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/cvs/cvsroot/Coro/myhttpd/httpd.pl
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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.25 by root, Sun Aug 19 22:14:26 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
13$SIG{PIPE} = 'IGNORE'; 17$SIG{PIPE} = 'IGNORE';
14 18
19our $accesslog;
20
21if ($ACCESS_LOG) {
22 use IO::Handle;
23 open $accesslog, ">>$ACCESS_LOG"
24 or die "$ACCESS_LOG: $!";
25 $accesslog->autoflush(1);
26}
27
15sub slog { 28sub slog {
16 my $level = shift; 29 my $level = shift;
17 my $format = shift; 30 my $format = shift;
18 printf "---: $format\n", @_; 31 printf "---: $format\n", @_;
19} 32}
20 33
21my $connections = new Coro::Semaphore $MAX_CONNECTS; 34our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
35our $transfers = new Coro::Semaphore $MAX_TRANSFER || 50;
22 36
23my @newcons; 37my @newcons;
24my @pool; 38my @pool;
25 39
26# one "execution thread" 40# one "execution thread"
… …
48 Listen => 50, 62 Listen => 50,
49 or die "unable to start server"; 63 or die "unable to start server";
50 64
51push @listen_sockets, $http_port; 65push @listen_sockets, $http_port;
52 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
53# the "main thread" 75# the "main thread"
54async { 76async {
55 slog 1, "accepting connections"; 77 slog 1, "accepting connections";
56 while () { 78 while () {
57 $connections->down; 79 $connections->down;
58 push @newcons, [$http_port->accept]; 80 push @newcons, [$http_port->accept];
59 #slog 3, "accepted @$connections ".scalar(@pool); 81 #slog 3, "accepted @$connections ".scalar(@pool);
60 $::NOW = time;
61 if (@pool) { 82 if (@pool) {
62 (pop @pool)->ready; 83 (pop @pool)->ready;
63 } else { 84 } else {
64 async \&handler; 85 async \&handler;
65 } 86 }
… …
74use Convert::Scalar 'weaken'; 95use Convert::Scalar 'weaken';
75use Linux::AIO; 96use Linux::AIO;
76 97
77Linux::AIO::min_parallel $::AIO_PARALLEL; 98Linux::AIO::min_parallel $::AIO_PARALLEL;
78 99
100my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
101
79Event->io(fd => Linux::AIO::poll_fileno, 102Event->io(fd => Linux::AIO::poll_fileno,
80 poll => 'r', async => 1, 103 poll => 'r', async => 1,
81 cb => \&Linux::AIO::poll_cb); 104 cb => \&Linux::AIO::poll_cb);
82 105
83our %conn; # $conn{ip}{fh} => connobj 106our %conn; # $conn{ip}{self} => connobj
107our %uri; # $uri{ip}{uri}{self}
84our %blocked; 108our %blocked;
85our %mimetype; 109our %mimetype;
86 110
87sub read_mimetypes { 111sub read_mimetypes {
88 local *M; 112 local *M;
… …
127 delete $conn{$self->{remote_addr}}{$self*1}; 151 delete $conn{$self->{remote_addr}}{$self*1};
128} 152}
129 153
130# end of connection 154# end of connection
131sub eoconn { 155sub eoconn {
156 my $self = shift;
132 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 157 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
133} 158}
134 159
135sub slog { 160sub slog {
136 my $self = shift; 161 my $self = shift;
137 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 162 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
138} 163}
139 164
140sub response { 165sub response {
141 my ($self, $code, $msg, $hdr, $content) = @_; 166 my ($self, $code, $msg, $hdr, $content) = @_;
142 my $res = "HTTP/1.1 $code $msg\015\012"; 167 my $res = "HTTP/1.1 $code $msg\015\012";
143 168
144 #$res .= "Connection: close\015\012"; 169 $self->{h}{connection} ||= $hdr->{Connection};
145 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 170
171 $res .= "Date: $HTTP_NOW\015\012";
146 172
147 while (my ($h, $v) = each %$hdr) { 173 while (my ($h, $v) = each %$hdr) {
148 $res .= "$h: $v\015\012" 174 $res .= "$h: $v\015\012"
149 } 175 }
150 $res .= "\015\012"; 176 $res .= "\015\012";
151 177
152 $res .= $content if defined $content and $self->{method} ne "HEAD"; 178 $res .= $content if defined $content and $self->{method} ne "HEAD";
153 179
154 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; 180 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
181
182 print $accesslog $log if $accesslog;
183 print STDERR $log;
155 184
156 $self->{written} += 185 $self->{written} +=
157 print {$self->{fh}} $res; 186 print {$self->{fh}} $res;
158} 187}
159 188
… …
171 $self->response($code, $msg, $hdr, $content); 200 $self->response($code, $msg, $hdr, $content);
172 201
173 die bless {}, err::; 202 die bless {}, err::;
174} 203}
175 204
176sub err_blocked {
177 my $self = shift;
178 my $ip = $self->{remote_addr};
179 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
180
181 Coro::Event::do_timer(after => 20*rand);
182
183 $self->err(401, "too many connections",
184 {
185 "Content-Type" => "text/html",
186 "Retry-After" => $::BLOCKTIME,
187 "Warning" => "Please do NOT retry, you have been blocked",
188 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
189 },
190 <<EOF);
191<html><p>
192You have been blocked because you opened too many connections. You
193may retry at</p>
194
195 <p><blockquote>$time.</blockquote></p>
196
197<p>Until then, each new access will renew the block. You might want to have a
198look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
199</html>
200EOF
201}
202
203sub handle { 205sub handle {
204 my $self = shift; 206 my $self = shift;
205 my $fh = $self->{fh}; 207 my $fh = $self->{fh};
208
209 my $host;
206 210
207 $fh->timeout($::REQ_TIMEOUT); 211 $fh->timeout($::REQ_TIMEOUT);
208 while() { 212 while() {
209 $self->{reqs}++; 213 $self->{reqs}++;
210 214
… …
230 234
231 delete $blocked{$ip}; 235 delete $blocked{$ip};
232 } 236 }
233 237
234 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) {
235 $self->slog(2, "blocked ip $ip"); 242 $self->slog(2, "blocked ip $ip");
236 $self->err_blocked; 243 $self->err_blocked;
244 } else {
245 Coro::Event::do_timer(after => 3);
246 $delay -= 3;
247 }
248 }
237 } 249 }
238 250
239 $req =~ /^(?:\015\012)? 251 $req =~ /^(?:\015\012)?
240 (GET|HEAD) \040+ 252 (GET|HEAD) \040+
241 ([^\040]+) \040+ 253 ([^\040]+) \040+
… …
267 279
268 $self->{h}{$h} = substr $v, 1 280 $self->{h}{$h} = substr $v, 1
269 while ($h, $v) = each %hdr; 281 while ($h, $v) = each %hdr;
270 } 282 }
271 283
284 # find out server name and port
285 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
286 $host = $1;
287 } else {
288 $host = $self->{h}{host};
289 }
290
291 if (defined $host) {
272 $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 }
273 310
274 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 311 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
275 312
276 eval { 313 eval {
277 $self->map_uri; 314 $self->map_uri;
278 $self->respond; 315 $self->respond;
279 }; 316 };
280 317
318 $self->eoconn;
319
281 die if $@ && !ref $@; 320 die if $@ && !ref $@;
282 321
283 $self->eoconn;
284
285 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 322 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
286 323
287 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]");
288 $fh->timeout($::PER_TIMEOUT); 324 $fh->timeout($::PER_TIMEOUT);
289 } 325 }
290} 326}
291 327
292# uri => path mapping 328# uri => path mapping
293sub map_uri { 329sub map_uri {
294 my $self = shift; 330 my $self = shift;
295 my $host = $self->{h}{host} || "default"; 331 my $host = $self->{server_name};
296 my $uri = $self->{uri}; 332 my $uri = $self->{uri};
297 333
298 # some massaging, also makes it more secure 334 # some massaging, also makes it more secure
299 $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;
300 $uri =~ s%//+%/%g; 336 $uri =~ s%//+%/%g;
… …
310 $self->{path} = "$::DOCROOT/$host$uri"; 346 $self->{path} = "$::DOCROOT/$host$uri";
311 347
312 $self->access_check; 348 $self->access_check;
313} 349}
314 350
315sub server_address {
316 my $self = shift;
317 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
318 or $self->err(500, "unable to get socket name");
319 ((inet_ntoa $iaddr), $port);
320}
321
322sub server_host {
323 my $self = shift;
324 if (exists $self->{h}{host}) {
325 return $self->{h}{host};
326 } else {
327 return (($self->server_address)[0]);
328 }
329}
330
331sub server_hostport {
332 my $self = shift;
333 my ($host, $port);
334 if (exists $self->{h}{host}) {
335 ($host, $port) = ($self->{h}{host}, $self->{server_port});
336 } else {
337 ($host, $port) = $self->server_address;
338 }
339 $port = $port == 80 ? "" : ":$port";
340 $host.$port;
341}
342
343sub _cgi { 351sub _cgi {
344 my $self = shift; 352 my $self = shift;
345 my $path = shift; 353 my $path = shift;
346 my $fh; 354 my $fh;
347 355
348 # no two-way xxx supported 356 # no two-way xxx supported
349 if (0 == fork) { 357 if (0 == fork) {
350 open STDOUT, ">&".fileno($self->{fh}); 358 open STDOUT, ">&".fileno($self->{fh});
351 if (chdir $::DOCROOT) { 359 if (chdir $::DOCROOT) {
352 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 360 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
353 $ENV{HTTP_HOST} = $self->server_host; 361 $ENV{HTTP_HOST} = $self->{server_name};
354 $ENV{HTTP_PORT} = $self->{server_host}; 362 $ENV{HTTP_PORT} = $self->{server_port};
355 $ENV{SCRIPT_NAME} = $self->{name}; 363 $ENV{SCRIPT_NAME} = $self->{name};
356 exec $path; 364 exec $path;
357 } 365 }
358 Coro::State::_exit(0); 366 Coro::State::_exit(0);
359 } else { 367 } else {
368 die;
360 } 369 }
370}
371
372sub server_hostport {
373 $_[0]{server_port} == 80
374 ? $_[0]{server_name}
375 : "$_[0]{server_name}:$_[0]{server_port}";
361} 376}
362 377
363sub respond { 378sub respond {
364 my $self = shift; 379 my $self = shift;
365 my $path = $self->{path}; 380 my $path = $self->{path};
… …
375 390
376 if (-d _ && -r _) { 391 if (-d _ && -r _) {
377 # directory 392 # directory
378 if ($path !~ /\/$/) { 393 if ($path !~ /\/$/) {
379 # create a redirect to get the trailing "/" 394 # create a redirect to get the trailing "/"
380 my $host = $self->server_hostport; 395 # we don't try to avoid the :80
381 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 396 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
382 } else { 397 } else {
383 $ims < $self->{stat}[9] 398 $ims < $self->{stat}[9]
384 or $self->err(304, "not modified"); 399 or $self->err(304, "not modified");
385 400
386 if (-r "$path/index.html") { 401 if (-r "$path/index.html") {
… …
428 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 443 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
429 } else { 444 } else {
430 ($l, $h) = (0, $length - 1); 445 ($l, $h) = (0, $length - 1);
431 goto ignore; 446 goto ignore;
432 } 447 }
433 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 448 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
434 } 449 }
435 $hdr->{"Content-Range"} = "bytes */$length"; 450 $hdr->{"Content-Range"} = "bytes */$length";
436 $hdr->{"Content-Length"} = $length; 451 $hdr->{"Content-Length"} = $length;
437 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); 452 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
438 $self->err(416, "not satisfiable", $hdr, ""); 453 $self->err(416, "not satisfiable", $hdr, "");
439 454
440satisfiable: 455satisfiable:
441 # check for segmented downloads 456 # check for segmented downloads
442 if ($l && $::NO_SEGMENTED) { 457 if ($l && $::NO_SEGMENTED) {
458 my $delay = 180;
443 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 459 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
460 if ($delay <= 0) {
461 $self->err_segmented_download;
462 } else {
444 Coro::Event::do_timer(after => 15); 463 Coro::Event::do_timer(after => 3); $delay -= 3;
445 464 }
446 $self->err(400, "segmented downloads are not allowed");
447 } 465 }
448 } 466 }
449 467
450 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 468 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
451 @code = (206, "partial content"); 469 @code = (206, "partial content");
… …
461 $hdr->{"Content-Length"} = $length; 479 $hdr->{"Content-Length"} = $length;
462 480
463 $self->response(@code, $hdr, ""); 481 $self->response(@code, $hdr, "");
464 482
465 if ($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} = $::NOW;
492
466 my ($fh, $buf, $r); 493 my ($fh, $buf, $r);
467 my $current = $Coro::current; 494 my $current = $Coro::current;
468 open $fh, "<", $self->{path} 495 open $fh, "<", $self->{path}
469 or die "$self->{path}: late open failure ($!)"; 496 or die "$self->{path}: late open failure ($!)";
470 497
… …
479 while ($h > 0) { 506 while ($h > 0) {
480 if (0) { 507 if (0) {
481 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 508 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
482 or last; 509 or last;
483 } else { 510 } else {
511 undef $buf;
512 $aio_requests->down;
484 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), 513 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
485 $buf, 0, sub { 514 $buf, 0, sub {
486 $r = $_[0]; 515 $r = $_[0];
487 $current->ready; 516 $current->ready;
488 }); 517 });
489 &Coro::schedule; 518 &Coro::schedule;
519 $aio_requests->up;
490 last unless $r; 520 last unless $r;
491 } 521 }
492 my $w = $self->{fh}->syswrite($buf) 522 my $w = $self->{fh}->syswrite($buf)
493 or last; 523 or last;
494 $::written += $w; 524 $::written += $w;
495 $self->{written} += $w; 525 $self->{written} += $w;
496 $l += $r; 526 $l += $r;
497 } 527 }
498 }
499 528
500 close $fh; 529 close $fh;
530 }
501} 531}
502 532
5031; 5331;

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