ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/cvsroot/Coro/myhttpd/httpd.pl
(Generate patch)

Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.26 by root, Sun Aug 19 22:59:35 2001 UTC vs.
Revision 1.35 by root, Thu Aug 30 12:35:28 2001 UTC

1use Coro; 1use Coro;
2use Coro::Semaphore; 2use Coro::Semaphore;
3use Coro::Event; 3use Coro::Event;
4use Coro::Socket; 4use Coro::Socket;
5 5
6use HTTP::Date;
7
6no utf8; 8no utf8;
7use bytes; 9use bytes;
8 10
9# at least on my machine, this thingy serves files 11# at least on my machine, this thingy serves files
10# quite a bit faster than apache, ;) 12# quite a bit faster than apache, ;)
11# and quite a bit slower than thttpd :( 13# and quite a bit slower than thttpd :(
12 14
13$SIG{PIPE} = 'IGNORE'; 15$SIG{PIPE} = 'IGNORE';
14 16
17our $accesslog;
18
19if ($ACCESS_LOG) {
20 use IO::Handle;
21 open $accesslog, ">>$ACCESS_LOG"
22 or die "$ACCESS_LOG: $!";
23 $accesslog->autoflush(1);
24}
25
15sub slog { 26sub slog {
16 my $level = shift; 27 my $level = shift;
17 my $format = shift; 28 my $format = shift;
18 printf "---: $format\n", @_; 29 printf "---: $format\n", @_;
19} 30}
20 31
21my $connections = new Coro::Semaphore $MAX_CONNECTS; 32our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
33
34our $wait_factor = 0.95;
35
36our @transfers = (
37 [(new Coro::Semaphore $MAX_TRANSFERS_SMALL || 50), 1],
38 [(new Coro::Semaphore $MAX_TRANSFERS_LARGE || 50), 1],
39);
22 40
23my @newcons; 41my @newcons;
24my @pool; 42my @pool;
25 43
26# one "execution thread" 44# one "execution thread"
… …
48 Listen => 50, 66 Listen => 50,
49 or die "unable to start server"; 67 or die "unable to start server";
50 68
51push @listen_sockets, $http_port; 69push @listen_sockets, $http_port;
52 70
71our $NOW;
72our $HTTP_NOW;
73
74Event->timer(interval => 1, hard => 1, cb => sub {
75 $NOW = time;
76 $HTTP_NOW = time2str $NOW;
77})->now;
78
53# the "main thread" 79# the "main thread"
54async { 80async {
55 slog 1, "accepting connections"; 81 slog 1, "accepting connections";
56 while () { 82 while () {
57 $connections->down; 83 $connections->down;
58 push @newcons, [$http_port->accept]; 84 push @newcons, [$http_port->accept];
59 #slog 3, "accepted @$connections ".scalar(@pool); 85 #slog 3, "accepted @$connections ".scalar(@pool);
60 $::NOW = time;
61 if (@pool) { 86 if (@pool) {
62 (pop @pool)->ready; 87 (pop @pool)->ready;
63 } else { 88 } else {
64 async \&handler; 89 async \&handler;
65 } 90 }
… …
73use HTTP::Date; 98use HTTP::Date;
74use Convert::Scalar 'weaken'; 99use Convert::Scalar 'weaken';
75use Linux::AIO; 100use Linux::AIO;
76 101
77Linux::AIO::min_parallel $::AIO_PARALLEL; 102Linux::AIO::min_parallel $::AIO_PARALLEL;
103
104my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
78 105
79Event->io(fd => Linux::AIO::poll_fileno, 106Event->io(fd => Linux::AIO::poll_fileno,
80 poll => 'r', async => 1, 107 poll => 'r', async => 1,
81 cb => \&Linux::AIO::poll_cb); 108 cb => \&Linux::AIO::poll_cb);
82 109
… …
134 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 161 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
135} 162}
136 163
137sub slog { 164sub slog {
138 my $self = shift; 165 my $self = shift;
139 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 166 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
140} 167}
141 168
142sub response { 169sub response {
