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/cvs/cvsroot/Coro/myhttpd/httpd.pl
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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.56 by root, Mon Dec 3 04:57:22 2001 UTC vs.
Revision 1.83 by root, Sun Dec 3 17:49:22 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
178 $::conns--; 202 --$::conns;
179} 203}
204
205sub prune_cache {
206 my $hash = $_[0];
207
208 for (keys %$hash) {
209 if (ref $hash->{$_} eq HASH::) {
210 prune_cache($hash->{$_});
211 unless (scalar keys %{$hash->{$_}}) {
212 delete $hash->{$_};
213 }
214 }
215 }
216}
217
218sub prune_caches {
219 prune_cache \%conn;
220 prune_cache \%uri;
221
222 for (keys %blocked) {
223 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
224 }
225}
226
227Event->timer (interval => 60, cb => \&prune_caches);
180 228
181sub slog { 229sub slog {
182 my $self = shift; 230 my $self = shift;
183 main::slog($_[0], "$self->{remote_id}> $_[1]"); 231 main::slog($_[0], "$self->{remote_id}> $_[1]");
184} 232}
185 233
186sub response { 234sub response {
187 my ($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";
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 $self->{h}{connection} = "close"
200 } 249 }
201 } 250 }
202 } 251 }
203 252
253 if ($self->{method} ne "HEAD"
254 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
255 && 400 < length $content
256 && $hdr->{"Content-Length"} == length $content
257 && !exists $hdr->{"Content-Encoding"}
258 ) {
259 my $orig = length $content;
260 $hdr->{"Content-Encoding"} = "gzip";
261 $content = Compress::Zlib::memGzip(\$content);
262 $hdr->{"Content-Length"} = length $content;
263 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
264 }
265
204 $res .= "Date: $HTTP_NOW\015\012"; 266 $res .= "Date: $HTTP_NOW\015\012";
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
224sub err { 287sub err {
225 my $self = shift; 288 my $self = shift;
226 my ($code, $msg, $hdr, $content) = @_; 289 my ($code, $msg, $hdr, $content) = @_;
… …
230 $hdr->{"Content-Type"} = "text/plain"; 293 $hdr->{"Content-Type"} = "text/plain";
231 $hdr->{"Content-Length"} = length $content; 294 $hdr->{"Content-Length"} = length $content;
232 } 295 }
233 $hdr->{"Connection"} = "close"; 296 $hdr->{"Connection"} = "close";
234 297
235 $self->response($code, $msg, $hdr, $content); 298 $self->response ($code, $msg, $hdr, $content);
236 299
237 die bless {}, err::; 300 die bless {}, err::
238} 301}
239 302
240sub handle { 303sub handle {
241 my $self = shift; 304 my $self = shift;
242 my $fh = $self->{fh}; 305 my $fh = $self->{fh};
243 306
244 my $host; 307 my $host;
245 308
246 $fh->timeout($::REQ_TIMEOUT); 309 $fh->timeout($::REQ_TIMEOUT);
247 while() { 310 while () {
248 $self->{reqs}++; 311 $self->{reqs}++;
249 312
250 # read request and parse first line 313 # read request and parse first line
251 my $req = $fh->readline("\015\012\015\012"); 314 my $req = $fh->readline("\015\012\015\012");
252 315
… …
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 $self->err(400, "bad request");
… …
414 477
415 if ($self->{name} =~ s%^/internal/([^/]+)%%) { 478 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
416 if ($::internal{$1}) { 479 if ($::internal{$1}) {
417 $::internal{$1}->($self); 480 $::internal{$1}->($self);
418 } else { 481 } else {
419 $self->err(404, "not found"); 482 $self->err (404, "not found");
420 } 483 }
421 } else { 484 } else {
422 485
423 stat $path 486 stat $path
424 or $self->err(404, "not found"); 487 or $self->err (404, "not found");
425 488
426 $self->{stat} = [stat _]; 489 $self->{stat} = [stat _];
427 490
428 # idiotic netscape sends idiotic headers AGAIN 491 # idiotic netscape sends idiotic headers AGAIN
429 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 492 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
… …
432 if (-d _ && -r _) { 495 if (-d _ && -r _) {
433 # directory 496 # directory
434 if ($path !~ /\/$/) { 497 if ($path !~ /\/$/) {
435 # create a redirect to get the trailing "/" 498 # create a redirect to get the trailing "/"
436 # we don't try to avoid the :80 499 # we don't try to avoid the :80
437 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); 500 $self->err (301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
438 } else { 501 } else {
439 $ims < $self->{stat}[9] 502 $ims < $self->{stat}[9]
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 _) {
451 -x _ and $self->err(403, "forbidden"); 514 -x _ and $self->err (403, "forbidden");
452 515
453 if (%{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { 516 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
454 my $timeout = $::NOW + 10; 517 my $timeout = $::NOW + 10;
455 while (%{$conn{$self->{remote_id}}} >= $::MAX_TRANSFERS_IP) { 518 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
456 if ($timeout < $::NOW) { 519 if ($timeout < $::NOW) {
457 $self->block($::BLOCKTIME, "too many connections"); 520 $self->block($::BLOCKTIME, "too many connections");
458 } else { 521 } else {
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}
470 533
471sub handle_dir { 534sub handle_dir {
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 $idx);
482} 545}
483 546
484sub handle_file { 547sub handle_file {
485 my ($self, $queue) = @_; 548 my ($self, $queue, $tbf) = @_;
486 my $length = $self->{stat}[7]; 549 my $length = $self->{stat}[7];
487 my $hdr = { 550 my $hdr = {
488 "Last-Modified" => time2str ((stat _)[9]), 551 "Last-Modified" => time2str ((stat _)[9]),
552 "Accept-Ranges" => "bytes",
489 }; 553 };
490 554
491 my @code = (200, "ok"); 555 my @code = (200, "ok");
492 my ($l, $h); 556 my ($l, $h);
493 557
… …
503 } 567 }
504 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 568 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
505 } 569 }
506 $hdr->{"Content-Range"} = "bytes */$length"; 570 $hdr->{"Content-Range"} = "bytes */$length";
507 $hdr->{"Content-Length"} = $length; 571 $hdr->{"Content-Length"} = $length;
508 $self->err(416, "not satisfiable", $hdr, ""); 572 $self->err (416, "not satisfiable", $hdr, "");
509 573
510satisfiable: 574satisfiable:
511 # check for segmented downloads 575 # check for segmented downloads
512 if ($l && $::NO_SEGMENTED) { 576 if ($l && $::NO_SEGMENTED) {
513 my $timeout = $::NOW + 15; 577 my $timeout = $::NOW + 15;
514 while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { 578 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
515 if ($timeout <= $::NOW) { 579 if ($timeout <= $::NOW) {
516 $self->block($::BLOCKTIME, "segmented downloads are forbidden"); 580 $self->block ($::BLOCKTIME, "segmented downloads are forbidden");
517 #$self->err_segmented_download; 581 #$self->err_segmented_download;
518 } else { 582 } else {
519 $httpevent->wait; 583 $httpevent->wait;
520 } 584 }
521 } 585 }
… …
532 596
533 $self->{path} =~ /\.([^.]+)$/; 597 $self->{path} =~ /\.([^.]+)$/;
534 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; 598 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
535 $hdr->{"Content-Length"} = $length; 599 $hdr->{"Content-Length"} = $length;
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;
605 $self->{written} = 0;
541 606
542 my $current = $Coro::current;
543
544 my ($fh, $buf, $r);
545
546 open $fh, "<", $self->{path} 607 open my $fh, "<", $self->{path}
547 or die "$self->{path}: late open failure ($!)"; 608 or die "$self->{path}: late open failure ($!)";
548 609
549 $h -= $l - 1; 610 $h -= $l - 1;
550 611
551 if (0) { # !AIO
552 if ($l) {
553 sysseek $fh, $l, 0;
554 }
555 }
556
557 my $transfer = $queue->start_transfer($h); 612 my $transfer = $queue->start_transfer ($h);
558 my $locked; 613 my $locked;
559 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size 614 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
560 615
561 while ($h > 0) { 616 while ($h > 0) {
562 unless ($locked) { 617 unless ($locked) {
563 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { 618 if ($locked ||= $transfer->try ($::WAIT_INTERVAL)) {
564 $bufsize = $::BUFSIZE; 619 $bufsize = $::BUFSIZE;
565 $self->{time} = $::NOW; 620 $self->{time} = $::NOW;
621 $self->{written} = 0;
566 } 622 }
567 } 623 }
568 624
569 if ($blocked{$self->{remote_id}}) { 625 if ($blocked{$self->{remote_id}}) {
570 $self->{h}{connection} = "close"; 626 $self->{h}{connection} = "close";
571 die bless {}, err:: 627 die bless {}, err::;
572 } 628 }
573 629
574 if (0) { # !AIO 630 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0
575 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
576 or last; 631 or last;
577 } else { 632
578 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), 633 $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 634 my $w = syswrite $self->{fh}, $buf
587 or last; 635 or last;
588 $::written += $w; 636 $::written += $w;
589 $self->{written} += $w; 637 $self->{written} += $w;
590 $l += $r; 638 $l += $w;
591 } 639 }
592 640
593 close $fh; 641 close $fh;
594 } 642 }
595} 643}
596 644
5971; 6451
646

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