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#! perl # mandatory |
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|
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# this listens for new tcp connections and hands them over to the server core |
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# whether this being an extension introduces or reduces stability problems |
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# is unknown as of today. |
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|
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use Socket; |
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use AnyEvent::Socket; |
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|
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CONF BIND_ADDRESSES = [[undef, 13327]]; |
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|
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our $MAX_DETECT = 16; # how many bytes to raed to identify the protocol |
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|
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our @LISTENERS; |
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|
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sub flash_policy_server { |
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my ($fh) = @_; |
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|
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# socket policy file, just write answer and hope the kernel accepts it in one go |
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syswrite $fh, <<EOF . "\x00" |
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<?xml version="1.0"?> |
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<!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd"> |
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<cross-domain-policy> |
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<allow-access-from domain="*" to-ports="*"/> |
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</cross-domain-policy> |
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EOF |
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} |
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|
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for (@$BIND_ADDRESSES) { |
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my ($host, $port) = @$_; |
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cf::info "listening on ", (format_hostport $host, $port), "\n"; |
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|
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push @LISTENERS, tcp_server $host, $port, sub { |
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my ($fh, $host, $port) = @_ |
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or return; |
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|
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my $lhost = AnyEvent::Socket::format_address |
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+(AnyEvent::Socket::unpack_sockaddr getsockname $fh)[1]; |
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|
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my $id = format_hostport $host, $port; |
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|
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cf::info "$id: new connection\n" |
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if $lhost ne $host; # do not log connections from the host, e.g. for watchdogs |
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|
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my $buf; |
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my $w; $w = AE::io $fh, 0, sub { |
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my $len = sysread $fh, $buf, 512, length $buf; |
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|
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if ($len) { |
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if ($buf =~ /^..version /s) { # deliantra protocol |
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undef $w; |
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|
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my $ns = cf::client::create fileno $fh, $host; |
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$ns->inbuf_append ($buf); |
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|
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} elsif ($buf =~ /^GET / && defined &ext::http::server) { # http or websocket |
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undef $w; |
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|
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&ext::http::server ($id, $fh, $buf); |
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|
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} elsif ($buf =~ /^<policy-file-request\/>\x00/) { |
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undef $w; |
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|
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flash_policy_server $fh; |
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|
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} elsif (length $buf >= $MAX_DETECT) { # unable to detect protocol |
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undef $w; |
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|
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cf::info "$id: protocol detection error\n"; |
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} |
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} else { |
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undef $w; |
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|
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cf::info "$id: read error during protocol detection\n"; |
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} |
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}; |
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}; |
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} |
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