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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.28 by root, Mon Aug 20 16:58:19 2001 UTC vs.
Revision 1.32 by root, Wed Aug 29 01:32:50 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;
10
11our @wait_time = (0); # used to calculcate avg. waiting time
8 12
9# at least on my machine, this thingy serves files 13# at least on my machine, this thingy serves files
10# quite a bit faster than apache, ;) 14# quite a bit faster than apache, ;)
11# and quite a bit slower than thttpd :( 15# and quite a bit slower than thttpd :(
12 16
… …
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 $transfers = new Coro::Semaphore $MAX_TRANSFER || 50;
31 36
32my @newcons; 37my @newcons;
33my @pool; 38my @pool;
34 39
35# one "execution thread" 40# one "execution thread"
… …
57 Listen => 50, 62 Listen => 50,
58 or die "unable to start server"; 63 or die "unable to start server";
59 64
60push @listen_sockets, $http_port; 65push @listen_sockets, $http_port;
61 66
67our $NOW;
68our $HTTP_NOW;
69
70Event->timer(interval => 1, hard => 1, cb => sub {
71 $NOW = time;
72 $HTTP_NOW = time2str $NOW;
73});
74
62# the "main thread" 75# the "main thread"
63async { 76async {
64 slog 1, "accepting connections"; 77 slog 1, "accepting connections";
65 while () { 78 while () {
66 $connections->down; 79 $connections->down;
67 push @newcons, [$http_port->accept]; 80 push @newcons, [$http_port->accept];
68 #slog 3, "accepted @$connections ".scalar(@pool); 81 #slog 3, "accepted @$connections ".scalar(@pool);
69 $::NOW = time;
70 if (@pool) { 82 if (@pool) {
71 (pop @pool)->ready; 83 (pop @pool)->ready;
72 } else { 84 } else {
73 async \&handler; 85 async \&handler;
74 } 86 }
… …
82use HTTP::Date; 94use HTTP::Date;
83use Convert::Scalar 'weaken'; 95use Convert::Scalar 'weaken';
84use Linux::AIO; 96use Linux::AIO;
85 97
86Linux::AIO::min_parallel $::AIO_PARALLEL; 98Linux::AIO::min_parallel $::AIO_PARALLEL;
99
100my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
87 101
88Event->io(fd => Linux::AIO::poll_fileno, 102Event->io(fd => Linux::AIO::poll_fileno,
89 poll => 'r', async => 1, 103 poll => 'r', async => 1,
90 cb => \&Linux::AIO::poll_cb); 104 cb => \&Linux::AIO::poll_cb);
91 105
… …
143 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 157 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
144} 158}
145 159
146sub slog { 160sub slog {
147 my $self = shift; 161 my $self = shift;
148 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 162 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
149} 163}
150 164
151sub response { 165sub response {
152 my ($self, $code, $msg, $hdr, $content) = @_; 166 my ($self, $code, $msg, $hdr, $content) = @_;
153 my $res = "HTTP/1.1 $code $msg\015\012"; 167 my $res = "HTTP/1.1 $code $msg\015\012";
154 168
155 $self->{h}{connection} ||= $hdr->{Connection}; 169 $self->{h}{connection} ||= $hdr->{Connection};
156 170
157 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 171 $res .= "Date: $HTTP_NOW\015\012";
158 172
159 while (my ($h, $v) = each %$hdr) { 173 while (my ($h, $v) = each %$hdr) {
160 $res .= "$h: $v\015\012" 174 $res .= "$h: $v\015\012"
161 } 175 }
162 $res .= "\015\012"; 176 $res .= "\015\012";
… …
186 $self->response($code, $msg, $hdr, $content); 200 $self->response($code, $msg, $hdr, $content);
187 201
188 die bless {}, err::; 202 die bless {}, err::;
189} 203}
190 204
191sub err_blocked {
192 my $self = shift;
193 my $ip = $self->{remote_addr};
194 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
195
196 Coro::Event::do_timer(after => 20*rand);
197
198 $self->err(401, "too many connections",
199 {
200 "Content-Type" => "text/html",
201 "Retry-After" => $::BLOCKTIME,
202 "Warning" => "Please do NOT retry, you have been blocked",
203 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
204 "Connection" => "close",
205 },
206 <<EOF);
207<html>
208<head>
209<title>Too many connections</title>
210</head>
211<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
212
213<p>You have been blocked because you opened too many connections. You
214may retry at</p>
215
216 <p><blockquote>$time.</blockquote></p>
217
218<p>Until then, each new access will renew the block. You might want to have a
219look at the <a href="http://www.goof.com/pcg/marc/animefaq.html#connectionlimit">FAQ</a>.</p>
220
221</body></html>
222EOF
223}
224
225sub handle { 205sub handle {
226 my $self = shift; 206 my $self = shift;
227 my $fh = $self->{fh}; 207 my $fh = $self->{fh};
208
209 my $host;
228 210
229 $fh->timeout($::REQ_TIMEOUT); 211 $fh->timeout($::REQ_TIMEOUT);
230 while() { 212 while() {
231 $self->{reqs}++; 213 $self->{reqs}++;
232 214
… …
252 234
253 delete $blocked{$ip}; 235 delete $blocked{$ip};
254 } 236 }
255 237
256 if (%{$conn{$ip}} > $::MAX_CONN_IP) { 238 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
239 my $delay = 120;
240 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
241 if ($delay <= 0) {
257 $self->slog(2, "blocked ip $ip"); 242 $self->slog(2, "blocked ip $ip");
258 $self->err_blocked; 243 $self->err_blocked;
244 } else {
245 Coro::Event::do_timer(after => 3);
246 $delay -= 3;
247 }
248 }
259 } 249 }
260 250
261 $req =~ /^(?:\015\012)? 251 $req =~ /^(?:\015\012)?
