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/cvs/Coro/myhttpd/httpd.pl
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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.51 by root, Thu Nov 29 01:50:41 2001 UTC vs.
Revision 1.57 by root, Mon Dec 3 05:40:09 2001 UTC

… …
15# and quite a bit slower than thttpd :( 15# and quite a bit slower than thttpd :(
16 16
17$SIG{PIPE} = 'IGNORE'; 17$SIG{PIPE} = 'IGNORE';
18 18
19our $accesslog; 19our $accesslog;
20our $errorlog;
21
22our $NOW;
23our $HTTP_NOW;
24
25Event->timer(interval => 1, hard => 1, cb => sub {
26 $NOW = time;
27 $HTTP_NOW = time2str $NOW;
28})->now;
29
30if ($ERROR_LOG) {
31 use IO::Handle;
32 open $errorlog, ">>$ERROR_LOG"
33 or die "$ERROR_LOG: $!";
34 $errorlog->autoflush(1);
35}
20 36
21if ($ACCESS_LOG) { 37if ($ACCESS_LOG) {
22 use IO::Handle; 38 use IO::Handle;
23 open $accesslog, ">>$ACCESS_LOG" 39 open $accesslog, ">>$ACCESS_LOG"
24 or die "$ACCESS_LOG: $!"; 40 or die "$ACCESS_LOG: $!";
… …
26} 42}
27 43
28sub slog { 44sub slog {
29 my $level = shift; 45 my $level = shift;
30 my $format = shift; 46 my $format = shift;
47 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
31 printf "---: $format\n", @_; 48 printf "$NOW: $format\n", @_;
49 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
32} 50}
33 51
34our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; 52our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
35our $httpevent = new Coro::Signal; 53our $httpevent = new Coro::Signal;
36 54
37our $wait_factor = 0.95; 55our $queue_file = new transferqueue $MAX_TRANSFERS;
38 56our $queue_index = new transferqueue 10;
39our @transfers = (
40 (new transferqueue $MAX_TRANSFERS_SMALL),
41 (new transferqueue $MAX_TRANSFERS_LARGE),
42);
43 57
44my @newcons; 58my @newcons;
45my @pool; 59my @pool;
46 60
47# one "execution thread" 61# one "execution thread"
… …
50 if (@newcons) { 64 if (@newcons) {
51 eval { 65 eval {
52 conn->new(@{pop @newcons})->handle; 66 conn->new(@{pop @newcons})->handle;
53 }; 67 };
54 slog 1, "$@" if $@ && !ref $@; 68 slog 1, "$@" if $@ && !ref $@;
69
70 $httpevent->broadcast; # only for testing, but doesn't matter much
71
55 $connections->up; 72 $connections->up;
56 } else { 73 } else {
57 last if @pool >= $MAX_POOL; 74 last if @pool >= $MAX_POOL;
58 push @pool, $Coro::current; 75 push @pool, $Coro::current;
59 schedule; 76 schedule;
… …
101 or die "unable to start server"; 118 or die "unable to start server";
102 119
103 listen_on $http_port; 120 listen_on $http_port;
104} 121}
105 122
106our $NOW;
107our $HTTP_NOW;
108
109Event->timer(interval => 1, hard => 1, cb => sub {
110 $NOW = time;
111 $HTTP_NOW = time2str $NOW;
112})->now;
113
114package conn; 123package conn;
115 124
116use Socket; 125use Socket;
117use HTTP::Date; 126use HTTP::Date;
118use Convert::Scalar 'weaken'; 127use Convert::Scalar 'weaken';
… …
157 $self->{time} = $::NOW; 166 $self->{time} = $::NOW;
158 167
159 weaken ($Coro::current->{conn} = $self); 168 weaken ($Coro::current->{conn} = $self);
160 169
161 $::conns++; 170 $::conns++;
171 $::maxconns = $::conns if $::conns > $::maxconns;
162 172
163 $self; 173 $self;
164} 174}
165 175
166sub DESTROY { 176sub DESTROY {
167 my $self = shift; 177 #my $self = shift;
168 $::conns--; 178 $::conns--;
169 $self->eoconn;
170}
171
172# end of connection
173sub eoconn {
174 my $self = shift;
175
176 # clean up hints
177 delete $conn{$self->{remote_id}}{$self*1};
178 delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1};
179
180 $httpevent->broadcast;
181} 179}
182 180
183sub slog { 181sub slog {
184 my $self = shift; 182 my $self = shift;
185 main::slog($_[0], "$self->{remote_id}> $_[1]"); 183 main::slog($_[0], "$self->{remote_id}> $_[1]");
… …
306 $id .= "[".$self->{h}{"x-forwarded-for"}."]"; 304 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
307 } 305 }
308 306
309 $self->{remote_id} = $id; 307 $self->{remote_id} = $id;
310 308
309 weaken (local $conn{$id}{$self*1} = $self);
310
311 if ($blocked{$id}) { 311 if ($blocked{$id}) {
312 $self->err_blocked($blocked{$id}) 312 $self->err_blocked
313 if $blocked{$id} > $::NOW; 313 if $blocked{$id}[0] > $::NOW;
314 314
315 delete $blocked{$id}; 315 delete $blocked{$id};
316 }
317
318 if (%{$conn{$id}} >= $::MAX_CONN_IP) {
319 my $delay = $::PER_TIMEOUT + $::NOW + 15;
320 while (%{$conn{$id}} >= $::MAX_CONN_IP) {
321 if ($delay < $::NOW) {
322 $self->slog(2, "blocked ip $id");
323 $self->err_blocked;
324 } else {
325 $httpevent->wait;
326 }
327 }
328 } 316 }
329 317
330 # find out server name and port 318 # find out server name and port
331 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { 319 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
332 $host = $1; 320 $host = $1;
… …
343 $host = inet_ntoa $host; 331 $host = inet_ntoa $host;
344 } 332 }
345 333
346 $self->{server_name} = $host; 334 $self->{server_name} = $host;
347 335
348 # enter ourselves into various lists
