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 1.57 by root, Mon Dec 3 05:40:09 2001 UTC vs.
Revision 1.82 by root, Sat Dec 2 03:31:42 2006 UTC

1use Coro; 1use Coro;
2use Coro::Semaphore; 2use Coro::Semaphore;
3use Coro::Event; 3use Coro::Event;
4use Coro::Socket; 4use Coro::Socket;
5use Coro::Signal; 5use Coro::Signal;
6use Coro::AIO ();
6 7
7use HTTP::Date; 8use HTTP::Date;
8use POSIX (); 9use POSIX ();
10
11use Compress::Zlib ();
9 12
10no utf8; 13no utf8;
11use bytes; 14use bytes;
12 15
13# at least on my machine, this thingy serves files 16# at least on my machine, this thingy serves files
… …
19our $accesslog; 22our $accesslog;
20our $errorlog; 23our $errorlog;
21 24
22our $NOW; 25our $NOW;
23our $HTTP_NOW; 26our $HTTP_NOW;
27
28our $ERROR_LOG;
29our $ACCESS_LOG;
24 30
25Event->timer(interval => 1, hard => 1, cb => sub { 31Event->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;
… …
53our $httpevent = new Coro::Signal; 59our $httpevent = new Coro::Signal;
54 60
55our $queue_file = new transferqueue $MAX_TRANSFERS; 61our $queue_file = new transferqueue $MAX_TRANSFERS;
56our $queue_index = new transferqueue 10; 62our $queue_index = new transferqueue 10;
57 63
64our $tbf_top = new tbf rate => $TBF_RATE || 100000;
65
66my $unused_bytes = 0;
67my $unused_last = time;
68
69sub unused_bandwidth {
70 $unused_bytes += $_[0];
71 if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) {
72 $unused_last = $NOW;
73 $unused_bytes = 0;
74 $queue_file->force_wake_next;
75 slog 1, "forced filetransfer due to unused bandwidth";
76 }
77}
78
58my @newcons; 79my @newcons;
59my @pool; 80my @pool;
60 81
61# one "execution thread" 82# one "execution thread"
62sub handler { 83sub handler {
63 while () { 84 while () {
64 if (@newcons) { 85 if (@newcons) {
65 eval { 86 eval {
66 conn->new(@{pop @newcons})->handle; 87 conn->new (@{pop @newcons})->handle;
67 }; 88 };
68 slog 1, "$@" if $@ && !ref $@; 89 slog 1, "$@" if $@ && !ref $@;
69 90
70 $httpevent->broadcast; # only for testing, but doesn't matter much 91 $httpevent->broadcast; # only for testing, but doesn't matter much
71 92
… …
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
99 } 119 }
100 }; 120 };
101} 121}
102 122
103my $http_port = new Coro::Socket 123my $http_port = new Coro::Socket
104 LocalAddr => $SERVER_HOST, 124 LocalAddr => $SERVER_HOST,
105 LocalPort => $SERVER_PORT, 125 LocalPort => $SERVER_PORT,
106 ReuseAddr => 1, 126 ReuseAddr => 1,
107 Listen => 50, 127 Listen => 50,
108 or die "unable to start server"; 128 or die "unable to start server";
109 129
110listen_on $http_port; 130listen_on $http_port;
111 131
112if ($SERVER_PORT2) { 132if ($SERVER_PORT2) {
113 my $http_port = new Coro::Socket 133 my $http_port = new Coro::Socket
114 LocalAddr => $SERVER_HOST, 134 LocalAddr => $SERVER_HOST,
115 LocalPort => $SERVER_PORT2, 135 LocalPort => $SERVER_PORT2,
116 ReuseAddr => 1, 136 ReuseAddr => 1,
117 Listen => 50, 137 Listen => 50,
118 or die "unable to start server"; 138 or die "unable to start server";
119 139
120 listen_on $http_port; 140 listen_on $http_port;
121} 141}
122 142
123package conn; 143package conn;
144
145use strict;
146use bytes;
124 147
125use Socket; 148use Socket;
126use HTTP::Date; 149use HTTP::Date;
127use Convert::Scalar 'weaken'; 150use Convert::Scalar 'weaken';
128use Linux::AIO; 151use IO::AIO;
129 152
130Linux::AIO::min_parallel $::AIO_PARALLEL; 153IO::AIO::min_parallel $::AIO_PARALLEL;