143 my ($self, $code, $msg, $hdr, $content) = @_; 170 my ($self, $code, $msg, $hdr, $content) = @_;
144 my $res = "HTTP/1.1 $code $msg\015\012"; 171 my $res = "HTTP/1.1 $code $msg\015\012";
145 172
146 #$res .= "Connection: close\015\012"; 173 $self->{h}{connection} ||= $hdr->{Connection};
147 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 174
175 $res .= "Date: $HTTP_NOW\015\012";
148 176
149 while (my ($h, $v) = each %$hdr) { 177 while (my ($h, $v) = each %$hdr) {
150 $res .= "$h: $v\015\012" 178 $res .= "$h: $v\015\012"
151 } 179 }
152 $res .= "\015\012"; 180 $res .= "\015\012";
153 181
154 $res .= $content if defined $content and $self->{method} ne "HEAD"; 182 $res .= $content if defined $content and $self->{method} ne "HEAD";
155 183
156 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; 184 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
185
186 print $accesslog $log if $accesslog;
187 print STDERR $log;
157 188
158 $self->{written} += 189 $self->{written} +=
159 print {$self->{fh}} $res; 190 print {$self->{fh}} $res;
160} 191}
161 192
162sub err { 193sub err {
163 my $self = shift; 194 my $self = shift;
164 my ($code, $msg, $hdr, $content) = @_; 195 my ($code, $msg, $hdr, $content) = @_;
165 196
166 unless (defined $content) { 197 unless (defined $content) {
167 $content = "$code $msg"; 198 $content = "$code $msg\n";
168 $hdr->{"Content-Type"} = "text/plain"; 199 $hdr->{"Content-Type"} = "text/plain";
169 $hdr->{"Content-Length"} = length $content; 200 $hdr->{"Content-Length"} = length $content;
170 } 201 }
171 $hdr->{"Connection"} = "close"; 202 $hdr->{"Connection"} = "close";
172 203
173 $self->response($code, $msg, $hdr, $content); 204 $self->response($code, $msg, $hdr, $content);
174 205
175 die bless {}, err::; 206 die bless {}, err::;
176} 207}
177 208
178sub err_blocked {
179 my $self = shift;
180 my $ip = $self->{remote_addr};
181 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
182
183 Coro::Event::do_timer(after => 20*rand);
184
185 $self->err(401, "too many connections",
186 {
187 "Content-Type" => "text/html",
188 "Retry-After" => $::BLOCKTIME,
189 "Warning" => "Please do NOT retry, you have been blocked",
190 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
191 },
192 <<EOF);
193<html><p>
194You have been blocked because you opened too many connections. You
195may retry at</p>
196
197 <p><blockquote>$time.</blockquote></p>
198
199<p>Until then, each new access will renew the block. You might want to have a
200look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
201</html>
202EOF
203}
204
205sub handle { 209sub handle {
206 my $self = shift; 210 my $self = shift;
207 my $fh = $self->{fh}; 211 my $fh = $self->{fh};
212
213 my $host;
208 214
209 $fh->timeout($::REQ_TIMEOUT); 215 $fh->timeout($::REQ_TIMEOUT);
210 while() { 216 while() {
211 $self->{reqs}++; 217 $self->{reqs}++;
212 218
… …
232 238
233 delete $blocked{$ip}; 239 delete $blocked{$ip};
234 } 240 }
235 241
236 if (%{$conn{$ip}} > $::MAX_CONN_IP) { 242 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
243 my $delay = 120;
244 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
245 if ($delay <= 0) {
237 $self->slog(2, "blocked ip $ip"); 246 $self->slog(2, "blocked ip $ip");
238 $self->err_blocked; 247 $self->err_blocked;
248 } else {
249 Coro::Event::do_timer(after => 3);
250 $delay -= 3;
251 }
252 }
239 } 253 }
240 254
241 $req =~ /^(?:\015\012)? 255 $req =~ /^(?:\015\012)?
242 (GET|HEAD) \040+ 256 (GET|HEAD) \040+
243 ([^\040]+) \040+ 257 ([^\040]+) \040+
… …
269 283
270 $self->{h}{$h} = substr $v, 1 284 $self->{h}{$h} = substr $v, 1
271 while ($h, $v) = each %hdr; 285 while ($h, $v) = each %hdr;
272 } 286 }
273 287
288 # find out server name and port
289 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
290 $host = $1;
291 } else {
292 $host = $self->{h}{host};
293 }
294
295 if (defined $host) {
274 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 296 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
297 } else {
298 ($self->{server_port}, $host)
299 = unpack_sockaddr_in $self->{fh}->getsockname
300 or $self->err(500, "unable to get socket name");
301 $host = inet_ntoa $host;
302 }
303
304 $self->{server_name} = $host;
305
306 # remote id should be unique per user
307 $self->{remote_id} = $self->{remote_addr};
308
309 if (exists $self->{h}{"client-ip"}) {
310 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
311 } elsif (exists $self->{h}{"x-forwarded-for"}) {
312 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
313 }
275 314
276 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 315 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
277 316
278 eval { 317 eval {
279 $self->map_uri; 318 $self->map_uri;
… …
282 321
283 $self->eoconn; 322 $self->eoconn;
284 323
285 die if $@ && !ref $@; 324 die if $@ && !ref $@;
286 325
287 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 326 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
288 327
289 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]");
290 $fh->timeout($::PER_TIMEOUT); 328 $fh->timeout($::PER_TIMEOUT);
291 } 329 }
292} 330}
293 331
294# uri => path mapping 332# uri => path mapping
295sub map_uri { 333sub map_uri {
296 my $self = shift; 334 my $self = shift;
297 my $host = $self->{h}{host} || "default"; 335 my $host = $self->{server_name};
298 my $uri = $self->{uri}; 336 my $uri = $self->{uri};
299 337
300 # some massaging, also makes it more secure 338 # some massaging, also makes it more secure
301 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 339 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
302 $uri =~ s%//+%/%g; 340 $uri =~ s%//+%/%g;
… …
312 $self->{path} = "$::DOCROOT/$host$uri"; 350 $self->{path} = "$::DOCROOT/$host$uri";
313 351
314 $self->access_check; 352 $self->access_check;
315} 353}
316 354
317sub server_address {
318 my $self = shift;
319 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
320 or $self->err(500, "unable to get socket name");
321 ((inet_ntoa $iaddr), $port);
322}
323
324sub server_host {
325 my $self = shift;
326 if (exists $self->{h}{host}) {
327 return $self->{h}{host};
328 } else {
329 return (($self->server_address)[0]);
330 }
331}
332
333sub server_hostport {
334 my $self = shift;
335 my ($host, $port);
336 if (exists $self->{h}{host}) {
337 ($host, $port) = ($self->{h}{host}, $self->{server_port});
338 } else {
339 ($host, $port) = $self->server_address;
340 }
341 $port = $port == 80 ? "" : ":$port";
342 $host.$port;
343}
344
345sub _cgi { 355sub _cgi {
346 my $self = shift; 356 my $self = shift;
347 my $path = shift; 357 my $path = shift;
348 my $fh; 358 my $fh;
349 359
350 # no two-way xxx supported 360 # no two-way xxx supported
351 if (0 == fork) { 361 if (0 == fork) {
352 open STDOUT, ">&".fileno($self->{fh}); 362 open STDOUT, ">&".fileno($self->{fh});
353 if (chdir $::DOCROOT) { 363 if (chdir $::DOCROOT) {
354 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 364 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
355 $ENV{HTTP_HOST} = $self->server_host; 365 $ENV{HTTP_HOST} = $self->{server_name};
356 $ENV{HTTP_PORT} = $self->{server_host}; 366 $ENV{HTTP_PORT} = $self->{server_port};
357 $ENV{SCRIPT_NAME} = $self->{name}; 367 $ENV{SCRIPT_NAME} = $self->{name};
358 exec $path; 368 exec $path;
359 } 369 }
360 Coro::State::_exit(0); 370 Coro::State::_exit(0);
361 } else { 371 } else {
372 die;
362 } 373 }
374}
375
376sub server_hostport {
377 $_[0]{server_port} == 80
378 ? $_[0]{server_name}
379 : "$_[0]{server_name}:$_[0]{server_port}";
363} 380}
364 381
365sub respond { 382sub respond {
366 my $self = shift; 383 my $self = shift;
367 my $path = $self->{path}; 384 my $path = $self->{path};
… …
377 394
378 if (-d _ && -r _) { 395 if (-d _ && -r _) {
379 # directory 396 # directory
380 if ($path !~ /\/$/) { 397 if ($path !~ /\/$/) {
381 # create a redirect to get the trailing "/" 398 # create a redirect to get the trailing "/"
382 my $host = $self->server_hostport; 399 # we don't try to avoid the :80
383 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 400 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
384 } else { 401 } else {
385 $ims < $self->{stat}[9] 402 $ims < $self->{stat}[9]
386 or $self->err(304, "not modified"); 403 or $self->err(304, "not modified");
387 404
388 if (-r "$path/index.html") { 405 if (-r "$path/index.html") {
… …
412 $idx); 429 $idx);
413} 430}
414 431
415sub handle_file { 432sub handle_file {
416 my $self = shift; 433 my $self = shift;
417 my $length = -s _; 434 my $length = $self->{stat}[7];
435 my $queue = $::transfers[$length >= $::TRANSFER_SMALL];
418 my $hdr = { 436 my $hdr = {
419 "Last-Modified" => time2str ((stat _)[9]), 437 "Last-Modified" => time2str ((stat _)[9]),
420 }; 438 };
421 439
422 my @code = (200, "ok"); 440 my @code = (200, "ok");
… …
434 } 452 }
435 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 453 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
436 } 454 }
437 $hdr->{"Content-Range"} = "bytes */$length"; 455 $hdr->{"Content-Range"} = "bytes */$length";
438 $hdr->{"Content-Length"} = $length; 456 $hdr->{"Content-Length"} = $length;
439 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
440 $self->err(416, "not satisfiable", $hdr, ""); 457 $self->err(416, "not satisfiable", $hdr, "");
441 458
442satisfiable: 459satisfiable:
443 # check for segmented downloads 460 # check for segmented downloads
444 if ($l && $::NO_SEGMENTED) { 461 if ($l && $::NO_SEGMENTED) {
462 my $delay = 180;
445 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 463 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
446 $self->err(400, "segmented downloads are not allowed"); 464 if ($delay <= 0) {
465 $self->err_segmented_download;
466 } else {
467 Coro::Event::do_timer(after => 3); $delay -= 3;
468 }
447 } 469 }
448 } 470 }
449 471
450 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 472 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
451 @code = (206, "partial content"); 473 @code = (206, "partial content");
… …
461 $hdr->{"Content-Length"} = $length; 483 $hdr->{"Content-Length"} = $length;
462 484
463 $self->response(@code, $hdr, ""); 485 $self->response(@code, $hdr, "");
464 486
465 if ($self->{method} eq "GET") { 487 if ($self->{method} eq "GET") {
488 $self->{time} = $::NOW;
489
490 my $fudge = $queue->[0]->waiters;
491 $fudge = $fudge ? ($fudge+1)/$fudge : 1;
492
493 $queue->[1] *= $fudge;
494 my $transfer = $queue->[0]->guard;
495
496 if ($fudge != 1) {
497 $queue->[1] /= $fudge;
498 $queue->[1] = $queue->[1] * $::wait_factor
499 + ($::NOW - $self->{time}) * (1 - $::wait_factor);
500 }
501 $self->{time} = $::NOW;
502
503 $self->{fh}->writable or return;
504
466 my ($fh, $buf, $r); 505 my ($fh, $buf, $r);
467 my $current = $Coro::current; 506 my $current = $Coro::current;
468 open $fh, "<", $self->{path} 507 open $fh, "<", $self->{path}
469 or die "$self->{path}: late open failure ($!)"; 508 or die "$self->{path}: late open failure ($!)";
470 509
… …
479 while ($h > 0) { 518 while ($h > 0) {
480 if (0) { 519 if (0) {
481 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 520 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
482 or last; 521 or last;
483 } else { 522 } else {
523 undef $buf;
524 $aio_requests->down;
484 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), 525 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
485 $buf, 0, sub { 526 $buf, 0, sub {
486 $r = $_[0]; 527 $r = $_[0];
487 $current->ready; 528 $current->ready;
488 }); 529 });
489 &Coro::schedule; 530 &Coro::schedule;
531 $aio_requests->up;
490 last unless $r; 532 last unless $r;
491 } 533 }
492 my $w = $self->{fh}->syswrite($buf) 534 my $w = $self->{fh}->syswrite($buf)
493 or last; 535 or last;
494 $::written += $w; 536 $::written += $w;
495 $self->{written} += $w; 537 $self->{written} += $w;
496 $l += $r; 538 $l += $r;
497 } 539 }
498 }
499 540
500 close $fh; 541 close $fh;
542 }
501} 543}
502 544
5031; 5451;

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines