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

Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.31 by root, Mon Aug 27 05:05:26 2001 UTC vs.
Revision 1.51 by root, Thu Nov 29 01:50:41 2001 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;
6
7use HTTP::Date;
8use POSIX ();
5 9
6no utf8; 10no utf8;
7use bytes; 11use bytes;
8 12
9# at least on my machine, this thingy serves files 13# at least on my machine, this thingy serves files
25 my $level = shift; 29 my $level = shift;
26 my $format = shift; 30 my $format = shift;
27 printf "---: $format\n", @_; 31 printf "---: $format\n", @_;
28} 32}
29 33
30my $connections = new Coro::Semaphore $MAX_CONNECTS; 34our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
35our $httpevent = new Coro::Signal;
36
37our $wait_factor = 0.95;
38
39our @transfers = (
40 (new transferqueue $MAX_TRANSFERS_SMALL),
41 (new transferqueue $MAX_TRANSFERS_LARGE),
42);
31 43
32my @newcons; 44my @newcons;
33my @pool; 45my @pool;
34 46
35# one "execution thread" 47# one "execution thread"
36sub handler { 48sub handler {
37 while () { 49 while () {
38 my $new = pop @newcons;
39 if ($new) { 50 if (@newcons) {
40 eval { 51 eval {
41 conn->new(@$new)->handle; 52 conn->new(@{pop @newcons})->handle;
42 }; 53 };
43 slog 1, "$@" if $@ && !ref $@; 54 slog 1, "$@" if $@ && !ref $@;
44 $connections->up; 55 $connections->up;
45 } else { 56 } else {
46 last if @pool >= $MAX_POOL; 57 last if @pool >= $MAX_POOL;
48 schedule; 59 schedule;
49 } 60 }
50 } 61 }
51} 62}
52 63
64sub listen_on {
65 my $listen = $_[0];
66
67 push @listen_sockets, $listen;
68
69 # the "main thread"
70 async {
71 slog 1, "accepting connections";
72 while () {
73 $connections->down;
74 push @newcons, [$listen->accept];
75 #slog 3, "accepted @$connections ".scalar(@pool);
76 if (@pool) {
77 (pop @pool)->ready;
78 } else {
79 async \&handler;
80 }
81
82 }
83 };
84}
85
53my $http_port = new Coro::Socket 86my $http_port = new Coro::Socket
54 LocalAddr => $SERVER_HOST, 87 LocalAddr => $SERVER_HOST,
55 LocalPort => $SERVER_PORT, 88 LocalPort => $SERVER_PORT,
56 ReuseAddr => 1, 89 ReuseAddr => 1,
57 Listen => 50, 90 Listen => 50,
58 or die "unable to start server"; 91 or die "unable to start server";
59 92
60push @listen_sockets, $http_port; 93listen_on $http_port;
61 94
62# the "main thread" 95if ($SERVER_PORT2) {
63async { 96 my $http_port = new Coro::Socket
64 slog 1, "accepting connections"; 97 LocalAddr => $SERVER_HOST,
65 while () { 98 LocalPort => $SERVER_PORT2,
66 $connections->down; 99 ReuseAddr => 1,
67 push @newcons, [$http_port->accept]; 100 Listen => 50,
68 #slog 3, "accepted @$connections ".scalar(@pool); 101 or die "unable to start server";
102
103 listen_on $http_port;
104}
105
106our $NOW;
107our $HTTP_NOW;
108
109Event->timer(interval => 1, hard => 1, cb => sub {
69 $::NOW = time; 110 $NOW = time;
70 if (@pool) { 111 $HTTP_NOW = time2str $NOW;
71 (pop @pool)->ready; 112})->now;
72 } else {
73 async \&handler;
74 }
75
76 }
77};
78 113
79package conn; 114package conn;
80 115
81use Socket; 116use Socket;
82use HTTP::Date; 117use HTTP::Date;
83use Convert::Scalar 'weaken'; 118use Convert::Scalar 'weaken';
84use Linux::AIO; 119use Linux::AIO;
85 120
86Linux::AIO::min_parallel $::AIO_PARALLEL; 121Linux::AIO::min_parallel $::AIO_PARALLEL;
