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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.30 by root, Sun Aug 26 14:55:46 2001 UTC vs.
Revision 1.61 by root, Thu Jan 3 01:20:17 2002 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
… …
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
15our $accesslog; 19our $accesslog;
20our $errorlog;
21
22our $NOW;
23our $HTTP_NOW;
24
25Event->timer(interval => 1, hard => 1, cb => sub {
26 $NOW = time;
27 $HTTP_NOW = time2str $NOW;
28})->now;
29
30if ($ERROR_LOG) {
31 use IO::Handle;
32 open $errorlog, ">>$ERROR_LOG"
33 or die "$ERROR_LOG: $!";
34 $errorlog->autoflush(1);
35}
16 36
17if ($ACCESS_LOG) { 37if ($ACCESS_LOG) {
18 use IO::Handle; 38 use IO::Handle;
19 open $accesslog, ">>$ACCESS_LOG" 39 open $accesslog, ">>$ACCESS_LOG"
20 or die "$ACCESS_LOG: $!"; 40 or die "$ACCESS_LOG: $!";
… …
22} 42}
23 43
24sub slog { 44sub slog {
25 my $level = shift; 45 my $level = shift;
26 my $format = shift; 46 my $format = shift;
47 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
27 printf "---: $format\n", @_; 48 printf "$NOW: $format\n", @_;
49 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
28} 50}
29 51
30my $connections = new Coro::Semaphore $MAX_CONNECTS; 52our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
53our $httpevent = new Coro::Signal;
54
55our $queue_file = new transferqueue slots => $MAX_TRANSFERS, maxsize => 256*1024*1024;
56our $queue_index = new transferqueue slots => 10;
31 57
32my @newcons; 58my @newcons;
33my @pool; 59my @pool;
34 60
35# one "execution thread" 61# one "execution thread"
36sub handler { 62sub handler {
37 while () { 63 while () {
38 my $new = pop @newcons;
39 if ($new) { 64 if (@newcons) {
40 eval { 65 eval {
41 conn->new(@$new)->handle; 66 conn->new(@{pop @newcons})->handle;
42 }; 67 };
43 slog 1, "$@" if $@ && !ref $@; 68 slog 1, "$@" if $@ && !ref $@;
69
70 $httpevent->broadcast; # only for testing, but doesn't matter much
71
44 $connections->up; 72 $connections->up;
45 } else { 73 } else {
46 last if @pool >= $MAX_POOL; 74 last if @pool >= $MAX_POOL;
47 push @pool, $Coro::current; 75 push @pool, $Coro::current;
48 schedule; 76 schedule;
49 } 77 }
50 } 78 }
79}
80
81sub listen_on {
82 my $listen = $_[0];
83
84 push @listen_sockets, $listen;
85
86 # the "main thread"
87 async {
88 slog 1, "accepting connections";
89 while () {
90 $connections->down;
91 push @newcons, [$listen->accept];
92 #slog 3, "accepted @$connections ".scalar(@pool);
93 if (@pool) {
94 (pop @pool)->ready;
95 } else {
96 async \&handler;
97 }
98
99 }
100 };
51} 101}
52 102
53my $http_port = new Coro::Socket 103my $http_port = new Coro::Socket
54 LocalAddr => $SERVER_HOST, 104 LocalAddr => $SERVER_HOST,
55 LocalPort => $SERVER_PORT, 105 LocalPort => $SERVER_PORT,
56 ReuseAddr => 1, 106 ReuseAddr => 1,
57 Listen => 50, 107 Listen => 50,
58 or die "unable to start server"; 108 or die "unable to start server";
59 109
60push @listen_sockets, $http_port; 110listen_on $http_port;
61 111
62# the "main thread" 112if ($SERVER_PORT2) {
63async { 113 my $http_port = new Coro::Socket
64 slog 1, "accepting connections"; 114 LocalAddr => $SERVER_HOST,
65 while () { 115 LocalPort => $SERVER_PORT2,
66 $connections->down; 116 ReuseAddr => 1,
67 push @newcons, [$http_port->accept]; 117 Listen => 50,
68 #slog 3, "accepted @$connections ".scalar(@pool); 118 or die "unable to start server";
69 $::NOW = time;
70 if (@pool) {
71 (pop @pool)->ready;
72 } else {
73 async \&handler;
74 }
75 119
76 } 120 listen_on $http_port;
77}; 121}
78 122
79package conn; 123package conn;
80 124
81use Socket; 125use Socket;
82use HTTP::Date; 126use HTTP::Date;
83use Convert::Scalar 'weaken'; 127use Convert::Scalar 'weaken';
84use Linux::AIO; 128use Linux::AIO;
85 129
86Linux::AIO::min_parallel $::AIO_PARALLEL; 130Linux::AIO::min_parallel $::AIO_PARALLEL;
87
88my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
89 131
90Event->io(fd => Linux::AIO::poll_fileno, 132Event->io(fd => Linux::AIO::poll_fileno,