349 weaken ($conn{$id}{$self*1} = $self);
350 weaken ($uri{$id}{$self->{uri}}{$self*1} = $self); 336 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
351 337
352 eval { 338 eval {
353 $self->map_uri; 339 $self->map_uri;
354 $self->respond; 340 $self->respond;
355 }; 341 };
356 342
357 $self->eoconn;
358
359 die if $@ && !ref $@; 343 die if $@ && !ref $@;
360 344
361 last if $self->{h}{connection} =~ /close/; 345 last if $self->{h}{connection} =~ /close/i;
362 346
363 $httpevent->broadcast; 347 $httpevent->broadcast;
364 348
365 $fh->timeout($::PER_TIMEOUT); 349 $fh->timeout($::PER_TIMEOUT);
366 } 350 }
351}
352
353sub block {
354 my $self = shift;
355
356 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
357 $self->slog(2, "blocked ip $self->{remote_id}");
358 $self->err_blocked;
367} 359}
368 360
369# uri => path mapping 361# uri => path mapping
370sub map_uri { 362sub map_uri {
371 my $self = shift; 363 my $self = shift;
… …
447 $ims < $self->{stat}[9] 439 $ims < $self->{stat}[9]
448 or $self->err(304, "not modified"); 440 or $self->err(304, "not modified");
449 441
450 if (-r "$path/index.html") { 442 if (-r "$path/index.html") {
451 # replace directory "size" by index.html filesize 443 # replace directory "size" by index.html filesize
452 $self->{stat}[7] = (stat ($self->{path} .= "/index.html"))[7]; 444 $self->{stat} = [stat ($self->{path} .= "/index.html")];
453 $self->handle_file; 445 $self->handle_file($queue_index);
454 } else { 446 } else {
455 $self->handle_dir; 447 $self->handle_dir;
456 } 448 }
457 } 449 }
458 } elsif (-f _ && -r _) { 450 } elsif (-f _ && -r _) {
459 -x _ and $self->err(403, "forbidden"); 451 -x _ and $self->err(403, "forbidden");
452
453 if (%{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
454 my $timeout = $::NOW + 10;
455 while (%{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
456 if ($timeout < $::NOW) {
457 $self->block($::BLOCKTIME, "too many connections");
458 } else {
459 $httpevent->wait;
460 }
461 }
462 }
463
460 $self->handle_file; 464 $self->handle_file($queue_file);
461 } else { 465 } else {
462 $self->err(404, "not found"); 466 $self->err(404, "not found");
463 } 467 }
464 } 468 }
465} 469}
… …
470 474
471 $self->response(200, "ok", 475 $self->response(200, "ok",
472 { 476 {
473 "Content-Type" => "text/html", 477 "Content-Type" => "text/html",
474 "Content-Length" => length $idx, 478 "Content-Length" => length $idx,
475 #d# directories change all the time, so X-
476 "X-Last-Modified" => time2str ((stat _)[9]), 479 "Last-Modified" => time2str ($self->{stat}[9]),
477 }, 480 },
478 $idx); 481 $idx);
479} 482}
480 483
481sub handle_file { 484sub handle_file {
482 my $self = shift; 485 my ($self, $queue) = @_;
483 my $length = $self->{stat}[7]; 486 my $length = $self->{stat}[7];
484 my $queue = $::transfers[$length >= $::TRANSFER_SMALL];
485 my $hdr = { 487 my $hdr = {
486 "Last-Modified" => time2str ((stat _)[9]), 488 "Last-Modified" => time2str ((stat _)[9]),
487 }; 489 };
488 490
489 my @code = (200, "ok"); 491 my @code = (200, "ok");
… …
506 $self->err(416, "not satisfiable", $hdr, ""); 508 $self->err(416, "not satisfiable", $hdr, "");
507 509
508satisfiable: 510satisfiable:
509 # check for segmented downloads 511 # check for segmented downloads
510 if ($l && $::NO_SEGMENTED) { 512 if ($l && $::NO_SEGMENTED) {
511 my $delay = $::NOW + $::PER_TIMEOUT + 15; 513 my $timeout = $::NOW + 15;
512 while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { 514 while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
513 if ($delay <= $::NOW) { 515 if ($timeout <= $::NOW) {
516 $self->block($::BLOCKTIME, "segmented downloads are forbidden");
514 $self->err_segmented_download; 517 #$self->err_segmented_download;
515 } else { 518 } else {
516 $httpevent->wait; 519 $httpevent->wait;
517 } 520 }
518 } 521 }
519 } 522 }
… …
549 if ($l) { 552 if ($l) {
550 sysseek $fh, $l, 0; 553 sysseek $fh, $l, 0;
551 } 554 }
552 } 555 }
553 556
554 my $transfer = $queue->start_transfer; 557 my $transfer = $queue->start_transfer($h);
555 my $locked; 558 my $locked;
556 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size 559 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
557 560
558 while ($h > 0) { 561 while ($h > 0) {
559 unless ($locked) { 562 unless ($locked) {
560 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { 563 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
561 $bufsize = $::BUFSIZE; 564 $bufsize = $::BUFSIZE;
562 $self->{time} = $::NOW; 565 $self->{time} = $::NOW;
563 } 566 }
567 }
568
569 if ($blocked{$self->{remote_id}}) {
570 $self->{h}{connection} = "close";
571 die bless {}, err::
564 } 572 }
565 573
566 if (0) { # !AIO 574 if (0) { # !AIO
567 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h 575 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
568 or last; 576 or last;

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