87
88my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
89 122
90Event->io(fd => Linux::AIO::poll_fileno, 123Event->io(fd => Linux::AIO::poll_fileno,
91 poll => 'r', async => 1, 124 poll => 'r', async => 1,
92 cb => \&Linux::AIO::poll_cb); 125 cb => \&Linux::AIO::poll_cb);
93 126
111 144
112read_mimetypes; 145read_mimetypes;
113 146
114sub new { 147sub new {
115 my $class = shift; 148 my $class = shift;
149 my $fh = shift;
116 my $peername = shift; 150 my $peername = shift;
117 my $fh = shift;
118 my $self = bless { fh => $fh }, $class; 151 my $self = bless { fh => $fh }, $class;
119 my (undef, $iaddr) = unpack_sockaddr_in $peername 152 my (undef, $iaddr) = unpack_sockaddr_in $peername
120 or $self->err(500, "unable to decode peername"); 153 or $self->err(500, "unable to decode peername");
121 154
155 $self->{remote_addr} =
122 $self->{remote_addr} = inet_ntoa $iaddr; 156 $self->{remote_id} = inet_ntoa $iaddr;
123 $self->{time} = $::NOW; 157 $self->{time} = $::NOW;
124 158
125 # enter ourselves into various lists 159 weaken ($Coro::current->{conn} = $self);
126 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
127 160
128 $::conns++; 161 $::conns++;
129 162
130 $self; 163 $self;
131} 164}
132 165
133sub DESTROY { 166sub DESTROY {
134 my $self = shift; 167 my $self = shift;
135
136 $::conns--; 168 $::conns--;
137
138 $self->eoconn; 169 $self->eoconn;
139 delete $conn{$self->{remote_addr}}{$self*1};
140} 170}
141 171
142# end of connection 172# end of connection
143sub eoconn { 173sub eoconn {
144 my $self = shift; 174 my $self = shift;
175
176 # clean up hints
177 delete $conn{$self->{remote_id}}{$self*1};
145 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 178 delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1};
179
180 $httpevent->broadcast;
146} 181}
147 182
148sub slog { 183sub slog {
149 my $self = shift; 184 my $self = shift;
150 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); 185 main::slog($_[0], "$self->{remote_id}> $_[1]");
151} 186}
152 187
153sub response { 188sub response {
154 my ($self, $code, $msg, $hdr, $content) = @_; 189 my ($self, $code, $msg, $hdr, $content) = @_;
155 my $res = "HTTP/1.1 $code $msg\015\012"; 190 my $res = "HTTP/1.1 $code $msg\015\012";
156 191
157 $self->{h}{connection} ||= $hdr->{Connection}; 192 if (exists $hdr->{Connection}) {
193 if ($hdr->{Connection} =~ /close/) {
194 $self->{h}{connection} = "close"
195 }
196 } else {
197 if ($self->{version} < 1.1) {
198 if ($self->{h}{connection} =~ /keep-alive/i) {
199 $hdr->{Connection} = "Keep-Alive";
200 } else {
201 $self->{h}{connection} = "close"
202 }
203 }
204 }
158 205
159 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 206 $res .= "Date: $HTTP_NOW\015\012";
160 207
161 while (my ($h, $v) = each %$hdr) { 208 while (my ($h, $v) = each %$hdr) {
162 $res .= "$h: $v\015\012" 209 $res .= "$h: $v\015\012"
163 } 210 }
164 $res .= "\015\012"; 211 $res .= "\015\012";
165 212
166 $res .= $content if defined $content and $self->{method} ne "HEAD"; 213 $res .= $content if defined $content and $self->{method} ne "HEAD";
167 214
168 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; 215 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $NOW).
