1 | use Coro; |
1 | use Coro; |
2 | use Coro::Semaphore; |
2 | use Coro::Semaphore; |
3 | use Coro::Event; |
3 | use Coro::Event; |
4 | use Coro::Socket; |
4 | use Coro::Socket; |
5 | use Coro::Signal; |
5 | use Coro::Signal; |
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6 | use Coro::AIO (); |
6 | |
7 | |
7 | use HTTP::Date; |
8 | use HTTP::Date; |
8 | use POSIX (); |
9 | use POSIX (); |
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10 | |
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11 | use Compress::Zlib (); |
9 | |
12 | |
10 | no utf8; |
13 | no utf8; |
11 | use bytes; |
14 | use bytes; |
12 | |
15 | |
13 | # at least on my machine, this thingy serves files |
16 | # at least on my machine, this thingy serves files |
… | |
… | |
19 | our $accesslog; |
22 | our $accesslog; |
20 | our $errorlog; |
23 | our $errorlog; |
21 | |
24 | |
22 | our $NOW; |
25 | our $NOW; |
23 | our $HTTP_NOW; |
26 | our $HTTP_NOW; |
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27 | |
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28 | our $ERROR_LOG; |
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29 | our $ACCESS_LOG; |
24 | |
30 | |
25 | Event->timer(interval => 1, hard => 1, cb => sub { |
31 | Event->timer(interval => 1, hard => 1, cb => sub { |
26 | $NOW = time; |
32 | $NOW = time; |
27 | $HTTP_NOW = time2str $NOW; |
33 | $HTTP_NOW = time2str $NOW; |
28 | })->now; |
34 | })->now; |
… | |
… | |
52 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
58 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
53 | our $httpevent = new Coro::Signal; |
59 | our $httpevent = new Coro::Signal; |
54 | |
60 | |
55 | our $queue_file = new transferqueue $MAX_TRANSFERS; |
61 | our $queue_file = new transferqueue $MAX_TRANSFERS; |
56 | our $queue_index = new transferqueue 10; |
62 | our $queue_index = new transferqueue 10; |
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63 | |
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64 | our $tbf_top = new tbf rate => $TBF_RATE || 100000; |
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65 | |
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66 | my $unused_bytes = 0; |
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67 | my $unused_last = time; |
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68 | |
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69 | sub unused_bandwidth { |
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70 | $unused_bytes += $_[0]; |
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71 | if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) { |
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72 | $unused_last = $NOW; |
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73 | $unused_bytes = 0; |
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74 | $queue_file->force_wake_next; |
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75 | slog 1, "forced filetransfer due to unused bandwidth"; |
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76 | } |
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77 | } |
57 | |
78 | |
58 | my @newcons; |
79 | my @newcons; |
59 | my @pool; |
80 | my @pool; |
60 | |
81 | |
61 | # one "execution thread" |
82 | # one "execution thread" |
… | |
… | |
93 | if (@pool) { |
114 | if (@pool) { |
94 | (pop @pool)->ready; |
115 | (pop @pool)->ready; |
95 | } else { |
116 | } else { |
96 | async \&handler; |
117 | async \&handler; |
97 | } |
118 | } |
98 | |
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99 | } |
119 | } |
100 | }; |
120 | }; |
101 | } |
121 | } |
102 | |
122 | |
103 | my $http_port = new Coro::Socket |
123 | my $http_port = new Coro::Socket |
… | |
… | |
120 | listen_on $http_port; |
140 | listen_on $http_port; |
121 | } |
141 | } |
122 | |
142 | |
123 | package conn; |
143 | package conn; |
124 | |
144 | |
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145 | use strict; |
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146 | use bytes; |
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147 | |
125 | use Socket; |
148 | use Socket; |
126 | use HTTP::Date; |
149 | use HTTP::Date; |
127 | use Convert::Scalar 'weaken'; |
150 | use Convert::Scalar 'weaken'; |
128 | use Linux::AIO; |
151 | use IO::AIO; |
129 | |
152 | |
