| 1 | #! perl |
1 | #! perl # mandatory |
| 2 | |
2 | |
| 3 | # this listens for new tcp connections and hands them over to the server core |
3 | # this listens for new tcp connections and hands them over to the server core |
| 4 | # wether this being an extension introduces or reduces stability problems |
4 | # whether this being an extension introduces or reduces stability problems |
| 5 | # is unknown as of today. |
5 | # is unknown as of today. |
| 6 | |
6 | |
| 7 | use Socket; |
7 | use Socket; |
| 8 | use IO::Socket::INET; |
8 | use AnyEvent::Socket; |
| 9 | |
9 | |
| 10 | our $LISTEN = new IO::Socket::INET |
10 | CONF BIND_ADDRESSES = [[undef, 13327]]; |
| 11 | LocalPort => cf::settings->csport, |
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| 12 | Listen => 1, |
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| 13 | Blocking => 0, # bugfix workaround for Event calling handler twice :( |
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| 14 | ReuseAddr => 1; |
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| 15 | |
11 | |
| 16 | if (!$LISTEN) { |
12 | our $MAX_DETECT = 16; # how many bytes to raed to identify the protocol |
| 17 | # extension yes, completely stupid, not yet |
13 | |
| 18 | warn "unable to establish listen sockect, exiting.\n"; |
14 | our @LISTENERS; |
| 19 | exit (2); |
15 | |
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16 | for (@$BIND_ADDRESSES) { |
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17 | my ($host, $port) = @$_; |
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18 | cf::info "listening on ", (format_hostport $host, $port), "\n"; |
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19 | |
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20 | push @LISTENERS, tcp_server $host, $port, sub { |
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21 | my ($fh, $host, $port) = @_ |
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22 | or return; |
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23 | |
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24 | my $lhost = AnyEvent::Socket::format_address |
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25 | +(AnyEvent::Socket::unpack_sockaddr getsockname $fh)[1]; |
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26 | |
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27 | my $id = format_hostport $host, $port; |
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28 | |
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29 | cf::info "$id: new connection\n" |
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30 | if $lhost ne $host; # do not log connections from the host, e.g. for watchdogs |
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31 | |
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32 | my $buf; |
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33 | my $w; $w = AE::io $fh, 0, sub { |
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34 | my $len = sysread $fh, $buf, 512, length $buf; |
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35 | |
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36 | if ($len) { |
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37 | if ($buf =~ /^..version /s) { # deliantra protocol |
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38 | undef $w; |
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39 | |
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40 | my $ns = cf::client::create fileno $fh, $host; |
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41 | $ns->inbuf_append ($buf); |
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42 | |
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43 | } elsif ($buf =~ /^GET / && defined &ext::http::server) { # http or websocket |
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44 | undef $w; |
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45 | |
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46 | &ext::http::server ($id, $fh, $buf); |
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47 | |
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48 | } elsif (length $buf >= $MAX_DETECT) { # unable to detect protocol |
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49 | undef $w; |
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50 | |
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51 | cf::info "$id: protocol detection error\n"; |
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52 | } |
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53 | } else { |
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54 | undef $w; |
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55 | |
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56 | cf::info "$id: read error during protocol detection\n"; |
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57 | } |
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58 | }; |
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59 | }; |
| 20 | } |
60 | } |
| 21 | |
61 | |
| 22 | Event->io (fd => $LISTEN, nice => 1, poll => 'r', data => cf::WF_AUTOCANCEL, cb => sub { |
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| 23 | my ($fh, $peername) = $LISTEN->accept |
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| 24 | or return; |
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| 25 | |
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| 26 | my $fd = fileno $fh; |
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| 27 | my $host = inet_ntoa +(sockaddr_in $peername)[1]; |
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| 28 | |
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| 29 | warn "new connection from $host\n"; |
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| 30 | |
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| 31 | cf::client::create $fd, $host; |
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| 32 | }); |
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