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/cvs/deliantra/server/ext/tcp_http.ext
Revision: 1.6
Committed: Wed Nov 7 01:21:27 2012 UTC (11 years, 6 months ago) by root
Branch: MAIN
Changes since 1.5: +13 -2 lines
Log Message:
http/1.0 keepalive hack

File Contents

# Content
1 #! perl # optional depends=tcp
2
3 # http server
4
5 sub send {
6 my $self = $_[0];
7
8 $self->{wbuf} .= $_[1];
9
10 $self->{ww} ||= AE::io $self->{fh}, 1, sub {
11 my $len = syswrite $self->{fh}, $self->{wbuf};
12 substr $self->{wbuf}, 0, $len, "";
13
14 delete $self->{ww} unless length $self->{wbuf};
15 };
16 }
17
18 sub fatal {
19 my ($self) = @_;
20
21 $self->send ("HTTP/1.1 500 internal error\015\012");
22 delete $self->{rw};
23 }
24
25 sub respond {
26 $_[0]->send ("HTTP/1.1 $_[1]\015\012"
27 . "content-length: " . (0 + length $_[2]) . "\015\012"
28 . "access-control-allow-origin: *\015\012"
29 . $_[0]{ohdr}
30 . "$_[3]\015\012$_[2]");
31 }
32
33 my $cache_headers = "cache-control: max-age=8640000\015\012"
34 . "etag: \"0\"\015\012";
35
36 sub content_type {
37 return "content-type: image/png\015\012" if $_[0] =~ /^\x89PNG/;
38 return "content-type: image/jpeg\015\012" if $_[0] =~ /^......JFIF/s;
39 return "content-type: audio/wav\015\012" if $_[0] =~ /^RIFF/;
40 return "content-type: audio/ogg\015\012" if $_[0] =~ /^OggS/;
41
42 "content-type: text/plain\015\012"
43 }
44
45 sub handle_req {
46 my ($self) = @_;
47
48 while ($self->{rbuf} =~ s/^( (?: [^\015]+ | . )+? )\015\012\015\012//xs) {
49 my $req = $1;
50
51 # we ignore headers atm.
52
53 $req =~ m%^GET (\S+) HTTP/([0-9.]+)\015\012%i
54 or return $self->fatal;
55
56 my $uri = $1;
57 my $http = $2;
58
59 if ($http == 1.0) {
60 if ($req =~ /^connection\s*:\s*keep-alive/mi) {
61 $self->{ohdr} = "connection: keep-alive\015\012";
62 } else {
63 $self->{ohdr} = "connection: close\015\012";
64 delete $self->{rw};
65 }
66 }
67
68 $uri =~ s%^http://[^/]*%%i; # just in case
69
70 cf::debug "HTTP GET: $self->{id} $uri";
71
72 if ($uri =~ m%^/([0-9a-f]+)(M?)$%) { # faces
73 my $want_meta = $2;
74 my $idx = $cf::FACEHASH{pack "H*", $1};
75
76 $idx
77 or do { $self->respond ("404 illegal face name"), next };
78
79 if ($req =~ /if-none-match/i) { # dirtiest hack evar
80 $self->respond ("304 not modified", "", $cache_headers);
81 next;
82 }
83
84 my $type = cf::face::get_type $idx, 1;
85 my $data = cf::face::get_data $idx, 1;
86
87 (my $meta, $data) = unpack "(w/a*)*", $data
88 if $type & 1;
89
90 if ($want_meta) {
91 if ($type & 1) {
92 $self->respond ("200 OK", $meta, "content-type: text/plain\015\012" . $cache_headers);
93 } else {
94 $self->respond ("404 type $type has no metadata");
95 }
96 } else {
97 $self->respond ("200 OK", $data, (content_type $data) . $cache_headers);
98 }
99
100 } elsif ($uri eq "/debug") { # for debugging
101 my @body = "<html><body>";
102
103 for my $type (6, 5, 4, 3, 2, 1, 0) {
104 push @body, "<h1>$type</h1>";
105
106 for (1 .. cf::face::faces_size - 1) {
107 next if $type != cf::face::get_type $_;
108 my $name = cf::face::get_name $_;
109 my $id = unpack "H*", cf::face::get_chksum $_, 1;
110 push @body, "$_ <a href='$id'>$name ($id)</a>";
111 push @body, " <a href='${id}M'>(meta)</a>" if $type & 1;
112 push @body, "<br>";
113 }
114 }
115
116 push @body, "</body></html>";
117
118 $self->respond ("200 OK", (join "", @body), "content-type: text/html\015\012");
119 } elsif ($uri eq "/ws" && defined &ext::ws::server) {
120 &ext::ws::server ($self->{id}, $self->{fh}, "$req\015\012\015\012$self->{rbuf}");
121
122 %$self = ();
123
124 } elsif ($uri eq "/") {
125 $self->respond ("302 hack", "", "location: http://cvs.schmorp.de/deliantra/html5client/client.html\015\012");
126
127 } else {
128 $self->respond ("404 not found");
129 }
130 }
131 }
132
133 our $DETECTOR = ext::tcp::register http => 64, sub {
134 # regex avoids conflict with websockets, which use /ws
135 m{^(?i:GET|HEAD|OPTIONS) \ (?! (?i:http://[^/]+)? /ws \ ) }x
136 }, sub {
137 my $self = bless {
138 id => $_[0],
139 fh => $_[1],
140 rbuf => $_[2],
141 wbuf => "",
142 };
143
144 $self->{rw} = AE::io $self->{fh}, 0, sub {
145 my $len = sysread $self->{fh}, $self->{rbuf}, 4096, length $self->{rbuf};
146
147 if ($len == 0) {
148 delete $self->{rw};
149 } else {
150 $self->handle_req;
151
152 delete $self->{rw} if length $self->{rbuf} > 8192; # headers too long
153 }
154 };
155
156 $self->handle_req; # in the unlikely case of the buffer already forming a valid request
157 };
158
159 cf::register_exticmd http_faceurl => sub {
160 my ($ns) = @_;
161
162 "/"
163 };
164