($conf); # modify the routing table if it is in it, otherwise store it in the pc19list for now if ($r) { my $ar; if ($call ne $parent->call) { if ($self->in_filter_route($r)) { $ar = $parent->add($call, $ver, $flags);# push @rout, $ar if $ar; } else { next; } } if ($r->version ne $ver || $r->flags != $flags) { $r->version($ver); $r->flags($flags); } push @rout, $r; } else { if ($call eq $self->{call} || $user->wantroutepc19) { my $new = Route->new($call); # throw away if ($self->in_filter_route($new)) { my $ar = $parent->add($call, $ver, $flags); $user->wantroutepc19(1) unless defined $user->wantroutepc19; push @rout, $ar if $ar; push @pc92out, $r if $h; } else { next; } } } # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect) my $mref = DXMsg::get_busy($call); $mref->stop_msg($call) if $mref; $user->lastin($main::systime) unless DXChannel::get($call); $user->put; } # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead # but remember there will only be one (pair) these because any extras will be # thrown away. if (@rout) {# $self->route_pc21($self->{call}, $line, @rout); $self->route_pc19($self->{call}, $line, @rout); } if (@pc92out) { $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal'; }}sub send_delayed_pc92{ my $self = shift; # send out new PC92 config to everyone else my $line = gen_my_pc92_config($main::me); $self->broadcast_route_pc9x($main::mycall, undef, $line, 0); # if this is an external node then send out the external config unless ($self->{do_pc9x}) { $line = gen_my_pc92_config(Route::Node::get($self->{call})); $self->broadcast_route_pc9x($main::mycall, undef, $line, 0); }}# send local configurationsub handle_20{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if ($self->{do_pc9x} && $self->{state} ne 'init92') { dbg("PCPROT: disconnecting because login call not sent in any pc92") if isdbg('chanerr'); $self->send("**** You logged in with $self->{call} but that is NOT your \$mycall"); $self->disconnect; return; } $self->send_local_config(); $self->send(pc22()); $self->state('normal'); $self->{lastping} = 0; $self->send_delayed_pc92;}# delete a cluster from the list## This should never occur for directly connected nodes.#sub handle_21{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $call = uc $_[1]; eph_del_regex("^PC1[679].*$call"); # if I get a PC21 from the same callsign as self then ignore it if ($call eq $self->call) { dbg("PCPROT: self referencing PC21 from $self->{call}"); return; } RouteDB::delete($call, $self->{call}); my $parent = Route::Node::get($self->{call}); unless ($parent) { dbg("PCPROT: my parent $self->{call} has disappeared"); $self->disconnect; return; } my @rout; if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me! my $node = Route::Node::get($call); if ($node) { if ($node->via_pc92) { dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr'); return; } my $dxchan = DXChannel::get($call); if ($dxchan && $dxchan != $self) { dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr'); return; } # input filter it return unless $self->in_filter_route($node); # routing objects, force a PC21 if it is local push @rout, $node->del($parent); push @rout, $call if $dxchan && @rout == 0; } } else { dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr'); return; } if (eph_dup($line)) { dbg("PCPROT: dup PC21 detected") if isdbg('chanerr'); return; } if (@rout) { $self->route_pc21($origin, $line, @rout);# $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout); }}sub handle_22{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if ($self->{do_pc9x}) { if ($self->{state} ne 'init92') { dbg("PCPROT: disconnecting because login call not sent in any pc92") if isdbg('chanerr'); $self->send("**** You logged in with $self->{call} but that is NOT your \$mycall"); $self->disconnect; return; } } $self->{lastping} = 0; $self->state('normal'); $self->send_delayed_pc92;}# WWV infosub handle_23{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; # route foreign' pc27s if ($pcno == 27) { if ($_[8] ne $main::mycall) { $self->route($_[8], $line); return; } } # only do a rspf check on PC23 (not 27) if ($pcno == 23) { return if $rspfcheck and !$self->rspfcheck(1, $_[8], $_[7]) } # do some de-duping my $d = cltounix($_[1], sprintf("%02d18Z", $_[2])); my $sfi = unpad($_[3]); my $k = unpad($_[4]); my $i = unpad($_[5]); my ($r) = $_[6] =~ /R=(\d+)/; $r = 0 unless $r; if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) { dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr'); return; } # global wwv filtering on INPUT my @dxcc = ((Prefix::cty_data($_[7]))[0..2], (Prefix::cty_data($_[8]))[0..2]); if ($self->{inwwvfilter}) { my ($filter, $hops) = $self->{inwwvfilter}->it(@_[7,8], $origin, @dxcc); unless ($filter) { dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr'); return; } } $_[7] =~ s/-\d+$//o; # remove spotter's ssid if (Geomag::dup($d,$sfi,$k,$i,$_[6],$_[7])) { dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr'); return; } # note this only takes the first one it gets Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r); my $rep; eval { $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r); }; # dbg("Local::wwv2 error $@") if isdbg('local') if $@; return if $rep; # DON'T be silly and send on PC27s! return if $pcno == 27; # broadcast to the eager world send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);}# set here statussub handle_24{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $call = uc $_[1]; my ($nref, $uref); $nref = Route::Node::get($call); $uref = Route::User::get($call); return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on if (eph_dup($line)) { dbg("PCPROT: Dup PC24 ignored\n") if isdbg('chanerr'); return; } $nref->here($_[2]) if $nref; $uref->here($_[2]) if $uref; my $ref = $nref || $uref; return unless $self->in_filter_route($ref); $self->route_pc24($origin, $line, $ref, $_[3]);}# merge requestsub handle_25{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if ($_[1] ne $main::mycall) { $self->route($_[1], $line); return; } if ($_[2] eq $main::mycall) { dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr'); return; } Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]"); # spots if ($_[3] > 0) { my @in = reverse Spot::search(1, undef, undef, 0, $_[3]); my $in; foreach $in (@in) { $self->send(pc26(@{$in}[0..4], $_[2])); } } # wwv if ($_[4] > 0) { my @in = reverse Geomag::search(0, $_[4], time, 1); my $in; foreach $in (@in) { $self->send(pc27(@{$in}[0..5], $_[2])); } }}sub handle_26 {goto &handle_11}sub handle_27 {goto &handle_23}# mail/file handlingsub handle_28{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if ($_[1] eq $main::mycall) { no strict 'refs'; my $sub = "DXMsg::handle_$pcno"; &$sub($self, @_); } else { $self->route($_[1], $line) unless $self->is_clx; }}sub handle_29 {goto &handle_28}sub handle_30 {goto &handle_28}sub handle_31 {goto &handle_28}sub handle_32 {goto &handle_28}sub handle_33 {goto &handle_28}sub handle_34{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if (eph_dup($line, $eph_pc34_restime)) { dbg("PCPROT: dupe PC34, ignored") if isdbg('chanerr'); } else { $self->process_rcmd($_[1], $_[2], $_[2], $_[3]); }}# remote command repliessub handle_35{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^"); $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);}sub handle_36 {goto &handle_34}# database stuffsub handle_37{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if ($_[1] eq $main::mycall) { no strict 'refs'; my $sub = "DXDb::handle_$pcno"; &$sub($self, @_); } else { $self->route($_[1], $line) unless $self->is_clx; }}# node connected list from neighboursub handle_38{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift;}# incoming disconnectsub handle_39{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if ($_[1] eq $self->{call}) { $self->disconnect(1); } else { dbg("PCPROT: came in on wrong channel") if isdbg('chanerr'); }}sub handle_40 {goto &handle_28}# user infosub handle_41{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $call = $_[1]; my $sort = $_[2]; my $val = $_[3]; my $l = "PC41^$call^$sort"; if (eph_dup($l, $eph_info_restime)) { dbg("PCPROT: dup PC41, ignored") if isdbg('chanerr'); return; } # input filter if required # my $ref = Route::get($call) || Route->new($call); # return unless $self->in_filter_route($ref); if ($val eq $sort || $val =~ /^\s*$/) { dbg('PCPROT: invalid value') if isdbg('chanerr'); return; } # add this station to the user database, if required my $user = DXUser->get_current($call); $user = DXUser->new($call) unless $user; if ($sort == 1) { if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) { dbg("PCPROT: invalid name") if isdbg('chanerr'); if ($main::mycall eq 'GB7DJK' || $main::mycall eq 'GB7BAA' || $main::mycall eq 'WR3D') { DXChannel::broadcast_nodes(pc41($_[1], 1, $user->name)); # send it to everyone including me } return; } $user->name($val); } elsif ($sort == 2) { $user->qth($val); } elsif ($sort == 3) { if (is_latlong($val)) { my ($lat, $long) = DXBearing::stoll($val); $user->lat($lat) if $lat; $user->long($long) if $long; $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra; } else { dbg('PCPROT: not a valid lat/long') if isdbg('chanerr'); return; } } elsif ($sort == 4) { $user->homenode($val); } elsif ($sort == 5) { if (is_qra(uc $val)) { my ($lat, $long) = DXBearing::qratoll(uc $val); $user->lat($lat) if $lat && !$user->lat; $user->long($long) if $long && !