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#! perl # optional depends=tcp |
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|
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# http server - this tries to speak enough of http 1.1 (and 1.0) |
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# to work with browsers. it does not even attempt to be a complete |
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# implementation, although it should be mostly correct for that it does. |
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|
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sub send { |
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my $self = $_[0]; |
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|
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if (length $self->{wbuf}) { |
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$self->{wbuf} .= $_[1]; |
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} else { |
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$self->{wbuf} .= $_[1]; |
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|
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my $len = syswrite $self->{fh}, $self->{wbuf}; |
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substr $self->{wbuf}, 0, $len, ""; |
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|
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$self->{ww} = AE::io $self->{fh}, 1, sub { |
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my $len = syswrite $self->{fh}, $self->{wbuf}; |
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substr $self->{wbuf}, 0, $len, ""; |
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|
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delete $self->{ww} unless $len; # in case of errors, stop |
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delete $self->{ww} unless length $self->{wbuf}; |
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} if length $self->{wbuf}; |
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} |
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} |
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|
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sub fatal { |
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my ($self) = @_; |
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|
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$self->send ("HTTP/1.1 500 internal error\015\012"); |
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} |
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|
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sub respond { |
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$_[0]->send ("HTTP/1.1 $_[1]\015\012" |
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. "content-length: " . (0 + length $_[2]) . "\015\012" |
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. "access-control-allow-origin: *\015\012" |
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. $_[0]{ohdr} |
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. "$_[3]\015\012" . ($_[0]{give_head} ? "" : $_[2])); |
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} |
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|
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my $cache_headers = "cache-control: max-age=8640000\015\012" |
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. "etag: \"0\"\015\012"; |
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|
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sub content_type { |
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return "content-type: image/png\015\012" if $_[0] =~ /^\x89PNG/; |
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return "content-type: image/jpeg\015\012" if $_[0] =~ /^......JFIF/s; |
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return "content-type: audio/wav\015\012" if $_[0] =~ /^RIFF/; |
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return "content-type: audio/ogg\015\012" if $_[0] =~ /^OggS/; |
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return "content-type: text/html\015\012" if $_[0] =~ /^</; |
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|
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"content-type: text/plain\015\012" |
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} |
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|
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sub handle_con { |
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my ($self) = @_; |
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|
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my ($method, $uri, $http, $req, $close, $len); |
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|
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while () { |
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while ($self->{rbuf} =~ s/^( (?: [^\015]+ | . )+? \015\012)\015\012//xs) { |
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$req = $1; |
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|
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# we ignore headers atm. |
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|
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$req =~ m%^(\S+) (\S+) HTTP/([0-9.]+)\015\012%ig |
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or return $self->respond ("400 bad request"); |
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|
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$method = uc $1; |
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$uri = $2; |
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$http = $3; |
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|
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$uri =~ s%^http://[^/]*%%i; # just in case |
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$uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; # %-decode |
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|
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if (0) { |
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my %hdr; |
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|
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$hdr{lc $1} .= ",$2" |
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while $req =~ /\G |
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([^:\000-\037]*): |
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[\011\040]* |
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((?: [^\012]+ | \012[\011\040] )*) |
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\012 |
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/gxc; |
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|
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$req =~ /\G$/ |
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or return $self->respond ("400 bad request"); |
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|
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# remove the "," prefix we added to all headers above |
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substr $_, 0, 1, "" |
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for values %hdr; |
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} |
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|
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if ($http == 1.0) { |
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if ($req =~ /^connection\s*:\s*keep-alive/mi) { |
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$self->{ohdr} = "connection: keep-alive\015\012"; |
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} else { |
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$self->{ohdr} = "connection: close\015\012"; |
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$close = 1; |
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} |
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} |
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|
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$self->{give_head} = $method eq "HEAD" |
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and $method = "GET"; |
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|
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cf::debug "HTTP $method: $self->{id} $uri"; |
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|
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if ($method ne "GET") { |
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$self->respond ("405 no $method"); |
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next; |
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} |
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|
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# not needed for GET, but who knows |
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$self->send ("HTTP/1.1 100 go on\015\012") |
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if $req =~ /^expect:.*\b100-continue\b/i; |
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|
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if ($uri =~ m%^/([0-9a-f]+)(M?)$%) { # faces |
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my $want_meta = $2; |