262 (GET|HEAD) \040+ 252 (GET|HEAD) \040+
263 ([^\040]+) \040+ 253 ([^\040]+) \040+
… …
289 279
290 $self->{h}{$h} = substr $v, 1 280 $self->{h}{$h} = substr $v, 1
291 while ($h, $v) = each %hdr; 281 while ($h, $v) = each %hdr;
292 } 282 }
293 283
284 # find out server name and port
285 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
286 $host = $1;
287 } else {
288 $host = $self->{h}{host};
289 }
290
291 if (defined $host) {
294 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 292 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
293 } else {
294 ($self->{server_port}, $host)
295 = unpack_sockaddr_in $self->{fh}->getsockname
296 or $self->err(500, "unable to get socket name");
297 $host = inet_ntoa $host;
298 }
299
300 $self->{server_name} = $host;
301
302 # remote id should be unique per user
303 $self->{remote_id} = $self->{remote_addr};
304
305 if (exists $self->{h}{"client-ip"}) {
306 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
307 } elsif (exists $self->{h}{"x-forwarded-for"}) {
308 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
309 }
295 310
296 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 311 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
297 312
298 eval { 313 eval {
299 $self->map_uri; 314 $self->map_uri;
… …
302 317
303 $self->eoconn; 318 $self->eoconn;
304 319
305 die if $@ && !ref $@; 320 die if $@ && !ref $@;
306 321
307 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 322 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
308 323
309 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]");
310 $fh->timeout($::PER_TIMEOUT); 324 $fh->timeout($::PER_TIMEOUT);
311 } 325 }
312} 326}
313 327
314# uri => path mapping 328# uri => path mapping
315sub map_uri { 329sub map_uri {
316 my $self = shift; 330 my $self = shift;
317 my $host = $self->{h}{host} || "default"; 331 my $host = $self->{server_name};
318 my $uri = $self->{uri}; 332 my $uri = $self->{uri};
319 333
320 # some massaging, also makes it more secure 334 # some massaging, also makes it more secure
321 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 335 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
322 $uri =~ s%//+%/%g; 336 $uri =~ s%//+%/%g;
… …
332 $self->{path} = "$::DOCROOT/$host$uri"; 346 $self->{path} = "$::DOCROOT/$host$uri";
333 347
334 $self->access_check; 348 $self->access_check;
335} 349}
336 350
337sub server_address {
338 my $self = shift;
339 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
340 or $self->err(500, "unable to get socket name");
341 ((inet_ntoa $iaddr), $port);
342}
343
344sub server_host {
345 my $self = shift;
346 if (exists $self->{h}{host}) {
347 return $self->{h}{host};
348 } else {
349 return (($self->server_address)[0]);
350 }
351}
352
353sub server_hostport {
354 my $self = shift;
355 my ($host, $port);
356 if (exists $self->{h}{host}) {
357 ($host, $port) = ($self->{h}{host}, $self->{server_port});
358 } else {
359 ($host, $port) = $self->server_address;
360 }
361 $port = $port == 80 ? "" : ":$port";
362 $host.$port;
363}
364
365sub _cgi { 351sub _cgi {
366 my $self = shift; 352 my $self = shift;
367 my $path = shift; 353 my $path = shift;
368 my $fh; 354 my $fh;
369 355
370 # no two-way xxx supported 356 # no two-way xxx supported
371 if (0 == fork) { 357 if (0 == fork) {
372 open STDOUT, ">&".fileno($self->{fh}); 358 open STDOUT, ">&".fileno($self->{fh});
373 if (chdir $::DOCROOT) { 359 if (chdir $::DOCROOT) {
374 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 360 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
375 $ENV{HTTP_HOST} = $self->server_host; 361 $ENV{HTTP_HOST} = $self->{server_name};
376 $ENV{HTTP_PORT} = $self->{server_host}; 362 $ENV{HTTP_PORT} = $self->{server_port};
377 $ENV{SCRIPT_NAME} = $self->{name}; 363 $ENV{SCRIPT_NAME} = $self->{name};
378 exec $path; 364 exec $path;
379 } 365 }
380 Coro::State::_exit(0); 366 Coro::State::_exit(0);
381 } else { 367 } else {
368 die;
382 } 369 }
370}
371
372sub server_hostport {
373 $_[0]{server_port} == 80
374 ? $_[0]{server_name}
375 : "$_[0]{server_name}:$_[0]{server_port}";
383} 376}
384 377
385sub respond { 378sub respond {
386 my $self = shift; 379 my $self = shift;
387 my $path = $self->{path}; 380 my $path = $self->{path};
… …
397 390
398 if (-d _ && -r _) { 391 if (-d _ && -r _) {
399 # directory 392 # directory
400 if ($path !~ /\/$/) { 393 if ($path !~ /\/$/) {
401 # create a redirect to get the trailing "/" 394 # create a redirect to get the trailing "/"
402 my $host = $self->server_hostport; 395 # we don't try to avoid the :80
403 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 396 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
404 } else { 397 } else {
405 $ims < $self->{stat}[9] 398 $ims < $self->{stat}[9]
406 or $self->err(304, "not modified"); 399 or $self->err(304, "not modified");
407 400
408 if (-r "$path/index.html") { 401 if (-r "$path/index.html") {
… …
460 $self->err(416, "not satisfiable", $hdr, ""); 453 $self->err(416, "not satisfiable", $hdr, "");
461 454
462satisfiable: 455satisfiable:
463 # check for segmented downloads 456 # check for segmented downloads
464 if ($l && $::NO_SEGMENTED) { 457 if ($l && $::NO_SEGMENTED) {
458 my $delay = 180;
465 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 459 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
466 $self->err(400, "segmented downloads are not allowed", 460 if ($delay <= 0) {
467 { "Content-Type" => "text/html", Connection => "close" }, <<EOF); 461 $self->err_segmented_download;
468<html> 462 } else {
469<head> 463 Coro::Event::do_timer(after => 3); $delay -= 3;
470<title>Segmented downloads are not allowed</title> 464 }
471</head>
472<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
473
474<p>Segmented downloads are not allowed on this server. Please refer to the
475<a href="http://www.goof.com/pcg/marc/animefaq.html#segmented_downloads">FAQ</a>.</p>
476
477</body></html>
478EOF
479EOF
480 } 465 }
481 } 466 }
482 467
483 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 468 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
484 @code = (206, "partial content"); 469 @code = (206, "partial content");
… …
494 $hdr->{"Content-Length"} = $length; 479 $hdr->{"Content-Length"} = $length;
495 480
496 $self->response(@code, $hdr, ""); 481 $self->response(@code, $hdr, "");
497 482
498 if ($self->{method} eq "GET") { 483 if ($self->{method} eq "GET") {
484 $self->{time} = $::NOW;
485
486 my $transfer = $::transfers->guard;
487 $self->{fh}->writable or return;
488
489 push @::wait_time, $::NOW - $self->{time};
490 shift @::wait_time if @wait_time > 25;
491 $self->{time} = $::NOW;
492
499 my ($fh, $buf, $r); 493 my ($fh, $buf, $r);
500 my $current = $Coro::current; 494 my $current = $Coro::current;
501 open $fh, "<", $self->{path} 495 open $fh, "<", $self->{path}
502 or die "$self->{path}: late open failure ($!)"; 496 or die "$self->{path}: late open failure ($!)";
503 497
… …
512 while ($h > 0) { 506 while ($h > 0) {
513 if (0) { 507 if (0) {
514 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 508 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
515 or last; 509 or last;
516 } else { 510 } else {
511 undef $buf;
512 $aio_requests->down;
517 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), 513 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
518 $buf, 0, sub { 514 $buf, 0, sub {
519 $r = $_[0]; 515 $r = $_[0];
520 $current->ready; 516 $current->ready;
521 }); 517 });
522 &Coro::schedule; 518 &Coro::schedule;
519 $aio_requests->up;
523 last unless $r; 520 last unless $r;
524 } 521 }
525 my $w = $self->{fh}->syswrite($buf) 522 my $w = $self->{fh}->syswrite($buf)
526 or last; 523 or last;
527 $::written += $w; 524 $::written += $w;
528 $self->{written} += $w; 525 $self->{written} += $w;
529 $l += $r; 526 $l += $r;
530 } 527 }
531 }
532 528
533 close $fh; 529 close $fh;
530 }
534} 531}
535 532
5361; 5331;

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