$user->long; $user->qra(uc $val); } else { dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr'); return; } } $user->lastoper($main::systime); # to cut down on excessive for/opers being generated $user->put; unless ($self->{isolate}) { DXChannel::broadcast_nodes($line, $self); # send it to everyone but me } # perhaps this IS what we want after all # $self->route_pc41($ref, $call, $sort, $val, $_[4]);}sub handle_42 {goto &handle_28}# databasesub handle_44 {goto &handle_37}sub handle_45 {goto &handle_37}sub handle_46 {goto &handle_37}sub handle_47 {goto &handle_37}sub handle_48 {goto &handle_37}# message and databasesub handle_49{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if (eph_dup($line)) { dbg("PCPROT: Dup PC49 ignored\n") if isdbg('chanerr'); return; } if ($_[1] eq $main::mycall) { DXMsg::handle_49($self, @_); } else { $self->route($_[1], $line) unless $self->is_clx; }}# keep alive/user listsub handle_50{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $call = $_[1]; RouteDB::update($call, $self->{call}); my $node = Route::Node::get($call); if ($node) { return unless $node->call eq $self->{call}; $node->usercount($_[2]); # input filter if required return unless $self->in_filter_route($node); $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line); }}# incoming ping requests/answerssub handle_51{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $to = $_[1]; my $from = $_[2]; my $flag = $_[3]; # is it for us? if ($to eq $main::mycall) { if ($flag == 1) { $self->send(pc51($from, $to, '0')); } else { DXXml::Ping::handle_ping_reply($self, $from); } } else { RouteDB::update($from, $self->{call}); if (eph_dup($line)) { dbg("PCPROT: dup PC51 detected") if isdbg('chanerr'); return; } # route down an appropriate thingy $self->route($to, $line); }}# dunno but route itsub handle_75{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $call = $_[1]; if ($call ne $main::mycall) { $self->route($call, $line); }}# WCY broadcastssub handle_73{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my $call = $_[1]; # do some de-duping my $d = cltounix($call, sprintf("%02d18Z", $_[2])); if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) { dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr'); return; } @_ = map { unpad($_) } @_; if (WCY::dup($d)) { dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr'); return; } my $wcy = WCY::update($d, @_[2..12]); my $rep; eval { $rep = Local::wcy($self, @_[1..12]); }; # dbg("Local::wcy error $@") if isdbg('local') if $@; return if $rep; # broadcast to the eager world send_wcy_spot($self, $line, $d, @_[2..12]);}# remote commands (incoming)sub handle_84{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);}# remote command repliessub handle_85{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);}# decode a pc92 call: flag call : version : buildsub _decode_pc92_call{ my $icall = shift; my @part = split /:/, $icall; my ($flag, $call) = unpack "A A*", $part[0]; return () unless defined $flag && $flag ge '0' && $flag le '7'; return () unless $call && is_callsign($call); my $is_node = $flag & 4; my $is_extnode = $flag & 2; my $here = $flag & 1; return ($call, $is_node, $is_extnode, $here, $part[1], $part[2]);}# decode a pc92 call: flag call : version : buildsub _encode_pc92_call{ my $ref = shift; # plain call or value return $ref unless ref $ref; my $ext = shift; my $flag = 0; my $call = $ref->call; my $extra = ''; $flag |= $ref->here ? 1 : 0; if ($ref->isa('Route::Node') || $ref->isa('DXProt')) { $flag |= 4; my $dxchan = DXChannel::get($call); $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x}; if ($ext) { if ($ref->version) { my $version = $ref->version || 1.0; $version = $version * 100 + 5300 if $version < 50; $extra .= ":" . $version; } } } return "$flag$call$extra";}sub _add_thingy{ my $parent = shift; my $s = shift; my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s; my @rout; if ($call) { if ($is_node) { dbg("ROUTE: added node $call to " . $parent->call) if isdbg('routelow'); @rout = $parent->add($call, $version, Route::here($here)); } else { dbg("ROUTE: added user $call to " . $parent->call) if isdbg('routelow'); @rout = $parent->add_user($call, Route::here($here)); } } return @rout;}sub _del_thingy{ my $parent = shift; my $s = shift; my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s; my @rout; if ($call) { if ($is_node) { my $nref = Route::Node::get($call); dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow'); @rout = $nref->del($parent) if $nref; } else { my $uref = Route::User::get($call); dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow'); @rout = $parent->del_user($uref) if $uref; } } return @rout;}my $_last_time;my $_last_occurs;sub gen_pc9x_t{ if (!$_last_time || $_last_time != $main::systime) { $_last_time = $main::systime; $_last_occurs = 0; return $_last_time - $main::systime_daystart; } else { $_last_occurs++; return sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs; }}sub check_pc9x_t{ my $call = shift; my $t = shift; my $pc = shift; my $create = shift; my $parent = ref $call ? $call : Route::Node::get($call); if ($parent) { # we only do this for external calls whose routing table # record come and go. The reference for mycall is permanent # and not that frequently used, it also never times out, so # the id on it is completely unreliable. Besides, only commands # originating on this box will go through this code... if ($parent->call ne $main::mycall) { my $lastid = $parent->lastid->{$pc} || 0; if ($t < $lastid) { if (my $d = $lastid-86400+$t > $pc9x_past_age) { dbg("PCPROT: $call id $t <= $lastid, ignored") if isdbg('chanerr'); return; } } if ($lastid == $t) { dbg("PCPROT: dup id on $call = $lastid, ignored") if isdbg('chanerr'); return; } } } elsif ($create) { $parent = Route::Node->new($call); } $parent->lastid->{$pc} = $t; return $parent;}# DXSpider routing entriessub handle_92{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; my (@radd, @rdel); my $pcall = $_[1]; unless ($pcall) { dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr'); return; } my $t = $_[2]; my $sort = $_[3]; if ($pcall eq $main::mycall) { dbg("PCPROT: looped back, ignored") if isdbg('chanerr'); return; } if ($pcall eq $self->{call} && $self->{state} eq 'init') { $self->state('init92'); $self->{do_pc9x} = 1; dbg("Do pc9x set on $pcall"); } unless ($self->{do_pc9x}) { dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr'); return; } my $parent = check_pc9x_t($pcall, $t, 92, 1) || return; my $oparent = $parent; $parent->do_pc9x(1); $parent->via_pc92(1); if ($sort eq 'F' || $sort eq 'R') { # this is the route finding section # here is where the consequences of the 'find' command # are dealt with my $from = $_[4]; my $target = $_[5]; if ($sort eq 'F') { my $flag; my $ref; my $dxchan; if ($ref = DXChannel::get($target)) { $flag = 1; # we are directly connected } else { $ref = Route::get($target); $dxchan = $ref->dxchan; $flag = 2; } if ($ref && $flag && $dxchan) { $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000))); return; } } elsif ($sort eq 'R') { if (my $dxchan = DXChannel::get($from)) { handle_pc92_find_reply($dxchan, $pcall, $from, $target, @_[6,7]); } else { my $ref = Route::get($from); if ($ref) { my @dxchan = grep {$_->do_pc9x} $ref->alldxchan; if (@dxchan) { $_->send($line) for @dxchan; } else { dbg("PCPROT: no return route, ignored") if isdbg('chanerr') } } else { dbg("PCPROT: no return route, ignored") if isdbg('chanerr') } } return; } } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') { # this is the main route section # here is where all the routes are created and destroyed my @ent = map {[ _decode_pc92_call($_) ]} grep {$_ && /^[0-7]/} @_[4 .. $#_]; if (@ent) { # look at the first one which will always be a node of some sort # and update any information that needs to be done. my ($call, $is_node, $is_extnode, $here, $version, $build) = @{$ent[0]}; if ($call && $is_node) { if ($call eq $main::mycall) { dbg("PCPROT: looped back on node entry, ignored") if isdbg('chanerr'); return; } if ($is_extnode) { # this is only accepted from my "self" if (DXChannel::get($call) && $call ne $self->{call}) { dbg("PCPROT: locally connected node config for $call from other another node $self->{call}, ignored") if isdbg('chanerr'); return; } # reparent to external node (note that we must have received a 'C' or 'A' record # from the true parent node for this external before we get one for the this node unless ($parent = Route::Node::get($call)) { dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr'); return; } $parent = check_pc9x_t($call, $t, 92) || return; $parent->via_pc92(1); } } else { dbg("PCPROT: must be mycall or external node as first entry, ignored") if isdbg('chanerr'); return; } $parent->here(Route::here($here)); $parent->version($version) if $version && $version > $parent->version; $parent->build($build) if $build && $build > $parent->build; shift @ent; } # do a pass through removing any references to either locally connected nodes or mycall my @nent; for (@ent) { next unless $_; if ($_->[0] eq $main::mycall || DXChannel::get($_->[0])) { dbg("PCPROT: $_->[0] refers to locally connected node, ignored") if isdbg('chanerr'); next; } push @nent, $_; } if ($sort eq 'A') { for (@nent) { push @radd, _add_thingy($parent, $_); } } elsif ($sort eq 'D') { for (@nent) { push @rdel, _del_thingy($parent, $_); } } elsif ($sort eq 'C') { my (@nodes, @users); # we only reset obscounts on config records $oparent->reset_obs; dbg("ROUTE: reset obscount on $pcall now " . $oparent->obscount) if isdbg('route'); if ($oparent != $parent) { $parent->reset_obs; dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('route'); } # foreach my $r (@nent) { # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_); if ($r->[0]) { if ($r->[1]) { push @nodes, $r->[0]; } else { push @users, $r->[0]; } } else { dbg("DXPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr'); } } my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users); # add users here foreach my $r (@nent) { my $call = $r->[0]; if ($call) { push @radd,_add_thingy($parent, $r) if grep $call eq $_, (@$nnodes, @$nusers); } } # del users here foreach my $r (@$dnodes) { push @rdel,_del_thingy($parent, [$r, 1]); } foreach my $r (@$dusers) { push @rdel,_del_thingy($parent, [$r, 0]); } } else { dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr'); return; } foreach my $r (@rdel) { next unless $r; $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node'); $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User'); } my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd; my @pc16 = grep { $_ && $_->isa('Route::User') } @radd; unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent; $self->route_pc19($pcall, undef, @pc19) if @pc19; $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16; } # broadcast it if we get here $self->broadcast_route_pc9x($pcall, undef, $line, 0);}sub