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my $idx = $cf::face::HASH{pack "H*", $1}; |
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|
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$idx |
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or do { $self->respond ("404 illegal face name"), next }; |
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|
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if ($req =~ /if-none-match/i) { # dirtiest hack evar |
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$self->respond ("304 not modified", "", $cache_headers); |
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next; |
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} |
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|
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my $type = cf::face::get_type $idx; |
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my $data = cf::face::get_data $idx; |
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|
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(my $meta, $data) = unpack "(w/a*)*", $data |
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if $type & 1; |
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|
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if ($want_meta) { |
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if ($type & 1) { |
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$self->respond ("200 OK", $meta, "content-type: text/plain\015\012" . $cache_headers); |
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} else { |
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$self->respond ("404 type $type has no metadata"); |
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} |
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} else { |
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$self->respond ("200 OK", $data, (content_type $data) . $cache_headers); |
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} |
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|
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} elsif (my $idx = (cf::face::find "res/http$uri") || (cf::face::find "res/http${uri}index.html")) { |
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# TODO: use etag (shudder) |
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my $data = cf::face::get_data $idx; |
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$self->respond ("200 OK", $data, (content_type $data) . $cache_headers); |
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|
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} elsif (cf::face::find "res/http$uri/index.html") { |
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$self->respond ("302 dirslash", "", "location: $uri/\015\012"); |
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|
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} elsif ($uri eq "/debug") { # for debugging |
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my @body = <<EOF; |
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<html><head><style> |
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th:nth-child(1) { text-align: right; } |
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th:nth-child(2) { text-align: left; } |
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th:nth-child(3) { text-align: right; } |
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th:nth-child(4) { text-align: left; } |
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th:nth-child(5) { text-align: left; } |
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td:nth-child(1) { text-align: right; font-family: monospace;} |
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td:nth-child(2) { text-align: left; font-family: monospace;} |
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td:nth-child(3) { text-align: right; font-family: monospace;} |
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td:nth-child(4) { text-align: left; } |
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td:nth-child(5) { text-align: left; } |
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</style><body> |
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EOF |
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for my $type (6, 5, 4, 3, 2, 1, 0) { |
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push @body, "<h1>$type</h1><table><tr><th>#</th><th>csum</th><th>size</th><th>name</th><th>meta</th></tr>"; |
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|
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for (1 .. cf::face::faces_size - 1) { |
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cf::cede_to_tick; |
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|
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next if $type != cf::face::get_type $_; |
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my $name = cf::face::get_name $_; |
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my $id = unpack "H*", cf::face::get_csum $_, 0; |
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push @body, "<tr><td>$_</td><td>$id</td><td>$cf::face::SIZE[0][$_]</td><td><a href='$id'>$name</a></td>"; |
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push @body, "<td><a href='${id}M'>meta</a>" if $type & 1; |
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push @body, "</tr>"; |
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} |
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|
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push @body, "</table>"; |
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} |
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|
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push @body, "</body></html>"; |
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|
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my $body = join "", @body; |
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utf8::encode $body; |
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$self->respond ("200 OK", $body, "content-type: text/html\015\012"); |
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|
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} else { |
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$self->respond ("404 not found"); |
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} |
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|
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cf::cede_to_tick; |
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} |
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|
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return if $close; # http 1.0 only currently |
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return if length $self->{rbuf} > 8192; # headers too long |
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|
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Coro::AnyEvent::readable $self->{fh}, 6; |
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|
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$len = sysread $self->{fh}, $self->{rbuf}, 4096, length $self->{rbuf}; |
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|
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return if $len <= 0; |
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}; |
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} |
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|
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our $DETECTOR = ext::tcp::register http => 64, sub { |
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# regex avoids conflict with websockets, which use /ws |
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m{^(?i:GET|HEAD|OPTIONS) \ (?! (?i:http://[^/]+)? /ws \ ) }x |
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}, sub { |
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my $self = bless { |
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id => $_[0], |
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fh => $_[1], |
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rbuf => $_[2], |
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wbuf => "", |
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}; |
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|
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$self->{async} = Coro::async_pool { |
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$Coro::current->nice (4); |
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$Coro::current->{desc} = "http $self->{id}"; |
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|
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$self->handle_con; |
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}; |
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}; |
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|
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cf::register_exticmd http_faceurl => sub { |
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my ($ns) = @_; |
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|
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"/" |
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}; |
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|