130 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
153 | IO::AIO::min_parallel $::AIO_PARALLEL; |
131 | |
154 | |
132 | Event->io(fd => Linux::AIO::poll_fileno, |
155 | Event->io (fd => IO::AIO::poll_fileno, |
133 | poll => 'r', async => 1, |
156 | poll => 'r', async => 1, |
134 | cb => \&Linux::AIO::poll_cb); |
157 | cb => \&IO::AIO::poll_cb); |
135 | |
158 | |
136 | our %conn; # $conn{ip}{self} => connobj |
159 | our %conn; # $conn{ip}{self} => connobj |
137 | our %uri; # $uri{ip}{uri}{self} |
160 | our %uri; # $uri{ip}{uri}{self} |
138 | our %blocked; |
161 | our %blocked; |
139 | our %mimetype; |
162 | our %mimetype; |
… | |
… | |
161 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
184 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
162 | or $self->err(500, "unable to decode peername"); |
185 | or $self->err(500, "unable to decode peername"); |
163 | |
186 | |
164 | $self->{remote_addr} = |
187 | $self->{remote_addr} = |
165 | $self->{remote_id} = inet_ntoa $iaddr; |
188 | $self->{remote_id} = inet_ntoa $iaddr; |
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189 | |
166 | $self->{time} = $::NOW; |
190 | $self->{time} = $::NOW; |
167 | |
191 | |
168 | weaken ($Coro::current->{conn} = $self); |
192 | weaken ($Coro::current->{conn} = $self); |
169 | |
193 | |
170 | $::conns++; |
194 | $::conns++; |
… | |
… | |
176 | sub DESTROY { |
200 | sub DESTROY { |
177 | #my $self = shift; |
201 | #my $self = shift; |
178 | $::conns--; |
202 | $::conns--; |
179 | } |
203 | } |
180 | |
204 | |
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205 | sub prune_cache { |
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206 | my $hash = $_[0]; |
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207 | |
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208 | for (keys %$hash) { |
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209 | if (ref $hash->{$_} eq HASH::) { |
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210 | prune_cache($hash->{$_}); |
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211 | unless (scalar keys %{$hash->{$_}}) { |
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212 | delete $hash->{$_}; |
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213 | } |
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214 | } |
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215 | } |
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216 | } |
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217 | |
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218 | sub prune_caches { |
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219 | prune_cache \%conn; |
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220 | prune_cache \%uri; |
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221 | |
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222 | for (keys %blocked) { |
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223 | delete $blocked{$_} unless $blocked{$_}[0] > $::NOW; |
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224 | } |
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225 | } |
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226 | |
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227 | Event->timer(interval => 60, cb => \&prune_caches); |
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228 | |
181 | sub slog { |
229 | sub slog { |
182 | my $self = shift; |
230 | my $self = shift; |
183 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
231 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
184 | } |
232 | } |
185 | |
233 | |
186 | sub response { |
234 | sub response { |
187 | my ($self, $code, $msg, $hdr, $content) = @_; |
235 | my ($self, $code, $msg, $hdr, $content) = @_; |
188 | my $res = "HTTP/1.1 $code $msg\015\012"; |
236 | my $res = "HTTP/1.1 $code $msg\015\012"; |
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237 | my $GZ = ""; |
189 | |
238 | |
190 | if (exists $hdr->{Connection}) { |
239 | if (exists $hdr->{Connection}) { |
191 | if ($hdr->{Connection} =~ /close/) { |
240 | if ($hdr->{Connection} =~ /close/) { |
192 | $self->{h}{connection} = "close" |
241 | $self->{h}{connection} = "close" |
193 | } |
242 | } |
… | |
… | |
199 | $self->{h}{connection} = "close" |
248 | $self->{h}{connection} = "close" |