handle_93{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift;# $self->{do_pc9x} ||= 1; my $pcall = $_[1]; unless (is_callsign($pcall)) { dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr'); return; } my $t = $_[2]; my $parent = check_pc9x_t($pcall, $t, 93, 1) || return; my $to = $_[3]; my $from = $_[4]; my $via = $_[5]; my $text = $_[6]; my $onode = $_[7]; $onode = $pcall if @_ <= 8; # will we allow it at all? if ($censorpc) { my @bad; if (@bad = BadWords::check($text)) { dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr'); return; } } # if this is a 'bad spotter' user then ignore it my $nossid = $from; $nossid =~ s/-\d+$//; if ($badspotter->in($nossid)) { dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr'); return; } if (is_callsign($to)) { # local talks my $dxchan; $dxchan = DXChannel::get($main::myalias) if $to eq $main::mycall; $dxchan = DXChannel::get($to) unless $dxchan; if ($dxchan && $dxchan->is_user) { $dxchan->talk($from, $to, $via, $text, $onode); return; } # convert to PC10 talks where appropriate my $ref = Route::get($to); if ($ref) { my @dxchan = $ref->alldxchan; for $dxchan (@dxchan) { if ($dxchan->{do_pc9x}) { $dxchan->send($line); } else { $dxchan->talk($from, $to, $via, $text, $onode); } } return; } # otherwise, drop through and allow it to be broadcast } elsif ($to eq '*' || uc $to eq 'SYSOP' || uc $to eq 'WX') { # announces my $sysop = uc $to eq 'SYSOP' ? '*' : ' '; my $wx = uc $to eq 'WX' ? '1' : '0'; my $local = $via eq 'LOCAL' ? '*' : $via; $self->send_announce(1, pc12($from, $text, $local, $via, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef); return if $via eq 'LOCAL'; } else { # chat messages to non-pc9x nodes $self->send_chat(1, pc12($from, $text, undef, $to, undef, $pcall), $from, '*', $text, $to, $pcall, '0'); } $self->broadcast_route_pc9x($pcall, undef, $line, 0);}# if get here then rebroadcast the thing with its Hop count decremented (if# there is one). If it has a hop count and it decrements to zero then don't# rebroadcast it.## NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be# REBROADCAST!!!!#sub handle_default{ my $self = shift; my $pcno = shift; my $line = shift; my $origin = shift; if (eph_dup($line)) { dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr'); } else { if ($pcno >= 90) { my $pcall = $_[1]; unless (is_callsign($pcall)) { dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr'); return; } my $t = $_[2]; my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return; $self->broadcast_route_pc9x($pcall, undef, $line, 0); } else { unless ($self->{isolate}) { DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me } } }}1;
\ No newline at end of file
+#
+#
+# This module impliments the handlers for the protocal mode for a dx cluster
+#
+# Copyright (c) 1998-2007 Dirk Koopman G1TLH
+#
+#
+#
+
+package DXProt;
+
+@ISA = qw(DXChannel);
+
+use DXUtil;
+use DXChannel;
+use DXUser;
+use DXM;
+use DXProtVars;
+use DXCommandmode;
+use DXLog;
+use Spot;
+use DXProtout;
+use DXDebug;
+use Filter;
+use Local;
+use DXDb;
+use AnnTalk;
+use Geomag;
+use WCY;
+use BadWords;
+use DXHash;
+use Route;
+use Route::Node;
+use Script;
+use DXCIDR;
+
+use strict;
+use warnings qw(all);
+
+use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
+ $last_hour $last10 %eph %pings %rcmds $ann_to_talk
+ $pingint $obscount %pc19list $chatdupeage $chatimportfn
+ $investigation_int $pc19_version $myprot_version
+ %nodehops $baddx $badspotter $badnode $censorpc
+ $allowzero $decode_dk0wcy $send_opernam @checklist
+ $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
+ $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
+ $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
+ $pc92filterdef $senderverify
+ );
+
+$pc9x_dupe_age = 60; # catch loops of circular (usually) D records
+$pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
+$pc92_slug_changes = 60*1; # slug any changes going outward for this long
+$last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
+$pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
+$pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
+$pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
+ # this is actually the partition between "yesterday" and "today" but old.
+$senderverify = 0; # 1 - check for forged PC11 or PC61.
+ # 2 - if forged, dump them.
+
+
+$pc92filterdef = bless ([
+ # tag, sort, field, priv, special parser
+ ['call', 'c', 0],
+ ['by', 'c', 0],
+ ['dxcc', 'nc', 1],
+ ['itu', 'ni', 2],
+ ['zone', 'nz', 3],
+ ], 'Filter::Cmd');
+
+our %pc11q;
+# this is a place to park an incoming PC11 in the sure and certain hope that
+# a PC61 will be along soon. This has the side benefit that it will delay a
+# a PC11 for one second - assuming that it is not removed by a PC61 version
+
+# incoming talk commands
+sub handle_10
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ # this is to catch loops caused by bad software ...
+ if (eph_dup($line, $pc10_dupe_age)) {
+ return;
+ }
+
+ # will we allow it at all?
+ if ($censorpc) {
+ my @bad;
+ if (@bad = BadWords::check($pc->[3])) {
+ dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ # is it for me or one of mine?
+ my ($from, $to, $via, $call, $dxchan);
+ $from = $pc->[1];
+ if ($pc->[5] gt ' ') {
+ $via = $pc->[2];
+ $to = $pc->[5];
+ } else {
+ $to = $pc->[2];
+ }
+
+ # if this is a 'nodx' node then ignore it
+ if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
+ dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # if this is a 'bad spotter' user then ignore it
+ my $nossid = $from;
+ $nossid =~ s/-\d+$//;
+ if ($badspotter->in($nossid)) {
+ dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # if we are converting announces to talk is it a dup?
+ if ($ann_to_talk) {
+ if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
+ dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ # convert this to a PC93, coming from mycall with origin set and process it as such
+ $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
+}
+
+my $last;
+my $pc11_saved;
+my $pc11_saved_time;
+
+# DX Spot handling
+sub handle_11
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+ my $recurse = shift || 0;
+
+ # route 'foreign' pc26s
+ if ($pcno == 26) {
+ if ($pc->[7] ne $main::mycall) {
+ $self->route($pc->[7], $line);
+ return;
+ }
+ }
+
+ dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11");
+
+# my ($hops) = $pc->[8] =~ /^H(\d+)/;
+
+ # is the spotted callsign blank? This should really be trapped earlier but it
+ # could break other protocol sentences. Also check for lower case characters.
+ if ($pc->[2] =~ /^\s*$/) {
+ dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
+ return;
+ }
+ if ($pc->[2] =~ /[a-z]/) {
+ dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
+ return;
+ }
+
+
+ # if this is a 'nodx' node then ignore it
+ if ($badnode->in($pc->[7])) {
+ dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # if this is a 'bad spotter' or an unknown user then ignore it. BUT if it's got an IP address then allow it through
+ my $nossid = $pc->[6];
+ $nossid =~ s/-\d+$//;
+ if ($badspotter->in($nossid)) {
+ dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # check IP addresses
+ if ($pc->[8] && is_ipaddr($pc->[8])) {
+ my $ip = $pc->[8];
+ $ip =~ s/,/:/g;
+ $ip =~ s/^::ffff://;
+ if (DXCIDR::find($ip)) {
+
+ }
+ }
+
+ # convert the date to a unix date
+ my $d = cltounix($pc->[3], $pc->[4]);
+ # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
+ if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
+ dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
+ return;
+ }
+
+ # is it 'baddx'
+ if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
+ dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ # do some de-duping
+ $pc->[5] =~ s/^\s+//; # take any leading blanks off
+ $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
+ if ($pc->[2] =~ /BUST\w*$/) {
+ dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
+ return;
+ }
+ if ($censorpc) {
+ my @bad;
+ if (@bad = BadWords::check($pc->[5])) {
+ dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+ return;
+ }
+ }
+
+
+ my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
+
+ # global spot filtering on INPUT
+ if ($self->{inspotsfilter}) {
+ my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
+ unless ($filter) {
+ dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
+
+ my $key = join '|', @spot[0..2,4,7]; # not including text
+ unless ($recurse) {
+ if ($pcno == 61) {
+ if ($pc11_saved) {
+ if ($key eq $pc11_saved->[0]) {
+ dbg("saved PC11 spot $key dumped, better pc61 received") if isdbg("pc11");
+ undef $pc11_saved;
+ }
+ }
+ }
+ if ($pcno == 11) {
+ if ($pc11_saved) {
+ if ($key eq $pc11_saved->[0]) {
+ dbg("saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
+ return; # because it's a dup
+ }
+ }
+
+ # can we promote this to a PC61?
+ my $r = Route::User::get($spot[4]); # find spotter
+ if ($r && $r->ip) { # do we have an ip addres
+ $pcno = 61; # now turn this into a PC61
+ $spot[14] = $r->ip;
+ dbg("PC11 spot $key promoted to pc61 ip $spot[14]") if isdbg("pc11");
+ undef $pc11_saved;
+ }
+ }
+
+ if ($pc11_saved && $key ne $pc11_saved) {
+ dbg("saved PC11 spot $pc11_saved->[0] ne new key $key, recursing") if isdbg("pc11");
+ shift @$pc11_saved; # saved key
+ my $self = shift @$pc11_saved;
+ my @saved = @$pc11_saved;
+ undef $pc11_saved;
+ $self->handle_11(@saved, 1);
+ }
+
+ # if we are still a PC11, save it for a better offer
+ if ($pcno == 11) {
+ $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
+ $pc11_saved_time = $main::systime;
+ dbg("saved new PC11 spot $key for a better offer") if isdbg("pc11");
+ return;
+ } else {
+ dbg("PC61 spot $key passed onward") if isdbg("pc11");
+ }
+ }
+
+
+ # this goes after the input filtering, but before the add
+ # so that if it is input filtered, it isn't added to the dup
+ # list. This allows it to come in from a "legitimate" source
+ if (Spot::dup(@spot[0..4,7])) {
+ dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
+ return;
+ }
+
+ # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
+ # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
+ # to be current once we have seen the first PC92C from that node.