216 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.
217 " \"$self->{h}{referer}\"\n";
169 218
170 print $accesslog $log if $accesslog; 219 print $accesslog $log if $accesslog;
171 print STDERR $log; 220 print STDERR $log;
172 221
173 $self->{written} += 222 $self->{written} +=
177sub err { 226sub err {
178 my $self = shift; 227 my $self = shift;
179 my ($code, $msg, $hdr, $content) = @_; 228 my ($code, $msg, $hdr, $content) = @_;
180 229
181 unless (defined $content) { 230 unless (defined $content) {
182 $content = "$code $msg"; 231 $content = "$code $msg\n";
183 $hdr->{"Content-Type"} = "text/plain"; 232 $hdr->{"Content-Type"} = "text/plain";
184 $hdr->{"Content-Length"} = length $content; 233 $hdr->{"Content-Length"} = length $content;
185 } 234 }
186 $hdr->{"Connection"} = "close"; 235 $hdr->{"Connection"} = "close";
187 236
212 } 261 }
213 262
214 $self->{h} = {}; 263 $self->{h} = {};
215 264
216 $fh->timeout($::RES_TIMEOUT); 265 $fh->timeout($::RES_TIMEOUT);
217 my $ip = $self->{remote_addr};
218
219 if ($blocked{$ip}) {
220 $self->err_blocked($blocked{$ip})
221 if $blocked{$ip} > $::NOW;
222
223 delete $blocked{$ip};
224 }
225
226 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
227 my $delay = 120;
228 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
229 if ($delay <= 0) {
230 $self->slog(2, "blocked ip $ip");
231 $self->err_blocked;
232 } else {
233 Coro::Event::do_timer(after => 3);
234 $delay -= 3;
235 }
236 }
237 }
238 266
239 $req =~ /^(?:\015\012)? 267 $req =~ /^(?:\015\012)?
240 (GET|HEAD) \040+ 268 (GET|HEAD) \040+
241 ([^\040]+) \040+ 269 ([^\040]+) \040+
242 HTTP\/([0-9]+\.[0-9]+) 270 HTTP\/([0-9]+\.[0-9]+)
267 295
268 $self->{h}{$h} = substr $v, 1 296 $self->{h}{$h} = substr $v, 1
269 while ($h, $v) = each %hdr; 297 while ($h, $v) = each %hdr;
270 } 298 }
271 299
300 # remote id should be unique per user
301 my $id = $self->{remote_addr};
302
303 if (exists $self->{h}{"client-ip"}) {
304 $id .= "[".$self->{h}{"client-ip"}."]";
305 } elsif (exists $self->{h}{"x-forwarded-for"}) {
306 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
307 }
308
309 $self->{remote_id} = $id;
310
311 if ($blocked{$id}) {
312 $self->err_blocked($blocked{$id})
313 if $blocked{$id} > $::NOW;
314
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 $httpevent->wait;
326 }
327 }
328 }
329
272 # find out server name and port 330 # find out server name and port
273 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { 331 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
274 $host = $1; 332 $host = $1;
275 } else { 333 } else {
276 $host = $self->{h}{host}; 334 $host = $self->{h}{host};
278 336
279 if (defined $host) { 337 if (defined $host) {
280 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; 338 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
281 } else { 339 } else {
282 ($self->{server_port}, $host) 340 ($self->{server_port}, $host)
283 = unpack_sockaddr_in $self->{fh}->getsockname 341 = unpack_sockaddr_in $self->{fh}->sockname
284 or $self->err(500, "unable to get socket name"); 342 or $self->err(500, "unable to get socket name");
285 $host = inet_ntoa $host; 343 $host = inet_ntoa $host;
286 } 344 }
287 345
288 $self->{server_name} = $host; 346 $self->{server_name} = $host;
289 347
290 # remote id should be unique per user 348 # enter ourselves into various lists
291 $self->{remote_id} = $self->{remote_addr}; 349 weaken ($conn{$id}{$self*1} = $self);
292
293 if (exists $self->{h}{"client-ip"}) {
294 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
295 } elsif (exists $self->{h}{"x-forwarded-for"}) {
296 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
297 }
298
299 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 350 weaken ($uri{$id}{$self->{uri}}{$self*1} = $self);
300 351
301 eval { 352 eval {
302 $self->map_uri; 353 $self->map_uri;
303 $self->respond; 354 $self->respond;
304 }; 355 };
305 356
306 $self->eoconn; 357 $self->eoconn;
307 358
308 die if $@ && !ref $@; 359 die if $@ && !ref $@;
309 360
310 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; 361 last if $self->{h}{connection} =~ /close/;
362
363 $httpevent->broadcast;
311 364
312 $fh->timeout($::PER_TIMEOUT); 365 $fh->timeout($::PER_TIMEOUT);
313 } 366 }
314} 367}
315 368
365 418
366sub respond { 419sub respond {
367 my $self = shift; 420 my $self = shift;
368 my $path = $self->{path}; 421 my $path = $self->{path};
369 422
370 stat $path 423 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
371 or $self->err(404, "not found"); 424 if ($::internal{$1}) {
372 425 $::internal{$1}->($self);
373 $self->{stat} = [stat _];
374
375 # idiotic netscape sends idiotic headers AGAIN
376 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
377 ? str2time $1 : 0;
378
379 if (-d _ && -r _) {
380 # directory
381 if ($path !~ /\/$/) {
382 # create a redirect to get the trailing "/"
383 # we don't try to avoid the :80
384 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
385 } else { 426 } else {
386 $ims < $self->{stat}[9] 427 $self->err(404, "not found");
428 }
429 } else {
430
431 stat $path
387 or $self->err(304, "not modified"); 432 or $self->err(404, "not found");
388 433
389 if (-r "$path/index.html") { 434 $self->{stat} = [stat _];
390 $self->{path} .= "/index.html"; 435
391 $self->handle_file; 436 # idiotic netscape sends idiotic headers AGAIN
437 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
438 ? str2time $1 : 0;
439
440 if (-d _ && -r _) {
441 # directory
442 if ($path !~ /\/$/) {
443 # create a redirect to get the trailing "/"
444 # we don't try to avoid the :80
445 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
392 } else { 446 } else {
447 $ims < $self->{stat}[9]
448 or $self->err(304, "not modified");
449
450 if (-r "$path/index.html") {
451 # replace directory "size" by index.html filesize
452 $self->{stat}[7] = (stat ($self->{path} .= "/index.html"))[7];
453 $self->handle_file;
454 } else {
393 $self->handle_dir; 455 $self->handle_dir;
394 } 456 }
395 } 457 }
396 } elsif (-f _ && -r _) { 458 } elsif (-f _ && -r _) {
397 -x _ and $self->err(403, "forbidden"); 459 -x _ and $self->err(403, "forbidden");
398 $self->handle_file; 460 $self->handle_file;
399 } else { 461 } else {
400 $self->err(404, "not found"); 462 $self->err(404, "not found");
463 }
401 } 464 }
402} 465}
403 466
404sub handle_dir { 467sub handle_dir {
405 my $self = shift; 468 my $self = shift;
407 470
408 $self->response(200, "ok", 471 $self->response(200, "ok",
409 { 472 {
410 "Content-Type" => "text/html", 473 "Content-Type" => "text/html",
411 "Content-Length" => length $idx, 474 "Content-Length" => length $idx,
475 #d# directories change all the time, so X-
476 "X-Last-Modified" => time2str ((stat _)[9]),
412 }, 477 },
413 $idx); 478 $idx);
414} 479}
415 480
416sub handle_file { 481sub handle_file {
417 my $self = shift; 482 my $self = shift;
418 my $length = -s _; 483 my $length = $self->{stat}[7];
484 my $queue = $::transfers[$length >= $::TRANSFER_SMALL];
419 my $hdr = { 485 my $hdr = {
420 "Last-Modified" => time2str ((stat _)[9]), 486 "Last-Modified" => time2str ((stat _)[9]),
421 }; 487 };
422 488
423 my @code = (200, "ok"); 489 my @code = (200, "ok");
435 } 501 }
436 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 502 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
437 } 503 }
438 $hdr->{"Content-Range"} = "bytes */$length"; 504 $hdr->{"Content-Range"} = "bytes */$length";
439 $hdr->{"Content-Length"} = $length; 505 $hdr->{"Content-Length"} = $length;
440 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
441 $self->err(416, "not satisfiable", $hdr, ""); 506 $self->err(416, "not satisfiable", $hdr, "");
442 507
443satisfiable: 508satisfiable:
444 # check for segmented downloads 509 # check for segmented downloads
445 if ($l && $::NO_SEGMENTED) { 510 if ($l && $::NO_SEGMENTED) {
446 my $delay = 180; 511 my $delay = $::NOW + $::PER_TIMEOUT + 15;
447 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 512 while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
448 if ($delay <= 0) { 513 if ($delay <= $::NOW) {
449 $self->err_segmented_download; 514 $self->err_segmented_download;
450 } else { 515 } else {
451 Coro::Event::do_timer(after => 3); $delay -= 3; 516 $httpevent->wait;
452 } 517 }
453 } 518 }
454 } 519 }
455 520
456 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 521 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
467 $hdr->{"Content-Length"} = $length; 532 $hdr->{"Content-Length"} = $length;
468 533
469 $self->response(@code, $hdr, ""); 534 $self->response(@code, $hdr, "");
470 535
471 if ($self->{method} eq "GET") { 536 if ($self->{method} eq "GET") {
537 $self->{time} = $::NOW;
538
539 my $current = $Coro::current;
540
472 my ($fh, $buf, $r); 541 my ($fh, $buf, $r);
473 my $current = $Coro::current; 542
474 open $fh, "<", $self->{path} 543 open $fh, "<", $self->{path}
475 or die "$self->{path}: late open failure ($!)"; 544 or die "$self->{path}: late open failure ($!)";
476 545
477 $h -= $l - 1; 546 $h -= $l - 1;
478 547
479 if (0) { 548 if (0) { # !AIO
480 if ($l) { 549 if ($l) {
481 sysseek $fh, $l, 0; 550 sysseek $fh, $l, 0;
482 } 551 }
483 } 552 }
553
554 my $transfer = $queue->start_transfer;
555 my $locked;
556 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
484 557
485 while ($h > 0) { 558 while ($h > 0) {
559 unless ($locked) {
560 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
561 $bufsize = $::BUFSIZE;
562 $self->{time} = $::NOW;
563 }
564 }
565
486 if (0) { 566 if (0) { # !AIO
487 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 567 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
488 or last; 568 or last;
489 } else { 569 } else {
490 undef $buf; 570 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h),
491 $aio_requests->down;
492 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
493 $buf, 0, sub { 571 $buf, 0, sub {
494 $r = $_[0]; 572 $r = $_[0];
495 $current->ready; 573 Coro::ready($current);
496 }); 574 });
497 &Coro::schedule; 575 &Coro::schedule;
498 $aio_requests->up;
499 last unless $r; 576 last unless $r;
500 } 577 }
501 my $w = $self->{fh}->syswrite($buf) 578 my $w = syswrite $self->{fh}, $buf
502 or last; 579 or last;
503 $::written += $w; 580 $::written += $w;
504 $self->{written} += $w; 581 $self->{written} += $w;
505 $l += $r; 582 $l += $r;
506 } 583 }
507 }
508 584
509 close $fh; 585 close $fh;
586 }
510} 587}
511 588
5121; 5891;

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines