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#!/usr/bin/perl |
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|
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use IO::Socket::INET; |
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|
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use KGS::Protocol; |
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use KGS::Messages; |
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|
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use KGS::Listener::Debug; |
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|
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use Fcntl; |
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use FileHandle; |
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|
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my $l = new IO::Socket::INET LocalPort => 2379, Listen => 1, ReuseAddr => 1; |
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|
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my $prot = new KGS::Protocol; |
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my $sgen = new KGS::Protocol::Generator; |
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|
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(my $listener = mylistener->new)->listen ($prot, "any"); |
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|
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print "connect with cgoban2 to localhost:2379 to see a protocol dump.\n"; |
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print "ready.\n"; |
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|
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sysopen TRACE, "cgoban2.trace", O_CREAT|O_APPEND|O_WRONLY |
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or die "cgoban2.trace: $!"; |
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TRACE->autoflush(1); |
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|
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while (my $l = $l->accept) { |
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if (fork == 0) { |
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printf TRACE "$$ + %d\n", int time; |
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|
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my $r = new IO::Socket::INET PeerHost => KGS::Protocol::KGSHOST, PeerPort => KGS::Protocol::KGSPORT; |
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$prot->handshake ($r); |
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{ |
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sysread $l, my $buf, 1; |
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$buf = chr 3; |
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syswrite $l, $buf, 1; |
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} |
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|
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my $rlen = 0; |
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my $sbuf = ""; |
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|
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my $Rb = ""; |
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print "connection established\n"; |
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(vec $Rb, fileno $l, 1) = 1; |
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(vec $Rb, fileno $r, 1) = 1; |
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while (select my $rb = $Rb, undef, undef, undef) { |
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if (vec $rb, fileno $l, 1) { |
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last unless sysread $l, my $buf, 8192; |
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syswrite $r, $buf, 8192; |
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|
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printf TRACE "$$ C %d %4d %s\n", int time, length $buf, unpack "H*", $buf; |
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|
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$sbuf .= $buf; |
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|
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for (;;) { |
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if (!$rlen and 2 <= length $sbuf) { |
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$rlen = ($sgen->{client_state} >> 24) ^ unpack "v", $sbuf; |
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} |
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|
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if ($rlen and $rlen <= length $sbuf) { |
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my $pkt = substr $sbuf, 0, $rlen, ""; |
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$sgen->dec_client ($pkt); |
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|
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my $type = unpack "xx v", $pkt; |
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my $msg = eval { $KGS::Messages::dec_client{$type} }; |
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warn "ERROR: $@" if $@; |
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if ($msg) { |
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$msg = $msg->(substr $pkt, 4); |
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|
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$prot->{generator}->set_server_seed ($msg->{name}) if $msg->{type} eq "login"; |
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|
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delete $msg->{data} if $msg->{type} eq "userpic"; |
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|
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print KGS::Listener::Debug::dumpmsg "\nCLIENT", $msg; |
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} else { |
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print "\007\n\nUNKNOWN PACKET TYPE RECEIVED FROM CLIENT:\n"; |
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print KGS::Listener::Debug::dumpmsg "CLIENT: UNKNOWN PACKET", $msg; |
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} |
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|
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$rlen = 0; |
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} else { |
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last; |
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} |
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} |
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} |
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if (vec $rb, fileno $r, 1) { |
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last unless sysread $r, my $buf, 8192; |
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syswrite $l, $buf, 8192; |
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|
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printf TRACE "$$ S %d %4d %s\n", int time, length $buf, unpack "H*", $buf; |
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|
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eval { |
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$prot->feed_data ($buf); |
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}; |
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warn "ERROR: $@" if $@; |
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} |
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} |
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print "closing connection.\n"; |
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exit; |
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} |
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} |
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|
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package mylistener; |
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|
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use base KGS::Listener; |
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|
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sub inject { |
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my ($self, $msg) = @_; |
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|
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delete $msg->{data} if $msg->{type} eq "userpic"; |
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|
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print KGS::Listener::Debug::dumpmsg "\nSERVER", $msg; |
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} |
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