+ #
+ # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
+ #
+ if ($senderverify) {
+ my $nroute = Route::Node::get($pc->[7]);
+ my $uroute = Route::Node::get($pc->[6]);
+ my $local = DXChannel::get($pc->[7]);
+
+ if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
+ my $s = '';
+ my $ip = $pcno == 61 ? $pc->[8] : '';
+# $s .= "User $pc->[6] not logged in, " unless $uroute;
+ $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
+# $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
+ if ($s) {
+ my $action = $senderverify > 1 ? ", DUMPED" : '';
+ $s =~ s/, $//;
+ dbg("PCProt: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
+ return unless $senderverify < 2;
+ }
+ }
+ }
+
+ # If is a new PC11, store it, releasing the one that is there (if any),
+ # if a PC61 comes along then dump the stored PC11
+ # If there is a different PC11 stored, release that one and store this PC11 instead,
+
+ # add it
+ Spot::add(@spot);
+
+ my $ip = '';
+ $ip ||= $spot[14] if exists $spot[14];
+ if (isdbg('progress')) {
+ my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
+ $sip ||= '';
+ my $d = ztime($spot[2]);
+ my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
+ $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
+ $s .= " route: $origin";
+ dbg($s);
+ }
+
+ #
+ # @spot at this point contains:-
+ # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
+ # then spotted itu, spotted cq, spotters itu, spotters cq
+ # you should be able to route on any of these
+ #
+
+ # fix up qra locators of known users
+ my $user = DXUser::get_current($spot[4]);
+ if ($user) {
+ my $qra = $user->qra;
+ unless ($qra && is_qra($qra)) {
+ my $lat = $user->lat;
+ my $long = $user->long;
+ if (defined $lat && defined $long) {
+ $user->qra(DXBearing::lltoqra($lat, $long));
+ $user->put;
+ }
+ }
+
+ # send a remote command to a distant cluster if it is visible and there is no
+ # qra locator and we havn't done it for a month.
+
+ unless ($user->qra) {
+ my $node;
+ my $to = $user->homenode;
+ my $last = $user->lastoper || 0;
+ if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
+ my $cmd = "forward/opernam $spot[4]";
+ # send the rcmd but we aren't interested in the replies...
+ my $dxchan = $node->dxchan;
+ if ($dxchan && $dxchan->is_clx) {
+ route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
+ } else {
+ route(undef, $to, pc34($main::mycall, $to, $cmd));
+ }
+ if ($to ne $origin) {
+ $to = $origin;
+ $node = Route::Node::get($to);
+ if ($node) {
+ $dxchan = $node->dxchan;
+ if ($dxchan && $dxchan->is_clx) {
+ route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
+ } else {
+ route(undef, $to, pc34($main::mycall, $to, $cmd));
+ }
+ }
+ }
+ $user->lastoper($main::systime);
+ $user->put;
+ }
+ }
+ }
+
+ # local processing
+ if (defined &Local::spot) {
+ my $r;
+ eval {
+ $r = Local::spot($self, @spot);
+ };
+ return if $r;
+ }
+
+ # DON'T be silly and send on PC26s!
+ return if $pcno == 26;
+
+ # send out the filtered spots
+ send_dx_spot($self, $line, @spot) if @spot;
+}
+
+# used to kick outstanding PC11 if required
+sub pc11_process
+{
+ if ($pc11_saved && $main::systime > $pc11_saved_time) {
+ dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
+ shift @$pc11_saved; # saved key
+ my $self = shift @$pc11_saved;
+ my @saved = @$pc11_saved;
+ undef $pc11_saved;
+ $self->handle_11(@saved, 1);
+ }
+}
+
+# announces
+sub handle_12
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ # announce duplicate checking
+ $pc->[3] =~ s/^\s+//; # remove leading blanks
+
+ if ($censorpc) {
+ my @bad;
+ if (@bad = BadWords::check($pc->[3])) {
+ dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ # if this is a 'nodx' node then ignore it
+ if ($badnode->in($pc->[5])) {
+ dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # if this is a 'bad spotter' user then ignore it
+ my $nossid = $pc->[1];
+ $nossid =~ s/-\d+$//;
+ if ($badspotter->in($nossid)) {
+ dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # ignore PC12s from origins that use PCxx protocol
+ my $oref = Route::get($origin);
+ if ($oref->do_pc9x) {
+ dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ my $dxchan;
+
+ if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
+ $self->send_chat(0, $line, @$pc[1..6]);
+ } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
+
+ # ignore something that looks like a chat line coming in with sysop
+ # flag - this is a kludge...
+ if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
+ dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
+ return;
+ }
+
+ # here's a bit of fun, convert incoming ann with a callsign in the first word
+ # or one saying 'to <call>' to a talk if we can route to the recipient
+ if ($ann_to_talk) {
+ my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
+ if ($call) {
+ my $ref = Route::get($call);
+ if ($ref) {
+ $dxchan = $ref->dxchan;
+ $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
+ return;
+ }
+ }
+ }
+
+ # send it
+ $self->send_announce(0, $line, @$pc[1..6]);
+ } else {
+ $self->route($pc->[2], $line);
+ }
+
+ # local processing
+ if (defined &Local::ann) {
+ my $r;
+ eval {
+ $r = Local::ann($self, $line, @$pc[1..6]);
+ };
+ return if $r;
+ }
+}
+
+sub handle_15
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if (eph_dup($line, $eph_pc15_restime)) {
+ return;
+ } else {
+ unless ($self->{isolate}) {
+ DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
+ }
+ }
+}
+
+# incoming user
+sub handle_16
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ # general checks
+ my $dxchan;
+ my $ncall = $pc->[1];
+ my $newline = "PC16^";
+
+ # dos I want users from this channel?
+ unless ($self->user->wantpc16) {
+ dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
+ return;
+ }
+
+ # is it me?
+ if ($ncall eq $main::mycall) {
+ dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+ return;
+ }
+
+ my $h;
+ $h = 1 if DXChannel::get($ncall);
+ if ($h && $self->{call} ne $ncall) {
+ dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ if (eph_dup($line)) {
+ return;
+ }
+
+ # isolate now means only accept stuff from this call only
+ if ($self->{isolate} && $ncall ne $self->{call}) {
+ dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
+ return;
+ }
+
+ my $parent = Route::Node::get($ncall);
+
+ if ($parent) {
+ $dxchan = $parent->dxchan;
+ if ($dxchan && $dxchan ne $self) {
+ dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+ return;
+ }
+
+ # input filter if required
+ return unless $self->in_filter_route($parent);
+ } else {
+ $parent = Route::Node->new($ncall);
+ }
+
+ unless ($h) {
+ if ($parent->via_pc92) {
+ dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ my $i;
+ my @rout;
+ for ($i = 2; $i < $#$pc; $i++) {
+ my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
+ next unless $call && $conf && defined $here && is_callsign($call);
+ next if $call eq $main::mycall;
+
+ eph_del_regex("^PC17\\^$call\\^$ncall");
+
+ $conf = $conf eq '*';
+
+ # reject this if we think it is a node already
+ my $r = Route::Node::get($call);
+ my $u = DXUser::get_current($call) unless $r;
+ if ($r || ($u && $u->is_node)) {
+ dbg("PCPROT: $call is a node") if isdbg('chanerr');
+ next;
+ }
+
+ $r = Route::User::get($call);
+ my $flags = Route::here($here)|Route::conf($conf);
+
+ if ($r) {
+ my $au = $r->addparent($parent);
+ if ($r->flags != $flags) {
+ $r->flags($flags);
+ $au = $r;
+ }
+ push @rout, $r if $h && $au;
+ } else {
+ my @ans = $parent->add_user($call, $flags);
+ push @rout, @ans if $h && @ans;
+ }
+
+ # add this station to the user database, if required
+ my $user = DXUser::get_current($ncall);
+ $user = DXUser->new($call) unless $user;
+ $user->homenode($parent->call) if !$user->homenode;
+ $user->node($parent->call);
+ $user->lastin($main::systime) unless DXChannel::get($call);
+ $user->put;
+
+ # send info to all logged in thingies
+ $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
+ $self->tell_buddies('loginb', $call, $ncall);
+ }
+ if (@rout) {
+ $self->route_pc16($origin, $line, $parent, @rout) if @rout;
+# $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
+ }
+}
+
+# remove a user
+sub handle_17
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my $dxchan;
+ my $ncall = $pc->[2];
+ my $ucall = $pc->[1];
+
+ eph_del_regex("^PC16\\^$ncall.*$ucall");
+
+ # do I want users from this channel?
+ unless ($self->user->wantpc16) {
+ dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
+ return;
+ }
+
+ if ($ncall eq $main::mycall) {
+ dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+ return;
+ }
+
+ # isolate now means only accept stuff from this call only
+ if ($self->{isolate} && $ncall ne $self->{call}) {
+ dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
+ return;
+ }
+
+ my $uref = Route::User::get($ucall);
+ unless ($uref) {
+ dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
+ return;
+ }
+ my $parent = Route::Node::get($ncall);
+ unless ($parent) {
+ dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
+ return;
+ }
+
+ $dxchan = DXChannel::get($ncall);
+ if ($dxchan && $dxchan ne $self) {
+ dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+ return;
+ }
+
+ unless ($dxchan) {
+ if ($parent->via_pc92) {
+ dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ if (DXChannel::get($ucall)) {
+ dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ # input filter if required and then remove user if present
+# return unless $self->in_filter_route($parent);
+ $parent->del_user($uref);
+
+ # send info to all logged in thingies
+ my $user = DXUser::get_current($ncall);
+ $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
+ $self->tell_buddies('logoutb', $ucall, $ncall);
+
+ if (eph_dup($line)) {
+ return;
+ }
+
+ $self->route_pc17($origin, $line, $parent, $uref);
+# $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
+}
+
+# link request
+sub handle_18
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ $self->state('init');
+
+ my $parent = Route::Node::get($self->{call});
+
+ # record the type and version offered
+ if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
+ $self->{version} = 53 + $version;
+ $self->user->version(53 + $version);
+ $parent->version(0 + $version);
+ my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
+ $self->{build} = 0 + $build;
+ $self->user->build(0 + $build);
+ $parent->build(0 + $build);
+ dbg("$self->{call} = DXSpider version $version build $build");
+ unless ($self->is_spider) {
+ dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
+ $self->user->sort('S');
+ $self->user->put;
+ $self->sort('S');
+ }
+# $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
+ } else {
+ dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
+ $self->version(50.0);
+ $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
+ $self->user->version($self->version);
+ }
+
+ if ($pc->[1] =~ /\bpc9x/) {
+ if ($self->{isolate}) {
+ dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
+ } elsif (!$self->user->wantpc9x) {
+ dbg("$self->{call} pc9x explicitly switched off, using old protocol");
+ } else {
+ $self->{do_pc9x} = 1;
+ dbg("$self->{call} Set do PC9x");
+ }
+ }
+
+ # first clear out any nodes on this dxchannel
+ my @rout = $parent->del_nodes;
+ $self->route_pc21($origin, $line, @rout, $parent) if @rout;
+ $self->send_local_config();
+ $self->send(pc20());
+}
+
+sub check_add_user
+{
+ my $call = shift;
+ my $type = shift;
+ my $homenode = shift;
+
+ # add this station to the user database, if required (don't remove SSID from nodes)
+ my $user = DXUser::get_current($call);
+ unless ($user) {
+ $user = DXUser->new($call);
+ $user->sort($type || 'U');
+ if ($user->is_node) {
+ $user->priv(1); # I have relented and defaulted nodes
+ $user->lockout(1) if $user->is_node;
+ } else {
+ $user->homenode($homenode) if $homenode;
+ $user->node($homenode);
+ $user->priv(0);
+ }
+ $user->lastin($main::systime); # this make it last longer than just this invocation
+ $user->put; # just to make sure it gets written away!!!
+ dbg("DXProt: PC92 new user record for $call created");
+ }
+
+ # this is to fix a problem I introduced some build ago by using this function for users
+ # whereas it was only being used for nodes.
+ if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
+ $user->priv(0);
+ $user->lockout(0);
+ dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
+ $user->put;
+ }
+ return $user;
+}
+
+# incoming cluster list
+sub handle_19
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my $i;
+ my $newline = "PC19^";
+
+ # new routing list
+ my (@rout, @pc92out);
+
+ # first get the INTERFACE node
+ my $parent = Route::Node::get($self->{call});
+ unless ($parent) {
+ dbg("PCPROT: my parent $self->{call} has disappeared");
+ $self->disconnect;
+ return;
+ }
+
+ my $h;
+
+ # parse the PC19
+ #
+ # We are making a major change from now on. We are only going to accept
+ # PC19s from directly connected nodes. This means that we are probably
+ # going to throw away most of the data that we are being sent.
+ #
+ # The justification for this is that most of it is wrong or out of date
+ # anyway.
+ #
+ # From now on we are only going to believe PC92 data and locally connected
+ # non-pc92 nodes.
+ #
+ for ($i = 1; $i < $#$pc-1; $i += 4) {
+ my $here = $pc->[$i];
+ my $call = uc $pc->[$i+1];
+ my $conf = $pc->[$i+2];
+ my $ver = $pc->[$i+3];
+ next unless defined $here && defined $conf && is_callsign($call);
+
+ eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
+
+ # check for sane parameters
+ # $ver = 5000 if $ver eq '0000';
+ next unless $ver && $ver =~ /^\d+$/;
+ next if $ver < 5000; # only works with version 5 software
+ next if length $call < 3; # min 3 letter callsigns
+ next if $call eq $main::mycall || $call eq $main::myalias;
+
+ # check that this PC19 isn't trying to alter the wrong dxchan
+ $h = 0;
+ my $dxchan = DXChannel::get($call);
+ if ($dxchan) {
+ if ($dxchan == $self) {
+ $h = 1;
+ } else {
+ dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
+ next;
+ }
+ }
+
+ # isolate now means only accept stuff from this call only
+ if ($self->{isolate} && $call ne $self->{call}) {
+ dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
+ next;
+ }
+
+ my $user = check_add_user($call, 'A');
+
+# if (eph_dup($genline)) {
+# dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
+# next;
+# }
+
+
+ unless ($h) {
+ if ($parent->via_pc92) {
+ dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
+ next;
+ }
+ }
+
+ my $r = Route::Node::get($call);
+ my $flags = Route::here($here)|Route::conf($conf);
+
+ # modify the routing table if it is in it, otherwise store it in the pc19list for now
+ if ($r) {
+ my $ar;
+ if ($call ne $parent->call) {
+ if ($self->in_filter_route($r)) {
+ $ar = $parent->add($call, $ver, $flags);
+# push @rout, $ar if $ar;
+ } else {
+ next;
+ }
+ }
+ if ($r->version ne $ver || $r->flags != $flags) {
+ $r->version($ver);
+ $r->flags($flags);
+ }
+ push @rout, $r;
+ } else {
+ if ($call eq $self->{call} || $user->wantroutepc19) {
+ my $new = Route->new($call); # throw away
+ if ($self->in_filter_route($new)) {
+ my $ar = $parent->add($call, $ver, $flags);
+ $user->wantroutepc19(1) unless defined $user->wantroutepc19;
+ push @rout, $ar if $ar;
+ push @pc92out, $r if $h;
+ } else {
+ next;
+ }
+ }
+ }
+
+ # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
+ my $mref = DXMsg::get_busy($call);
+ $mref->stop_msg($call) if $mref;
+
+ $user->lastin($main::systime) unless DXChannel::get($call);
+ $user->put;
+ }
+
+ # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
+ # but remember there will only be one (pair) these because any extras will be
+ # thrown away.
+ if (@rout) {
+# $self->route_pc21($self->{call}, $line, @rout);
+ $self->route_pc19($self->{call}, $line, @rout);
+ }
+ if (@pc92out && !$pc92_slug_changes) {
+ $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
+ }
+}
+
+# send local configuration
+sub handle_20
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if ($self->{do_pc9x} && $self->{state} ne 'init92') {
+ $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
+ $self->{do_pc9x} = 0;
+ }
+ $self->send_local_config;
+ $self->send(pc22());
+ $self->state('normal');
+ $self->{lastping} = 0;
+ $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
+}
+
+# delete a cluster from the list
+#
+# This should never occur for directly connected nodes.
+#
+sub handle_21
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my $call = uc $pc->[1];
+
+ eph_del_regex("^PC1[679].*$call");
+
+ # if I get a PC21 from the same callsign as self then ignore it
+ if ($call eq $self->{call}) {
+ dbg("PCPROT: self referencing PC21 from $self->{call}");
+ return;
+ }
+
+ # for the above reason and also because of the check for PC21s coming
+ # in for self->call from outside being ignored further down
+ # we don't need any isolation code here, because we will never
+ # act on a PC21 with self->call in it.
+
+ my $parent = Route::Node::get($self->{call});
+ unless ($parent) {
+ dbg("PCPROT: my parent $self->{call} has disappeared");
+ $self->disconnect;
+ return;
+ }
+
+ my @rout;
+
+ if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
+ my $node = Route::Node::get($call);
+ if ($node) {
+
+ if ($node->via_pc92) {
+ dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ my $dxchan = DXChannel::get($call);
+ if ($dxchan && $dxchan != $self) {
+ dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
+ return;
+ }
+
+ # input filter it
+ return unless $self->in_filter_route($node);
+
+ # routing objects, force a PC21 if it is local
+ push @rout, $node->del($parent);
+ push @rout, $call if $dxchan && @rout == 0;
+ }
+ } else {
+ dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
+ return;
+ }
+
+ if (eph_dup($line)) {
+ return;
+ }
+
+ if (@rout) {
+ $self->route_pc21($origin, $line, @rout);
+# $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
+ }
+}
+
+
+sub handle_22
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if ($self->{do_pc9x}) {
+ if ($self->{state} ne 'init92') {
+ $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
+ $self->{do_pc9x} = 0;
+ }
+ }
+ $self->{lastping} = 0;
+ $self->state('normal');
+ $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
+}
+
+# WWV info
+sub handle_23
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ # route foreign' pc27s
+ if ($pcno == 27) {
+ if ($pc->[8] ne $main::mycall) {
+ $self->route($pc->[8], $line);
+ return;
+ }
+ }
+
+
+ # do some de-duping
+ my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
+ my $sfi = unpad($pc->[3]);
+ my $k = unpad($pc->[4]);
+ my $i = unpad($pc->[5]);
+ my ($r) = $pc->[6] =~ /R=(\d+)/;
+ $r = 0 unless $r;
+ if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
+ dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
+ return;
+ }
+
+ # global wwv filtering on INPUT
+ my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
+ if ($self->{inwwvfilter}) {
+ my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
+ unless ($filter) {
+ dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
+ return;
+ }
+ }
+ $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
+ if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
+ dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
+ return;
+ }
+
+ # note this only takes the first one it gets
+ Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
+ dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
+
+ if (defined &Local::wwv) {
+ my $rep;
+ eval {
+ $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
+ };
+ return if $rep;
+ }
+
+ # DON'T be silly and send on PC27s!
+ return if $pcno == 27;
+
+ # broadcast to the eager world
+ send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
+}
+
+# set here status
+sub handle_24
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my $call = uc $pc->[1];
+ my ($nref, $uref);
+ $nref = Route::Node::get($call);
+ $uref = Route::User::get($call);
+ return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
+
+ if (eph_dup($line)) {
+ return;
+ }
+
+ $nref->here($pc->[2]) if $nref;
+ $uref->here($pc->[2]) if $uref;
+ my $ref = $nref || $uref;
+ return unless $self->in_filter_route($ref);
+
+ $self->route_pc24($origin, $line, $ref, $pc->[3]);
+}
+
+# merge request
+sub handle_25
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if ($pc->[1] ne $main::mycall) {
+ $self->route($pc->[1], $line);
+ return;
+ }
+ if ($pc->[2] eq $main::mycall) {
+ dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
+ return;
+ }
+
+ Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
+
+ # spots
+ if ($pc->[3] > 0) {
+ my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
+ my $in;
+ foreach $in (@in) {
+ $self->send(pc26(@{$in}[0..4], $pc->[2]));
+ }
+ }
+
+ # wwv
+ if ($pc->[4] > 0) {
+ my @in = reverse Geomag::search(0, $pc->[4], time, 1);
+ my $in;
+ foreach $in (@in) {
+ $self->send(pc27(@{$in}[0..5], $pc->[2]));
+ }
+ }
+}
+
+sub handle_26 {goto &handle_11}
+sub handle_27 {goto &handle_23}
+
+# mail/file handling
+sub handle_28
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if ($pc->[1] eq $main::mycall) {
+ no strict 'refs';
+ my $sub = "DXMsg::handle_$pcno";
+ &$sub($self, @$pc);
+ } else {
+ $self->route($pc->[1], $line) unless $self->is_clx;
+ }
+}
+
+sub handle_29 {goto &handle_28}
+sub handle_30 {goto &handle_28}
+sub handle_31 {goto &handle_28}
+sub handle_32 {goto &handle_28}
+sub handle_33 {goto &handle_28}
+
+sub handle_34
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if (eph_dup($line, $eph_pc34_restime)) {
+ return;
+ } else {
+ $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
+ }
+}
+
+# remote command replies
+sub handle_35
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
+ $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
+}
+
+sub handle_36 {goto &handle_34}
+
+# database stuff
+sub handle_37
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if ($pc->[1] eq $main::mycall) {
+ no strict 'refs';
+ my $sub = "DXDb::handle_$pcno";
+ &$sub($self, @$pc);
+ } else {
+ $self->route($pc->[1], $line) unless $self->is_clx;
+ }
+}
+
+# node connected list from neighbour
+sub handle_38
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+}
+
+# incoming disconnect
+sub handle_39
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if ($pc->[1] eq $self->{call}) {
+ $self->disconnect(1);
+ } else {
+ dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
+ }
+}
+
+sub handle_40 {goto &handle_28}
+
+# user info
+sub handle_41
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my $call = $pc->[1];
+ my $sort = $pc->[2];
+ my $val = $pc->[3];
+
+ my $l = "PC41^$call^$sort";
+ if (eph_dup($l, $eph_info_restime)) {
+ return;
+ }
+
+ # input filter if required
+ # my $ref = Route::get($call) || Route->new($call);
+ # return unless $self->in_filter_route($ref);
+
+ if ($val eq $sort || $val =~ /^\s*$/) {
+ dbg('PCPROT: invalid value') if isdbg('chanerr');
+ return;
+ }
+
+ if ($call eq $main::mycall || $call eq $main::myalias) {
+ dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
+ return;
+ }
+ my $chan = DXChannel::get($call);
+ if ($chan) {
+ dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
+ return;
+ }
+
+ # add this station to the user database, if required
+ my $user = DXUser::get_current($call);
+ $user = DXUser->new($call) unless $user;
+
+ if ($sort == 1) {
+ if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
+ dbg("PCPROT: invalid name") if isdbg('chanerr');
+ return;
+ }
+ $user->name($val);
+ } elsif ($sort == 2) {
+ $user->qth($val);
+ } elsif ($sort == 3) {
+ if (is_latlong($val)) {
+ my ($lat, $long) = DXBearing::stoll($val);
+ $user->lat($lat) if $lat;
+ $user->long($long) if $long;
+ $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
+ } else {
+ dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
+ return;
+ }
+ } elsif ($sort == 4) {
+ $user->homenode($val);
+ } elsif ($sort == 5) {
+ if (is_qra(uc $val)) {
+ my ($lat, $long) = DXBearing::qratoll(uc $val);
+ $user->lat($lat) if $lat && !$user->lat;
+ $user->long($long) if $long && !$user->long;
+ $user->qra(uc $val);
+ } else {
+ dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
+ return;
+ }
+ }
+ $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
+ $user->put;
+
+ unless ($self->{isolate}) {
+ DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
+ }
+
+ # perhaps this IS what we want after all
+ # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
+}
+
+sub handle_42 {goto &handle_28}
+
+
+# database
+sub handle_44 {goto &handle_37}
+sub handle_45 {goto &handle_37}
+sub handle_46 {goto &handle_37}
+sub handle_47 {goto &handle_37}
+sub handle_48 {goto &handle_37}
+
+# message and database
+sub handle_49
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ if (eph_dup($line)) {
+ return;
+ }
+
+ if ($pc->[1] eq $main::mycall) {
+ DXMsg::handle_49($self, @$pc);
+ } else {
+ $self->route($pc->[1], $line) unless $self->is_clx;
+ }
+}
+
+# keep alive/user list
+sub handle_50
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ return if (eph_dup($line));
+
+ my $call = $pc->[1];
+
+ my $node = Route::Node::get($call);
+ if ($node) {
+ return unless $node->call eq $self->{call};
+ $node->usercount($pc->[2]) unless $node->users;
+ $node->reset_obs;
+ $node->PC92C_dxchan($self->call, $pc->[-1]);
+
+ # input filter if required
+# return unless $self->in_filter_route($node);
+
+ unless ($self->{isolate}) {
+ DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
+ }
+# $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
+ }
+}
+
+# incoming ping requests/answers
+sub handle_51
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my $to = $pc->[1];
+ my $from = $pc->[2];
+ my $flag = $pc->[3];
+
+ if ($to eq $main::myalias) {
+ dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
+ return;
+ }
+
+ # is it for us?
+ if ($to eq $main::mycall) {
+ if ($flag == 1) {
+ $self->send(pc51($from, $to, '0'));
+ } else {
+ DXXml::Ping::handle_ping_reply($self, $from);
+ }
+ } else {
+ if (eph_dup($line)) {
+ return;
+ }
+ # route down an appropriate thingy
+ $self->route($to, $line);
+ }
+}
+
+sub handle_61 { goto &handle_11; }
+
+# dunno but route it
+sub handle_75
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my $call = $pc->[1];
+ if ($call ne $main::mycall) {
+ $self->route($call, $line);
+ }
+}
+
+# WCY broadcasts
+sub handle_73
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my $call = $pc->[1];
+
+ # do some de-duping
+ my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
+ if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
+ dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
+ return;
+ }
+ $pc = [ map { unpad($_) } @$pc ];
+ if (WCY::dup($d)) {
+ dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
+ return;
+ }
+
+ my $wcy = WCY::update($d, @$pc[2..12]);
+ dbg("WCY: <$pc->[2]> K=$pc->[5] expK=$pc->[6] A=$pc->[4] R=$pc->[7] SFI=$pc->[3] SA=$pc->[8] GMF=$pc->[9] Au=$pc->[10] $pc->[11]\@$pc->[12] route: $origin") if isdbg('progress');
+
+ if (defined &Local::wcy) {
+ my $rep;
+ eval {
+ $rep = Local::wcy($self, @$pc[1..12]);
+ };
+ return if $rep;
+ }
+
+ # broadcast to the eager world
+ send_wcy_spot($self, $line, $d, @$pc[2..12]);
+}
+
+# remote commands (incoming)
+sub handle_84
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
+}
+
+# remote command replies
+sub handle_85
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
+}
+
+# decode a pc92 call: flag call : version : build
+sub _decode_pc92_call
+{
+ my $icall = shift;
+ my @part = split /:/, $icall;
+ my ($flag, $call) = unpack "A A*", $part[0];
+ unless (defined $flag && $flag ge '0' && $flag le '7') {
+ dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
+ return ();
+ }
+ unless ($call && is_callsign($call)) {
+ dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
+ return ();
+ }
+ my $is_node = $flag & 4;
+ my $is_extnode = $flag & 2;
+ my $here = $flag & 1;
+ my $version = $part[1] || 0;
+ my $build = $part[2] || 0;
+ my $ip = $part[3] || '';
+
+ if ($version =~ /[,.]/) {
+ $ip = $version;
+ $version = 0;
+ }
+ $version =~ s/\D+//g;
+ $build =~ s/^0\.//;
+ $build =~ s/\D+//g;
+ if ($ip) {
+ $ip =~ s/,/:/g;
+ $ip =~ s/^::ffff://i;
+ }
+ dbg("$icall = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
+ return ($call, $is_node, $is_extnode, $here, $version, $build, $ip);
+}
+
+# decode a pc92 call: flag call : version : build
+sub _encode_pc92_call
+{
+ my $ref = shift;
+
+ # plain call or value
+ return $ref unless ref $ref;
+
+ my $ext = shift || 0;
+ my $flag = 0;
+ my $call = $ref->call;
+ my $extra = '';
+ $flag |= $ref->here ? 1 : 0;
+ if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
+ $flag |= 4;
+ my $dxchan = DXChannel::get($call);
+ $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
+ if (($ext & 1) && $ref->version) {
+ my $version = $ref->version || 1.0;
+ $version = $version * 100 + 5300 if $version < 50;
+ $extra .= ":" . $version;
+ }
+ }
+ if (($ext & 2) && $ref->ip) {
+ my $ip = $ref->ip;
+ $ip =~ s/:/,/g;
+ $extra .= ':' . $ip;
+ }
+ return "$flag$call$extra";
+}
+
+my %things_add;
+my %things_del;
+
+sub _add_thingy
+{
+ my $parent = shift;
+ my $s = shift;
+ my $dxchan = shift;
+ my $hops = shift;
+
+ my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
+ my @rout;
+
+ # remove spurious IPV6 prefix on IPV4 addresses
+ $build ||= 0;
+ $version ||= 0;
+
+ if ($call) {
+ my $ncall = $parent->call;
+ if ($ncall ne $call) {
+ my $user;
+ my $r;
+
+ # normalise call, delete any unnormalised calls in the users file.
+ # then ignore this thingy
+ my $normcall = normalise_call($call);
+ if ($normcall ne $call) {
+ next if DXChannel::get($call);
+ $user = DXUser::get($call);
+ dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
+ $user->del if $user;
+ $call = $normcall; # this is safe because a route add will ignore duplicates
+ }
+
+ if ($is_node) {
+ dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
+ $user = check_add_user($call, 'A');
+ @rout = $parent->add($call, $version, Route::here($here), $ip);
+ $r = Route::Node::get($call);
+ $r->PC92C_dxchan($dxchan->call, $hops) if $r;
+ if ($version && is_numeric($version) && !$r->K && !$user->K) {
+ my $old = $user->sort;
+ if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
+ $user->sort('S');
+ dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
+ } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
+ unless ($version == 5000 && $build == 0) {
+ $user->sort('A');
+ $build //= 0;
+ dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
+ }
+ }
+ }
+ $r->version($user->version) if $user->version;
+ $r->build($user->build) if $user->build;
+ $r->K(1) if $user->K;
+ } else {
+ dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
+ $user = check_add_user($call, 'U', $parent->call);
+ @rout = $parent->add_user($call, Route::here($here), $ip);
+ $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
+ $r = Route::User::get($call);
+ }
+ if ($ip) {
+ $r->ip($ip);
+ Log('DXProt', "PC92A $call -> $ip on $ncall");
+ }
+ if ($pc92_slug_changes && $parent == $main::routeroot) {
+ $things_add{$call} = Route::get($call);
+ delete $things_del{$call};
+ }
+ $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
+ } else {
+ dbgprintring(10) if isdbg('nologchan');
+ dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
+ }
+ }
+
+ return @rout;
+}
+
+sub _del_thingy
+{
+ my $parent = shift;
+ my $s = shift;
+ my $dxchan = shift;
+ my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
+ my @rout;
+ if ($call) {
+ my $ref;
+ if ($is_node) {
+ $ref = Route::Node::get($call);
+ dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
+ @rout = $ref->del($parent) if $ref;
+ } else {
+ dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
+ $ref = Route::User::get($call);
+ if ($ref) {
+ $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
+ @rout = $parent->del_user($ref);
+ }
+ }
+ if ($pc92_slug_changes && $parent == $main::routeroot) {
+ $things_del{$call} = $ref unless exists $things_add{$call};
+ delete $things_add{$call};
+ }
+ }
+ return @rout;
+}
+
+# this will only happen if we are slugging changes and
+# there are some changes to be sent, it will create an add or a delete
+# or both
+sub gen_pc92_changes
+{
+ my @add = values %things_add;
+ my @del = values %things_del;
+ return (\@add, \@del);
+}
+
+sub clear_pc92_changes
+{
+ %things_add = %things_del = ();
+ $last_pc92_slug = $main::systime;
+}
+
+my $_last_time;
+my $_last_occurs;
+my $_last_pc9x_id;
+
+sub last_pc9x_id
+{
+ return $_last_pc9x_id;
+}
+
+sub gen_pc9x_t
+{
+ if (!$_last_time || $_last_time != $main::systime) {
+ $_last_time = $main::systime;
+ $_last_occurs = 0;
+ return $_last_pc9x_id = $_last_time - $main::systime_daystart;
+ } else {
+ $_last_occurs++;
+ return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
+ }
+}
+
+sub check_pc9x_t
+{
+ my $call = shift;
+ my $t = shift;
+ my $pc = shift;
+ my $create = shift;
+
+ # check that the time is between 0 >= $t < 86400
+ unless ($t >= 0 && $t < 86400) {
+ dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
+ return undef;
+ }
+
+ # check that the time of this pc9x is within tolerance (default 15 mins either way)
+ my $now = $main::systime - $main::systime_daystart ;
+ my $diff = abs($now - $t);
+ unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
+ my $c = ref $call ? $call->call : $call;
+ dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
+ return undef;
+ }
+
+ my $parent = ref $call ? $call : Route::Node::get($call);
+ if ($parent) {
+ # we only do this for external calls whose routing table
+ # record come and go. The reference for mycall is permanent
+ # and not that frequently used, it also never times out, so
+ # the id on it is completely unreliable. Besides, only commands
+ # originating on this box will go through this code...
+ if ($parent->call ne $main::mycall) {
+ my $lastid = $parent->lastid;
+ if (defined $lastid) {
+ if ($t < $lastid) {
+ # note that this is where we determine whether this pc9x has come in yesterday
+ # but is still greater (modulo 86400) than the lastid or is simply an old
+ # duplicate sentence. To determine this we need to do some module 86400
+ # arithmetic. High numbers mean that this is an old duplicate sentence,
+ # low numbers that it is a new sentence.
+ #
+ # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
+ # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
+ # 86378 respectively in the calculation below).
+ #
+ if ($t+86400-$lastid > $pc9x_past_age) {
+ dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
+ return undef;
+ }
+ } elsif ($t == $lastid) {
+ dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
+ return undef;
+ } else {
+ # check that if we have a low number in lastid that yesterday's numbers
+ # (likely in the 85000+ area) don't override them, thus causing flip flopping
+ if ($lastid+86400-$t < $pc9x_past_age) {
+ dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
+ return undef;
+ }
+ }
+ }
+ }
+ } elsif ($create) {
+ $parent = Route::Node->new($call);
+ } else {
+ dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
+ return undef;
+ }
+ if (isdbg('pc92dedupe')) {
+ my $exists = exists $parent->{lastid}; # naughty, naughty :-)
+ my $val = $parent->{lastid};
+ my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
+ dbg("PCPROT: $call pc92 id lastid $s -> $t");
+ }
+ $parent->lastid($t);
+
+ return $parent;
+}
+
+sub pc92_handle_first_slot
+{
+ my $self = shift;
+ my $slot = shift;
+ my $parent = shift;
+ my $t = shift;
+ my $hops = shift;
+ my $oparent = $parent;
+
+ my @radd;
+
+ my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
+ if ($call && $is_node) {
+ if ($call eq $main::mycall) {
+ LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
+ return;
+ }
+ if ($call eq $main::myalias) {
+ LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
+ return;
+ }
+ # this is only accepted from my "self".
+ # this also kills configs from PC92 nodes with external PC19 nodes that are also
+ # locally connected. Local nodes always take precedence. But we remember the lastid
+ # to try to reduce the number of dupe PC92s for this external node.
+ if (DXChannel::get($call) && $call ne $self->{call}) {
+ $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
+ dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
+ return;
+ }
+ if ($is_extnode) {
+ # reparent to external node (note that we must have received a 'C' or 'A' record
+ # from the true parent node for this external before we get one for the this node
+ unless ($parent = Route::Node::get($call)) {
+ if ($is_extnode && $oparent) {
+ @radd = _add_thingy($oparent, $slot, $self, $hops);
+ $parent = $radd[0];
+ } else {
+ dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
+ return;
+ }
+ }
+ $parent = check_pc9x_t($call, $t, 92) || return;
+ $parent->via_pc92(1);
+ $parent->PC92C_dxchan($self->{call}, $hops);
+ }
+ } else {
+ dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
+ return;
+ }
+ $parent->here(Route::here($here));
+ $parent->version($version || $pc19_version) if $version;
+ $parent->build($build) if $build;
+ $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
+ return ($parent, @radd);
+}
+
+# DXSpider routing entries
+sub handle_92
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ my (@radd, @rdel);
+
+ my $pcall = $pc->[1];
+ my $t = $pc->[2];
+ my $sort = $pc->[3];
+ my $hops = $pc->[-1];
+
+ # this catches loops of A/Ds
+# if (eph_dup($line, $pc9x_dupe_age)) {
+# return;
+# }
+
+ if ($pcall eq $main::mycall) {
+ LogDbg('err', "PCPROT: looped back, ignored");
+ return;
+ }
+
+ if ($pcall eq $main::myalias) {
+ LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
+ return;
+ }
+
+ if ($pcall eq $self->{call} && $self->{state} eq 'init') {
+ if ($self->{isolate}) {
+ dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
+ return;
+ } elsif (!$self->user->wantpc9x) {
+ dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
+ return;
+ } else {
+ $self->state('init92');
+ $self->{do_pc9x} = 1;
+ dbg("DXPROT: Do pc9x set on $pcall");
+ }
+ }
+ unless ($self->{do_pc9x}) {
+ dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ # don't create routing entries for D records that don't already exist
+ # this is what causes all those PC92 loops!
