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7 | use Socket; |
7 | use Socket; |
8 | use AnyEvent::Socket; |
8 | use AnyEvent::Socket; |
9 | |
9 | |
10 | CONF BIND_ADDRESSES = [[undef, 13327]]; |
10 | CONF BIND_ADDRESSES = [[undef, 13327]]; |
11 | |
11 | |
12 | our $MAX_DETECT = 16; # how many bytes to raed to identify the protocol |
12 | our $MAX_DETECT; # how many bytes to read to identify the protocol |
13 | |
13 | |
14 | our @LISTENERS; |
14 | our @LISTENERS; |
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15 | our @DETECTORS; |
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|
16 | our %DETECTORS; |
15 | |
17 | |
16 | sub flash_policy_server { |
18 | sub _update_detectors { |
17 | my ($fh) = @_; |
19 | $MAX_DETECT = List::Util::max map $_->[1], values %DETECTORS; |
18 | |
20 | |
19 | # socket policy file, just write answer and hope the kernel accepts it in one go |
21 | use Data::Dump; |
20 | syswrite $fh, <<EOF . "\x00" |
22 | ddx [$MAX_DETECT, \%DETECTORS]; |
21 | <?xml version="1.0"?> |
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22 | <!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd"> |
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23 | <cross-domain-policy> |
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24 | <allow-access-from domain="*" to-ports="*"/> |
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25 | </cross-domain-policy> |
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26 | EOF |
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27 | } |
23 | } |
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24 | |
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25 | sub register($$$$) { |
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26 | my ($name, $max_detect, $detect, $serve) = @_; |
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27 | |
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28 | $DETECTORS{$name} = [$max_detect, $detect, $serve]; |
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29 | _update_detectors; |
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30 | |
|
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31 | Guard::guard { |
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32 | delete $DETECTORS{$name}; |
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33 | _update_detectors; |
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34 | } |
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35 | } |
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36 | |
|
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37 | our $deliantra_detector = ext::tcp::register deliantra => 10, sub { |
|
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38 | /^..version /s |
|
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39 | }, sub { |
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40 | my $ns = cf::client::create fileno $_[1], $_[0]; |
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41 | $ns->inbuf_append ($_[2]); |
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42 | }; |
28 | |
43 | |
29 | for (@$BIND_ADDRESSES) { |
44 | for (@$BIND_ADDRESSES) { |
30 | my ($host, $port) = @$_; |
45 | my ($host, $port) = @$_; |
31 | cf::info "listening on ", (format_hostport $host, $port), "\n"; |
46 | cf::info "listening on ", (format_hostport $host, $port), "\n"; |
32 | |
47 | |
… | |
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37 | my $lhost = AnyEvent::Socket::format_address |
52 | my $lhost = AnyEvent::Socket::format_address |
38 | +(AnyEvent::Socket::unpack_sockaddr getsockname $fh)[1]; |
53 | +(AnyEvent::Socket::unpack_sockaddr getsockname $fh)[1]; |
39 | |
54 | |
40 | my $id = format_hostport $host, $port; |
55 | my $id = format_hostport $host, $port; |
41 | |
56 | |
42 | cf::info "$id: new connection\n" |
57 | cf::info "$id: accepted connection.\n" |
43 | if $lhost ne $host; # do not log connections from the host, e.g. for watchdogs |
58 | if $lhost ne $host; # do not log connections from the host, e.g. for watchdogs |
44 | |
59 | |
45 | my $buf; |
60 | my $buf; |
46 | my $w; $w = AE::io $fh, 0, sub { |
61 | my $w; $w = AE::io $fh, 0, sub { |
47 | my $len = sysread $fh, $buf, 512, length $buf; |
62 | my $len = sysread $fh, $buf, 512, length $buf; |
48 | |
63 | |
49 | if ($len) { |
64 | if ($len) { |
50 | if ($buf =~ /^..version /s) { # deliantra protocol |
65 | for ($buf) { |
|
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66 | while (my ($name, $v) = each %DETECTORS) { |
|
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67 | if (my $cb = $v->[1]()) { |
51 | undef $w; |
68 | undef $w; |
|
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69 | cf::debug "$id: detected protocol $name.\n"; |
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70 | $v->[2]($id, $fh, $buf); |
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71 | return; |
|
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72 | } |
|
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73 | } |
52 | |
74 | |
53 | my $ns = cf::client::create fileno $fh, $host; |
75 | if (length >= $MAX_DETECT) { # unable to detect protocol |
54 | $ns->inbuf_append ($buf); |
|
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55 | |
|
|
56 | } elsif ($buf =~ /^GET / && defined &ext::http::server) { # http or websocket |
|
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57 | undef $w; |
76 | undef $w; |
58 | |
77 | cf::debug "$id: data received, but cannot detect protocol, closing.\n"; |
59 | &ext::http::server ($id, $fh, $buf); |
|
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60 | |
|
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61 | } elsif ($buf =~ /^<policy-file-request\/>\x00/) { |
|
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62 | undef $w; |
78 | } |
63 | |
|
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64 | flash_policy_server $fh; |
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65 | |
|
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66 | } elsif (length $buf >= $MAX_DETECT) { # unable to detect protocol |
|
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67 | undef $w; |
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68 | |
|
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69 | cf::info "$id: protocol detection error\n"; |
|
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70 | } |
79 | } |
71 | } else { |
80 | } else { |
72 | undef $w; |
81 | undef $w; |
73 | |
|
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74 | cf::info "$id: read error during protocol detection\n"; |
82 | cf::info "$id: read error during protocol detection ($!)\n"; |
75 | } |
83 | } |
76 | }; |
84 | }; |
77 | }; |
85 | }; |
78 | } |
86 | } |
79 | |
87 | |