200 | } |
249 | } |
201 | } |
250 | } |
202 | } |
251 | } |
203 | |
252 | |
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253 | if ($self->{method} ne "HEAD" |
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254 | && $self->{h}{"accept-encoding"} =~ /\bgzip\b/ |
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255 | && 400 < length $content |
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256 | && $hdr->{"Content-Length"} == length $content |
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257 | && !exists $hdr->{"Content-Encoding"} |
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258 | ) { |
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259 | my $orig = length $content; |
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260 | $hdr->{"Content-Encoding"} = "gzip"; |
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261 | $content = Compress::Zlib::memGzip(\$content); |
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262 | $hdr->{"Content-Length"} = length $content; |
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263 | $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig); |
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264 | } |
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265 | |
204 | $res .= "Date: $HTTP_NOW\015\012"; |
266 | $res .= "Date: $HTTP_NOW\015\012"; |
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267 | $res .= "Server: $::NAME\015\012"; |
205 | |
268 | |
206 | while (my ($h, $v) = each %$hdr) { |
269 | while (my ($h, $v) = each %$hdr) { |
207 | $res .= "$h: $v\015\012" |
270 | $res .= "$h: $v\015\012" |
208 | } |
271 | } |
209 | $res .= "\015\012"; |
272 | $res .= "\015\012"; |
210 | |
273 | |
211 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
274 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
212 | |
275 | |
213 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $NOW). |
276 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW). |
214 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}. |
277 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ. |
215 | " \"$self->{h}{referer}\"\n"; |
278 | " \"$self->{h}{referer}\"\n"; |
216 | |
279 | |
217 | print $accesslog $log if $accesslog; |
280 | print $::accesslog $log if $::accesslog; |
218 | print STDERR $log; |
281 | print STDERR $log; |
219 | |
282 | |
220 | $self->{written} += |
283 | $tbf_top->request(length $res, 1e6); |
221 | print {$self->{fh}} $res; |
284 | $self->{written} += print {$self->{fh}} $res; |
222 | } |
285 | } |
223 | |
286 | |
224 | sub err { |
287 | sub err { |
225 | my $self = shift; |
288 | my $self = shift; |
226 | my ($code, $msg, $hdr, $content) = @_; |
289 | my ($code, $msg, $hdr, $content) = @_; |
… | |
… | |
281 | my (%hdr, $h, $v); |
344 | my (%hdr, $h, $v); |
282 | |
345 | |
283 | $hdr{lc $1} .= ",$2" |
346 | $hdr{lc $1} .= ",$2" |
284 | while $req =~ /\G |
347 | while $req =~ /\G |
285 | ([^:\000-\040]+): |
348 | ([^:\000-\040]+): |
286 | [\008\040]* |
349 | [\011\040]* |
287 | ((?: [^\015\012]+ | \015\012[\008\040] )*) |
350 | ((?: [^\015\012]+ | \015\012[\011\040] )*) |
288 | \015\012 |
351 | \015\012 |
289 | /gxc; |
352 | /gxc; |
290 | |
353 | |
291 | $req =~ /\G\015\012$/ |
354 | $req =~ /\G\015\012$/ |
292 | or $self->err(400, "bad request"); |
355 | or $self->err(400, "bad request"); |
… | |
… | |
440 | or $self->err(304, "not modified"); |
503 | or $self->err(304, "not modified"); |
441 | |
504 | |
442 | if (-r "$path/index.html") { |
505 | if (-r "$path/index.html") { |
443 | # replace directory "size" by index.html filesize |
506 | # replace directory "size" by index.html filesize |
444 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
507 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
445 | $self->handle_file($queue_index); |
508 | $self->handle_file($queue_index, $tbf_top); |
446 | } else { |
509 | } else { |
447 | $self->handle_dir; |
510 | $self->handle_dir; |
448 | } |
511 | } |
449 | } |
512 | } |
450 | } elsif (-f _ && -r _) { |
513 | } elsif (-f _ && -r _) { |
… | |
… | |
459 | $httpevent->wait; |
522 | $httpevent->wait; |
460 | } |
523 | } |
461 | } |
524 | } |
462 | } |
525 | } |
463 | |
526 | |
464 | $self->handle_file($queue_file); |
527 | $self->handle_file($queue_file, $tbf_top); |
465 | } else { |