+ my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
+ my $oparent = $parent;
+
+ $parent->do_pc9x(1);
+ $parent->via_pc92(1);
+
+ if ($sort eq 'F' || $sort eq 'R') {
+
+ # this is the route finding section
+ # here is where the consequences of the 'find' command
+ # are dealt with
+
+ my $from = $pc->[4];
+ my $target = $pc->[5];
+
+ if ($sort eq 'F') {
+ my $flag;
+ my $ref;
+ my $dxchan;
+ if ($ref = DXChannel::get($target)) {
+ $flag = 1; # we are directly connected
+ } else {
+ $ref = Route::get($target);
+ $dxchan = $ref->dxchan;
+ $flag = 2;
+ }
+ if ($ref && $flag && $dxchan) {
+ $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
+ return;
+ }
+ } elsif ($sort eq 'R') {
+ if (my $dxchan = DXChannel::get($from)) {
+ handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
+ } else {
+ my $ref = Route::get($from);
+ if ($ref) {
+ my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
+ if (@dxchan) {
+ $_->send($line) for @dxchan;
+ } else {
+ dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
+ }
+ } else {
+ dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
+ }
+ }
+ return;
+ }
+
+ } elsif ($sort eq 'K') {
+ $pc92Kin += length $line;
+
+ # remember the last channel we arrived on
+ $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
+
+ my @ent = _decode_pc92_call($pc->[4]);
+
+ if (@ent) {
+ my $add;
+
+ ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
+ return unless $parent; # dupe
+
+ push @radd, $add if $add;
+ $parent->reset_obs;
+ my $call = $parent->call;
+ my $version = $ent[4] || 0;
+ my $build = $ent[5] || 0;
+ $build =~ s/^0\.//;
+ my $oldbuild = $parent->build || 0;
+ my $oldversion = $parent->version || 0;
+ my $user = check_add_user($parent->call, 'S');
+ my $oldsort = $user->sort // '';
+
+ dbg("PCProt PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
+
+ if (is_numeric($version) || is_numeric($build)) {
+ my $changed = 0;
+ if (($oldversion ne $version || $build ne $oldbuild)) {
+ dbg("PCProt PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
+ $user->version($parent->version($version));
+ $user->build($parent->build($build));
+ ++$changed;
+ }
+ if ($oldsort ne 'S') {
+ dbg("PCProt PC92 K node $call updated sort: $sort (was $oldsort)");
+ $user->sort('S');
+ ++$changed;
+ }
+ unless ($user->K) {
+ dbg("PCProt PC92 K node $call updated - marked as PC92 K user");
+ $user->K(1);
+ ++$changed;
+ }
+ $user->put if $changed;
+ $parent->K(1); # mark this as come in on a K
+ } else {
+ dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
+ }
+ dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
+ }
+ } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
+
+ $pc92Ain += length $line if $sort eq 'A';
+ $pc92Cin += length $line if $sort eq 'C';
+ $pc92Din += length $line if $sort eq 'D';
+
+ # remember the last channel we arrived on
+ $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
+
+ # this is the main route section
+ # here is where all the routes are created and destroyed
+
+ # cope with missing duplicate node calls in the first slot
+ my $me = $pc->[4] || '';
+ $me ||= _encode_pc92_call($parent) unless $me ;
+
+ my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
+
+ if (@ent) {
+
+ # look at the first one which will always be a node of some sort
+ # except in the case of 'A' or 'D' in which the $pcall is used
+ # otherwise use the node call and update any information
+ # that needs to be done.
+ my $add;
+
+ ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
+ return unless $parent; # dupe
+
+ shift @ent;
+ push @radd, $add if $add;
+ }
+
+ # do a pass through removing any references to either mycall
+ my @nent;
+ for (@ent) {
+ my $dxc;
+ next unless $_ && @$_;
+ if ($_->[0] eq $main::mycall) {
+ dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
+ next;
+ }
+ if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
+ LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
+ next;
+ }
+
+ push @nent, $_;
+ }
+
+ if ($sort eq 'A') {
+ for (@nent) {
+ push @radd, _add_thingy($parent, $_, $self, $hops);
+ }
+ } elsif ($sort eq 'D') {
+ for (@nent) {
+ push @rdel, _del_thingy($parent, $_, $self);
+ }
+ } elsif ($sort eq 'C') {
+ my (@nodes, @users);
+
+ # we reset obscounts on config records as well as K records
+ $parent->reset_obs;
+ dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
+
+ #
+ foreach my $r (@nent) {
+ # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
+ if ($r->[0]) {
+ if ($r->[1]) {
+ push @nodes, $r->[0];
+ } else {
+ push @users, $r->[0];
+ }
+ } else {
+ dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
+ }
+ }
+
+ my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
+
+ # add users here
+ foreach my $r (@nent) {
+ my $call = $r->[0];
+ if ($call) {
+ push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
+ }
+ }
+ # del users here
+ foreach my $r (@$dnodes) {
+ push @rdel,_del_thingy($parent, [$r, 1], $self);
+ }
+ foreach my $r (@$dusers) {
+ push @rdel,_del_thingy($parent, [$r, 0], $self);
+ }
+
+ # remember this last PC92C for rebroadcast on demand
+ $parent->last_PC92C($line);
+ } else {
+ dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
+ return;
+ }
+
+ foreach my $r (@rdel) {
+ next unless $r;
+
+ $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
+ $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
+ }
+ my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
+ my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
+ unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
+ $self->route_pc19($pcall, undef, @pc19) if @pc19;
+ $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
+ }
+
+ # broadcast it if we get here
+ $self->broadcast_route_pc9x($pcall, undef, $line, 0);
+}
+
+# get all the routes for a thing, bearing in mind that the thing (e.g. a user)
+# might be on two or more nodes at the same time or that there may be more than
+# one equal distance neighbour to a node.
+#
+# What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
+# a Route::findroutes is done on each of those two nodes, the best route(s) taken from
+# each and then combined to give a set of dxchans to send the PC9x record down
+#
+sub find_pc9x_routes
+{
+ my $to = shift;
+ my $ref = Route::get($to);
+ my @parent;
+ my %cand;
+
+ if ($ref->isa('Route::User')) {
+ my $dxchan = DXChannel::get($to);
+ push @parent, $to if $dxchan;
+ push @parent, $ref->parents;
+ } else {
+ @parent = $to;
+ }
+ foreach my $p (@parent) {
+ my $lasthops;
+ my @routes = Route::findroutes($p);
+ foreach my $r (@routes) {
+ $lasthops = $r->[0] unless defined $lasthops;
+ if ($r->[0] == $lasthops) {
+ $cand{$r->[1]->call} = $r->[1];
+ } else {
+ last;
+ }
+ }
+ }
+ return values %cand;
+}
+
+sub handle_93
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+# $self->{do_pc9x} ||= 1;
+
+ my $pcall = $pc->[1]; # this is now checked earlier
+
+ # remember that we are converting PC10->PC93 and self will be $main::me if it
+ # comes from us
+ unless ($self->{do_pc9x}) {
+ dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ my $t = $pc->[2];
+ my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
+
+ my $to = uc $pc->[3];
+ my $from = uc $pc->[4];
+ my $via = uc $pc->[5];
+ my $text = $pc->[6];
+ my $onode = uc $pc->[7];
+ $onode = $pcall if @$pc <= 8;
+
+ # this is catch loops caused by bad software ...
+ if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
+ return;
+ }
+
+ if (isdbg('progress')) {
+ my $vs = $via ne '*' ? " via $via" : '';
+ my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
+ dbg($s);
+ }
+
+ # will we allow it at all?
+ if ($censorpc) {
+ my @bad;
+ if (@bad = BadWords::check($text)) {
+ dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ # if this is a 'bad spotter' user then ignore it
+ my $nossid = $from;
+ $nossid =~ s/-\d+$//;
+ if ($badspotter->in($nossid)) {
+ dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # ignore PC93 coming in from outside this node with a target of local
+ if ($to eq 'LOCAL' && $self != $main::me) {
+ dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ # if it is routeable then then treat it like a talk
+ my $ref = Route::get($to);
+ if ($ref) {
+ my $dxchan;
+
+ # convert to PC10 or local talks where appropriate
+ # PC93 capable nodes of the same hop count all get a copy
+ # if there is a PC10 node then it will get a copy and that
+ # will be it. Hopefully such a node will not figure highly
+ # in the route list, unless it is local, 'cos it don't issue PC92s!
+ # note that both local and PC93s at the same time are possible if the
+ # user on more than one node.
+ my @routes = find_pc9x_routes($to);
+ my $lasthops;
+ foreach $dxchan (@routes) {
+ if (ref $dxchan && $dxchan->isa('DXChannel')) {
+ if ($dxchan->{do_pc9x}) {
+ $dxchan->send($line);
+ } else {
+ $dxchan->talk($from, $to, $via, $text, $onode);
+ }
+ } else {
+ dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
+ }
+ }
+ return;
+
+ } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
+ # announces
+ my $sysop = $to eq 'SYSOP' ? '*' : ' ';
+ my $wx = $to eq 'WX' ? '1' : '0';
+ my $local = $via eq 'LOCAL' ? '*' : $via;
+
+ $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
+ return if $via eq 'LOCAL';
+ } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
+ # chat messages really only locally connected users
+ $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
+ }
+
+ # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
+ $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
+}
+
+# if get here then rebroadcast the thing with its Hop count decremented (if
+# there is one). If it has a hop count and it decrements to zero then don't
+# rebroadcast it.
+#
+# NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
+# REBROADCAST!!!!
+#
+
+sub handle_default
+{
+ my $self = shift;
+ my $pcno = shift;
+ my $line = shift;
+ my $origin = shift;
+ my $pc = shift;
+
+ unless (eph_dup($line)) {
+ if ($pcno >= 90) {
+ my $pcall = $pc->[1];
+ unless (is_callsign($pcall)) {
+ dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
+ return;
+ }
+ my $t = $pc->[2];
+ my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
+ $self->broadcast_route_pc9x($pcall, undef, $line, 0);
+ } else {
+ unless ($self->{isolate}) {
+ DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
+ }
+ }
+ }
+}
+
+1;
projects / spider.git / blobdiff