131 154
132Event->io(fd => Linux::AIO::poll_fileno, 155Event->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
136our %conn; # $conn{ip}{self} => connobj 159our %conn; # $conn{ip}{self} => connobj
137our %uri; # $uri{ip}{uri}{self} 160our %uri; # $uri{ip}{uri}{self}
138our %blocked; 161our %blocked;
139our %mimetype; 162our %mimetype;
140 163
141sub read_mimetypes { 164sub read_mimetypes {
142 local *M;
143 if (open M, "<mime_types") { 165 if (open my $fh, "<mime_types") {
144 while (<M>) { 166 while (<$fh>) {
145 if (/^([^#]\S+)\t+(\S+)$/) { 167 if (/^([^#]\S+)\t+(\S+)$/) {
146 $mimetype{lc $1} = $2; 168 $mimetype{lc $1} = $2;
147 } 169 }
148 } 170 }
149 } else { 171 } else {
… …
157 my $class = shift; 179 my $class = shift;
158 my $fh = shift; 180 my $fh = shift;
159 my $peername = shift; 181 my $peername = shift;
160 my $self = bless { fh => $fh }, $class; 182 my $self = bless { fh => $fh }, $class;
161 my (undef, $iaddr) = unpack_sockaddr_in $peername 183 my (undef, $iaddr) = unpack_sockaddr_in $peername
162 or $self->err(500, "unable to decode peername"); 184 or $self->err (500, "unable to decode peername");
163 185
164 $self->{remote_addr} = 186 $self->{remote_addr} =
165 $self->{remote_id} = inet_ntoa $iaddr; 187 $self->{remote_id} = inet_ntoa $iaddr;
188
166 $self->{time} = $::NOW; 189 $self->{time} = $::NOW;
167 190
168 weaken ($Coro::current->{conn} = $self); 191 weaken ($Coro::current->{conn} = $self);
169 192
170 $::conns++; 193 ++$::conns;
171 $::maxconns = $::conns if $::conns > $::maxconns; 194 $::maxconns = $::conns if $::conns > $::maxconns;
172 195
173 $self; 196 $self
174} 197}
175 198
176sub DESTROY { 199sub DESTROY {
177 #my $self = shift; 200 my $self = shift;
201
202 close $self->{fh}; # workaround
178 $::conns--; 203 --$::conns;
179} 204}
205
206sub prune_cache {
207 my $hash = $_[0];
208
209 for (keys %$hash) {
210 if (ref $hash->{$_} eq HASH::) {
211 prune_cache($hash->{$_});
212 unless (scalar keys %{$hash->{$_}}) {
213 delete $hash->{$_};
214 }
215 }
216 }
217}
218
219sub prune_caches {
220 prune_cache \%conn;
221 prune_cache \%uri;
222
223 for (keys %blocked) {
224 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
225 }
226}
227
228Event->timer (interval => 60, cb => \&prune_caches);
180 229
181sub slog { 230sub slog {
182 my $self = shift; 231 my $self = shift;
183 main::slog($_[0], "$self->{remote_id}> $_[1]"); 232 main::slog($_[0], "$self->{remote_id}> $_[1]");
184} 233}
185 234
186sub response { 235sub response {
187 my ($self, $code, $msg, $hdr, $content) = @_; 236 my ($self, $code, $msg, $hdr, $content) = @_;
188 my $res = "HTTP/1.1 $code $msg\015\012"; 237 my $res = "HTTP/1.1 $code $msg\015\012";
238 my $GZ = "";
189 239
190 if (exists $hdr->{Connection}) { 240 if (exists $hdr->{Connection}) {
191 if ($hdr->{Connection} =~ /close/) { 241 if ($hdr->{Connection} =~ /close/) {
192 $self->{h}{connection} = "close" 242 $self->{h}{connection} = "close"
193 } 243 }
… …
199 $self->{h}{connection} = "close" 249 $self->{h}{connection} = "close"
200 } 250 }
201 } 251 }
202 } 252 }
203 253
254 if ($self->{method} ne "HEAD"
255 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
256 && 400 < length $content
257 && $hdr->{"Content-Length"} == length $content
258 && !exists $hdr->{"Content-Encoding"}
259 ) {
260 my $orig = length $content;
261 $hdr->{"Content-Encoding"} = "gzip";
262 $content = Compress::Zlib::memGzip(\$content);
263 $hdr->{"Content-Length"} = length $content;
264 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
265 }
266
204 $res .= "Date: $HTTP_NOW\015\012"; 267 $res .= "Date: $HTTP_NOW\015\012";
268 $res .= "Server: $::NAME\015\012";
205 269
206 while (my ($h, $v) = each %$hdr) { 270 while (my ($h, $v) = each %$hdr) {
207 $res .= "$h: $v\015\012" 271 $res .= "$h: $v\015\012"
208 } 272 }
209 $res .= "\015\012"; 273 $res .= "\015\012";
210 274
211 $res .= $content if defined $content and $self->{method} ne "HEAD"; 275 $res .= $content if defined $content and $self->{method} ne "HEAD";
212 276
213 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $NOW). 277 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
214 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}. 278 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
215 " \"$self->{h}{referer}\"\n"; 279 " \"$self->{h}{referer}\"\n";
216 280
217 print $accesslog $log if $accesslog; 281 print $::accesslog $log if $::accesslog;
218 print STDERR $log; 282 print STDERR $log;
219 283
220 $self->{written} += 284 $tbf_top->request(length $res, 1e6);
221 print {$self->{fh}} $res; 285 $self->{written} += print {$self->{fh}} $res;
222} 286}
223 287
224sub err { 288sub err {
225 my $self = shift; 289 my $self = shift;
226 my ($code, $msg, $hdr, $content) = @_; 290 my ($code, $msg, $hdr, $content) = @_;
… …
230 $hdr->{"Content-Type"} = "text/plain"; 294 $hdr->{"Content-Type"} = "text/plain";
231 $hdr->{"Content-Length"} = length $content; 295 $hdr->{"Content-Length"} = length $content;
232 } 296 }
233 $hdr->{"Connection"} = "close"; 297 $hdr->{"Connection"} = "close";
234 298
235 $self->response($code, $msg, $hdr, $content); 299 $self->response ($code, $msg, $hdr, $content);
236 300
237 die bless {}, err::; 301 die bless {}, err::
238} 302}
239 303
240sub handle { 304sub handle {
241 my $self = shift; 305 my $self = shift;
242 my $fh = $self->{fh}; 306 my $fh = $self->{fh};
243 307
244 my $host; 308 my $host;
245 309
246 $fh->timeout($::REQ_TIMEOUT); 310 $fh->timeout($::REQ_TIMEOUT);
247 while() { 311 while () {
248 $self->{reqs}++; 312 $self->{reqs}++;
249 313
250 # read request and parse first line 314 # read request and parse first line
251 my $req = $fh->readline("\015\012\015\012"); 315 my $req = $fh->readline("\015\012\015\012");
252 316
… …
281 my (%hdr, $h, $v); 345 my (%hdr, $h, $v);
282 346
283 $hdr{lc $1} .= ",$2" 347 $hdr{lc $1} .= ",$2"
284 while $req =~ /\G 348 while $req =~ /\G
285 ([^:\000-\040]+): 349 ([^:\000-\040]+):
286 [\008\040]* 350 [\011\040]*
287 ((?: [^\015\012]+ | \015\012[\008\040] )*) 351 ((?: [^\015\012]+ | \015\012[\011\040] )*)
288 \015\012 352 \015\012
289 /gxc; 353 /gxc;
290 354
291 $req =~ /\G\015\012$/ 355 $req =~ /\G\015\012$/
292 or $self->err(400, "bad request"); 356 or $self->err(400, "bad request");
… …
414 478
415 if ($self->{name} =~ s%^/internal/([^/]+)%%) { 479 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
416 if ($::internal{$1}) { 480 if ($::internal{$1}) {
417 $::internal{$1}->($self); 481 $::internal{$1}->($self);
418 } else { 482 } else {
419 $self->err(404, "not found"); 483 $self->err (404, "not found");
420 } 484 }
421 } else { 485 } else {
422 486
423 stat $path 487 stat $path
424 or $self->err(404, "not found"); 488 or $self->err (404, "not found");
425 489
426 $self->{stat} = [stat _]; 490 $self->{stat} = [stat _];
427 491
428 # idiotic netscape sends idiotic headers AGAIN 492 # idiotic netscape sends idiotic headers AGAIN
429 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 493 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
… …
432 if (-d _ && -r _) { 496 if (-d _ && -r _) {
433 # directory 497 # directory
434 if ($path !~ /\/$/) { 498 if ($path !~ /\/$/) {
435 # create a redirect to get the trailing "/" 499 # create a redirect to get the trailing "/"
436 # we don't try to avoid the :80 500 # we don't try to avoid the :80
437 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); 501 $self->err (301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
438 } else { 502 } else {
439 $ims < $self->{stat}[9] 503 $ims < $self->{stat}[9]
440 or $self->err(304, "not modified"); 504 or $self->err (304, "not modified");
441 505
442 if (-r "$path/index.html") { 506 if (-r "$path/index.html") {
443 # replace directory "size" by index.html filesize 507 # replace directory "size" by index.html filesize
444 $self->{stat} = [stat ($self->{path} .= "/index.html")]; 508 $self->{stat} = [stat ($self->{path} .= "/index.html")];
445 $self->handle_file($queue_index); 509 $self->handle_file ($queue_index, $tbf_top);
446 } else { 510 } else {
447 $self->handle_dir; 511 $self->handle_dir;
448 } 512 }
449 } 513 }
450 } elsif (-f _ && -r _) { 514 } elsif (-f _ && -r _) {
451 -x _ and $self->err(403, "forbidden"); 515 -x _ and $self->err (403, "forbidden");
452 516
453 if (%{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { 517 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
454 my $timeout = $::NOW + 10; 518 my $timeout = $::NOW + 10;
455 while (%{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { 519 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
456 if ($timeout < $::NOW) { 520 if ($timeout < $::NOW) {
457 $self->block($::BLOCKTIME, "too many connections"); 521 $self->block($::BLOCKTIME, "too many connections");
458 } else { 522 } else {
459 $httpevent->wait; 523 $httpevent->wait;
460 } 524 }
461 } 525 }
462 } 526 }
463 527
464 $self->handle_file($queue_file); 528 $self->handle_file ($queue_file, $tbf_top);
465 } else { 529 } else {
466 $self->err(404, "not found"); 530 $self->err (404, "not found");
467 } 531 }
468 } 532 }
469} 533}
470 534
471sub handle_dir { 535sub handle_dir {
472 my $self = shift; 536 my $self = shift;
473 my $idx = $self->diridx; 537 my $idx = $self->diridx;
474 538
475 $self->response(200, "ok", 539 $self->response (200, "ok",
476 { 540 {
477 "Content-Type" => "text/html", 541 "Content-Type" => "text/html; charset=utf-8",
478 "Content-Length" => length $idx, 542 "Content-Length" => length $idx,
479 "Last-Modified" => time2str ($self->{stat}[9]), 543 "Last-Modified" => time2str ($self->{stat}[9]),
480 }, 544 },
481 $idx); 545 $idx);
482} 546}
483 547
484sub handle_file { 548sub handle_file {
485 my ($self, $queue) = @_; 549 my ($self, $queue, $tbf) = @_;
486 my $length = $self->{stat}[7]; 550 my $length = $self->{stat}[7];
487 my $hdr = { 551 my $hdr = {
488 "Last-Modified" => time2str ((stat _)[9]), 552 "Last-Modified" => time2str ((stat _)[9]),
553 "Accept-Ranges" => "bytes",
489 }; 554 };
490 555
491 my @code = (200, "ok"); 556 my @code = (200, "ok");
492 my ($l, $h); 557 my ($l, $h);
493 558
… …
503 } 568 }
504 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 569 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
505 } 570 }
506 $hdr->{"Content-Range"} = "bytes */$length"; 571 $hdr->{"Content-Range"} = "bytes */$length";
507 $hdr->{"Content-Length"} = $length; 572 $hdr->{"Content-Length"} = $length;
508 $self->err(416, "not satisfiable", $hdr, ""); 573 $self->err (416, "not satisfiable", $hdr, "");
509 574
510satisfiable: 575satisfiable:
511 # check for segmented downloads 576 # check for segmented downloads
512 if ($l && $::NO_SEGMENTED) { 577 if ($l && $::NO_SEGMENTED) {
513 my $timeout = $::NOW + 15; 578 my $timeout = $::NOW + 15;
514 while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { 579 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
515 if ($timeout <= $::NOW) { 580 if ($timeout <= $::NOW) {
516 $self->block($::BLOCKTIME, "segmented downloads are forbidden"); 581 $self->block ($::BLOCKTIME, "segmented downloads are forbidden");
517 #$self->err_segmented_download; 582 #$self->err_segmented_download;
518 } else { 583 } else {
519 $httpevent->wait; 584 $httpevent->wait;
520 } 585 }
521 } 586 }
… …
532 597
533 $self->{path} =~ /\.([^.]+)$/; 598 $self->{path} =~ /\.([^.]+)$/;
534 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; 599 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
535 $hdr->{"Content-Length"} = $length; 600 $hdr->{"Content-Length"} = $length;
536 601
537 $self->response(@code, $hdr, ""); 602 $self->response (@code, $hdr, "");
538 603
539 if ($self->{method} eq "GET") { 604 if ($self->{method} eq "GET") {
540 $self->{time} = $::NOW; 605 $self->{time} = $::NOW;
606 $self->{written} = 0;
541 607
542 my $current = $Coro::current;
543
544 my ($fh, $buf, $r);
545
546 open $fh, "<", $self->{path} 608 open my $fh, "<", $self->{path}
547 or die "$self->{path}: late open failure ($!)"; 609 or die "$self->{path}: late open failure ($!)";
548 610
549 $h -= $l - 1; 611 $h -= $l - 1;
550 612
551 if (0) { # !AIO
552 if ($l) {
553 sysseek $fh, $l, 0;
554 }
555 }
556
557 my $transfer = $queue->start_transfer($h); 613 my $transfer = $queue->start_transfer ($h);
558 my $locked; 614 my $locked;
559 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size 615 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
560 616
561 while ($h > 0) { 617 while ($h > 0) {
562 unless ($locked) { 618 unless ($locked) {
563 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { 619 if ($locked ||= $transfer->try ($::WAIT_INTERVAL)) {
564 $bufsize = $::BUFSIZE; 620 $bufsize = $::BUFSIZE;
565 $self->{time} = $::NOW; 621 $self->{time} = $::NOW;
622 $self->{written} = 0;
566 } 623 }
567 } 624 }
568 625
569 if ($blocked{$self->{remote_id}}) { 626 if ($blocked{$self->{remote_id}}) {
570 $self->{h}{connection} = "close"; 627 $self->{h}{connection} = "close";
571 die bless {}, err:: 628 die bless {}, err::;
572 } 629 }
573 630
574 if (0) { # !AIO 631 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0
575 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
576 or last; 632 or last;
577 } else { 633
578 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), 634 $tbf->request (length $buf);
579 $buf, 0, sub {
580 $r = $_[0];
581 Coro::ready($current);
582 });
583 &Coro::schedule;
584 last unless $r;
585 }
586 my $w = syswrite $self->{fh}, $buf 635 my $w = syswrite $self->{fh}, $buf
587 or last; 636 or last;
588 $::written += $w; 637 $::written += $w;
589 $self->{written} += $w; 638 $self->{written} += $w;
590 $l += $r; 639 $l += $w;
591 } 640 }
592 641
593 close $fh; 642 close $fh;
594 } 643 }
595} 644}
596 645
5971; 6461
647

Diff Legend

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