528 | } else { |
466 | $self->err(404, "not found"); |
529 | $self->err(404, "not found"); |
467 | } |
530 | } |
468 | } |
531 | } |
469 | } |
532 | } |
… | |
… | |
472 | my $self = shift; |
535 | my $self = shift; |
473 | my $idx = $self->diridx; |
536 | my $idx = $self->diridx; |
474 | |
537 | |
475 | $self->response(200, "ok", |
538 | $self->response(200, "ok", |
476 | { |
539 | { |
477 | "Content-Type" => "text/html", |
540 | "Content-Type" => "text/html; charset=utf-8", |
478 | "Content-Length" => length $idx, |
541 | "Content-Length" => length $idx, |
479 | "Last-Modified" => time2str ($self->{stat}[9]), |
542 | "Last-Modified" => time2str ($self->{stat}[9]), |
480 | }, |
543 | }, |
481 | $idx); |
544 | $idx); |
482 | } |
545 | } |
483 | |
546 | |
484 | sub handle_file { |
547 | sub handle_file { |
485 | my ($self, $queue) = @_; |
548 | my ($self, $queue, $tbf) = @_; |
486 | my $length = $self->{stat}[7]; |
549 | my $length = $self->{stat}[7]; |
487 | my $hdr = { |
550 | my $hdr = { |
488 | "Last-Modified" => time2str ((stat _)[9]), |
551 | "Last-Modified" => time2str ((stat _)[9]), |
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552 | "Accept-Ranges" => "bytes", |
489 | }; |
553 | }; |
490 | |
554 | |
491 | my @code = (200, "ok"); |
555 | my @code = (200, "ok"); |
492 | my ($l, $h); |
556 | my ($l, $h); |
493 | |
557 | |
… | |
… | |
536 | |
600 | |
537 | $self->response(@code, $hdr, ""); |
601 | $self->response(@code, $hdr, ""); |
538 | |
602 | |
539 | if ($self->{method} eq "GET") { |
603 | if ($self->{method} eq "GET") { |
540 | $self->{time} = $::NOW; |
604 | $self->{time} = $::NOW; |
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605 | $self->{written} = 0; |
541 | |
606 | |
542 | my $current = $Coro::current; |
607 | my $fh; |
543 | |
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544 | my ($fh, $buf, $r); |
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545 | |
608 | |
546 | open $fh, "<", $self->{path} |
609 | open $fh, "<", $self->{path} |
547 | or die "$self->{path}: late open failure ($!)"; |
610 | or die "$self->{path}: late open failure ($!)"; |
548 | |
611 | |
549 | $h -= $l - 1; |
612 | $h -= $l - 1; |
… | |
… | |
561 | while ($h > 0) { |
624 | while ($h > 0) { |
562 | unless ($locked) { |
625 | unless ($locked) { |
563 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
626 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
564 | $bufsize = $::BUFSIZE; |
627 | $bufsize = $::BUFSIZE; |
565 | $self->{time} = $::NOW; |
628 | $self->{time} = $::NOW; |
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629 | $self->{written} = 0; |
566 | } |
630 | } |
567 | } |
631 | } |
568 | |
632 | |
569 | if ($blocked{$self->{remote_id}}) { |
633 | if ($blocked{$self->{remote_id}}) { |
570 | $self->{h}{connection} = "close"; |
634 | $self->{h}{connection} = "close"; |
571 | die bless {}, err:: |
635 | die bless {}, err::; |
572 | } |
636 | } |
573 | |
637 | |
574 | if (0) { # !AIO |
638 | Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0 |
575 | sysread $fh, $buf, $h > $bufsize ? $bufsize : $h |
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576 | or last; |
639 | or last; |
577 | } else { |
640 | |
578 | aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), |
641 | $tbf->request (length $buf); |
579 | $buf, 0, sub { |
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580 | $r = $_[0]; |
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581 | Coro::ready($current); |
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582 | }); |
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583 | &Coro::schedule; |
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584 | last unless $r; |
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585 | } |
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586 | my $w = syswrite $self->{fh}, $buf |
642 | my $w = syswrite $self->{fh}, $buf |
587 | or last; |
643 | or last; |
588 | $::written += $w; |
644 | $::written += $w; |
589 | $self->{written} += $w; |
645 | $self->{written} += $w; |
590 | $l += $r; |
646 | $l += $w; |
591 | } |
647 | } |
592 | |
648 | |
593 | close $fh; |
649 | close $fh; |
594 | } |
650 | } |
595 | } |
651 | } |
596 | |
652 | |
597 | 1; |
653 | 1 |
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654 | |