91 poll => 'r', async => 1, 133 poll => 'r', async => 1,
92 cb => \&Linux::AIO::poll_cb); 134 cb => \&Linux::AIO::poll_cb);
93 135
… …
111 153
112read_mimetypes; 154read_mimetypes;
113 155
114sub new { 156sub new {
115 my $class = shift; 157 my $class = shift;
158 my $fh = shift;
116 my $peername = shift; 159 my $peername = shift;
117 my $fh = shift;
118 my $self = bless { fh => $fh }, $class; 160 my $self = bless { fh => $fh }, $class;
119 my (undef, $iaddr) = unpack_sockaddr_in $peername 161 my (undef, $iaddr) = unpack_sockaddr_in $peername
120 or $self->err(500, "unable to decode peername"); 162 or $self->err(500, "unable to decode peername");
121 163
164 $self->{remote_addr} =
122 $self->{remote_addr} = inet_ntoa $iaddr; 165 $self->{remote_id} = inet_ntoa $iaddr;
166
123 $self->{time} = $::NOW; 167 $self->{time} = $::NOW;
124 168
125 # enter ourselves into various lists 169 weaken ($Coro::current->{conn} = $self);
126 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
127 170
128 $::conns++; 171 $::conns++;
172 $::maxconns = $::conns if $::conns > $::maxconns;
129 173
130 $self; 174 $self;
131} 175}
132 176
133sub DESTROY { 177sub DESTROY {
134 my $self = shift; 178 #my $self = shift;
135
136 $::conns--; 179 $::conns--;
137
138 $self->eoconn;
139 delete $conn{$self->{remote_addr}}{$self*1};
140}
141
142# end of connection
143sub eoconn {
144 my $self = shift;
145 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
146} 180}
147 181
148sub slog { 182sub slog {
149 my $self = shift; 183 my $self = shift;
150 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); 184 main::slog($_[0], "$self->{remote_id}> $_[1]");
151} 185}
152 186
153sub response { 187sub response {
154 my ($self, $code, $msg, $hdr, $content) = @_; 188 my ($self, $code, $msg, $hdr, $content) = @_;
155 my $res = "HTTP/1.1 $code $msg\015\012"; 189 my $res = "HTTP/1.1 $code $msg\015\012";
156 190
157 $self->{h}{connection} ||= $hdr->{Connection}; 191 if (exists $hdr->{Connection}) {
192 if ($hdr->{Connection} =~ /close/) {
193 $self->{h}{connection} = "close"
194 }
195 } else {
196 if ($self->{version} < 1.1) {
197 if ($self->{h}{connection} =~ /keep-alive/i) {
198 $hdr->{Connection} = "Keep-Alive";
199 } else {
200 $self->{h}{connection} = "close"
201 }
202 }
203 }
158 204
159 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 205 $res .= "Date: $HTTP_NOW\015\012";
160 206
161 while (my ($h, $v) = each %$hdr) { 207 while (my ($h, $v) = each %$hdr) {
162 $res .= "$h: $v\015\012" 208 $res .= "$h: $v\015\012"
163 } 209 }
164 $res .= "\015\012"; 210 $res .= "\015\012";
165 211
166 $res .= $content if defined $content and $self->{method} ne "HEAD"; 212 $res .= $content if defined $content and $self->{method} ne "HEAD";
167 213
168 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; 214 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $NOW).
215 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.
216 " \"$self->{h}{referer}\"\n";
169 217
170 print $accesslog $log if $accesslog; 218 print $accesslog $log if $accesslog;
171 print STDERR $log; 219 print STDERR $log;
172 220
173 $self->{written} += 221 $self->{written} +=
… …
177sub err { 225sub err {
178 my $self = shift; 226 my $self = shift;
179 my ($code, $msg, $hdr, $content) = @_; 227 my ($code, $msg, $hdr, $content) = @_;
180 228
181 unless (defined $content) { 229 unless (defined $content) {
182 $content = "$code $msg"; 230 $content = "$code $msg\n";
183 $hdr->{"Content-Type"} = "text/plain"; 231 $hdr->{"Content-Type"} = "text/plain";
184 $hdr->{"Content-Length"} = length $content; 232 $hdr->{"Content-Length"} = length $content;
185 } 233 }
186 $hdr->{"Connection"} = "close"; 234 $hdr->{"Connection"} = "close";
187 235
… …
212 } 260 }
213 261
214 $self->{h} = {}; 262 $self->{h} = {};
215 263
216 $fh->timeout($::RES_TIMEOUT); 264 $fh->timeout($::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 $self->slog(2, "blocked ip $ip");
228 $self->err_blocked;
229 }
230 265
231 $req =~ /^(?:\015\012)? 266 $req =~ /^(?:\015\012)?
232 (GET|HEAD) \040+ 267 (GET|HEAD) \040+
233 ([^\040]+) \040+ 268 ([^\040]+) \040+
234 HTTP\/([0-9]+\.[0-9]+) 269 HTTP\/([0-9]+\.[0-9]+)
… …
259 294
260 $self->{h}{$h} = substr $v, 1 295 $self->{h}{$h} = substr $v, 1
261 while ($h, $v) = each %hdr; 296 while ($h, $v) = each %hdr;
262 } 297 }
263 298
299 # remote id should be unique per user
300 my $id = $self->{remote_addr};
301
302 if (exists $self->{h}{"client-ip"}) {
303 $id .= "[".$self->{h}{"client-ip"}."]";
304 } elsif (exists $self->{h}{"x-forwarded-for"}) {
305 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
306 }
307
308 $self->{remote_id} = $id;
309
310 weaken (local $conn{$id}{$self*1} = $self);
311
312 if ($blocked{$id}) {
313 $self->err_blocked
314 if $blocked{$id}[0] > $::NOW;
315
316 delete $blocked{$id};
317 }
318
264 # find out server name and port 319 # find out server name and port
265 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { 320 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
266 $host = $1; 321 $host = $1;
267 } else { 322 } else {
268 $host = $self->{h}{host}; 323 $host = $self->{h}{host};
… …
270 325
271 if (defined $host) { 326 if (defined $host) {
272 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; 327 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
273 } else { 328 } else {
274 ($self->{server_port}, $host) 329 ($self->{server_port}, $host)
275 = unpack_sockaddr_in $self->{fh}->getsockname 330 = unpack_sockaddr_in $self->{fh}->sockname
276 or $self->err(500, "unable to get socket name"); 331 or $self->err(500, "unable to get socket name");
277 $host = inet_ntoa $host; 332 $host = inet_ntoa $host;
278 } 333 }
279 334
280 $self->{server_name} = $host; 335 $self->{server_name} = $host;
281 336
282 # remote id should be unique per user
283 $self->{remote_id} = $self->{remote_addr};
284
285 if (exists $self->{h}{"client-ip"}) {
286 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
287 } elsif (exists $self->{h}{"x-forwarded-for"}) {
288 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
289 }
290
291 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 337 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
292 338
293 eval { 339 eval {
294 $self->map_uri; 340 $self->map_uri;
295 $self->respond; 341 $self->respond;
296 }; 342 };
297 343
298 $self->eoconn;
299
300 die if $@ && !ref $@; 344 die if $@ && !ref $@;
301 345
302 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; 346 last if $self->{h}{connection} =~ /close/i;
347
348 $httpevent->broadcast;
303 349
304 $fh->timeout($::PER_TIMEOUT); 350 $fh->timeout($::PER_TIMEOUT);
305 } 351 }
352}
353
354sub block {
355 my $self = shift;
356
357 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
358 $self->slog(2, "blocked ip $self->{remote_id}");
359 $self->err_blocked;
306} 360}
307 361
308# uri => path mapping 362# uri => path mapping
309sub map_uri { 363sub map_uri {
310 my $self = shift; 364 my $self = shift;
… …
357 411
358sub respond { 412sub respond {
359 my $self = shift; 413 my $self = shift;
360 my $path = $self->{path}; 414 my $path = $self->{path};
361 415
362 stat $path 416 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
363 or $self->err(404, "not found"); 417 if ($::internal{$1}) {
364 418 $::internal{$1}->($self);
365 $self->{stat} = [stat _];
366
367 # idiotic netscape sends idiotic headers AGAIN
368 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
369 ? str2time $1 : 0;
370
371 if (-d _ && -r _) {
372 # directory
373 if ($path !~ /\/$/) {
374 # create a redirect to get the trailing "/"
375 # we don't try to avoid the :80
376 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
377 } else { 419 } else {
378 $ims < $self->{stat}[9] 420 $self->err(404, "not found");
421 }
422 } else {
423
424 stat $path
379 or $self->err(304, "not modified"); 425 or $self->err(404, "not found");
380 426
381 if (-r "$path/index.html") { 427 $self->{stat} = [stat _];
382 $self->{path} .= "/index.html"; 428
383 $self->handle_file; 429 # idiotic netscape sends idiotic headers AGAIN
430 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
431 ? str2time $1 : 0;
432
433 if (-d _ && -r _) {
434 # directory
435 if ($path !~ /\/$/) {
436 # create a redirect to get the trailing "/"
437 # we don't try to avoid the :80
438 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
384 } else { 439 } else {
440 $ims < $self->{stat}[9]
441 or $self->err(304, "not modified");
442
443 if (-r "$path/index.html") {
444 # replace directory "size" by index.html filesize
445 $self->{stat} = [stat ($self->{path} .= "/index.html")];
446 $self->handle_file($queue_index);
447 } else {
385 $self->handle_dir; 448 $self->handle_dir;
386 } 449 }
387 } 450 }
388 } elsif (-f _ && -r _) { 451 } elsif (-f _ && -r _) {
389 -x _ and $self->err(403, "forbidden"); 452 -x _ and $self->err(403, "forbidden");
453
454 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
455 my $timeout = $::NOW + 10;
456 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
457 if ($timeout < $::NOW) {
458 $self->block($::BLOCKTIME, "too many connections");
459 } else {
460 $httpevent->wait;
461 }
462 }
463 }
464
390 $self->handle_file; 465 $self->handle_file($queue_file);
391 } else { 466 } else {
392 $self->err(404, "not found"); 467 $self->err(404, "not found");
468 }
393 } 469 }
394} 470}
395 471
396sub handle_dir { 472sub handle_dir {
397 my $self = shift; 473 my $self = shift;
… …
399 475
400 $self->response(200, "ok", 476 $self->response(200, "ok",
401 { 477 {
402 "Content-Type" => "text/html", 478 "Content-Type" => "text/html",
403 "Content-Length" => length $idx, 479 "Content-Length" => length $idx,
480 "Last-Modified" => time2str ($self->{stat}[9]),
404 }, 481 },
405 $idx); 482 $idx);
406} 483}
407 484
408sub handle_file { 485sub handle_file {
409 my $self = shift; 486 my ($self, $queue) = @_;
410 my $length = -s _; 487 my $length = $self->{stat}[7];
411 my $hdr = { 488 my $hdr = {
412 "Last-Modified" => time2str ((stat _)[9]), 489 "Last-Modified" => time2str ((stat _)[9]),
413 }; 490 };
414 491
415 my @code = (200, "ok"); 492 my @code = (200, "ok");
… …
427 } 504 }
428 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 505 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
429 } 506 }
430 $hdr->{"Content-Range"} = "bytes */$length"; 507 $hdr->{"Content-Range"} = "bytes */$length";
431 $hdr->{"Content-Length"} = $length; 508 $hdr->{"Content-Length"} = $length;
432 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
433 $self->err(416, "not satisfiable", $hdr, ""); 509 $self->err(416, "not satisfiable", $hdr, "");
434 510
435satisfiable: 511satisfiable:
436 # check for segmented downloads 512 # check for segmented downloads
437 if ($l && $::NO_SEGMENTED) { 513 if ($l && $::NO_SEGMENTED) {
438 my $delay = 180; 514 my $timeout = $::NOW + 15;
439 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 515 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
440 if ($delay <= 0) { 516 if ($timeout <= $::NOW) {
517 $self->block($::BLOCKTIME, "segmented downloads are forbidden");
441 $self->err_segmented_download; 518 #$self->err_segmented_download;
442 } else { 519 } else {
443 Coro::Event::do_timer(after => 3); $delay -= 3; 520 $httpevent->wait;
444 } 521 }
445 } 522 }
446 } 523 }
447 524
448 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 525 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
… …
459 $hdr->{"Content-Length"} = $length; 536 $hdr->{"Content-Length"} = $length;
460 537
461 $self->response(@code, $hdr, ""); 538 $self->response(@code, $hdr, "");
462 539
463 if ($self->{method} eq "GET") { 540 if ($self->{method} eq "GET") {
541 $self->{time} = $::NOW;
542
543 my $current = $Coro::current;
544
464 my ($fh, $buf, $r); 545 my ($fh, $buf, $r);
465 my $current = $Coro::current; 546
466 open $fh, "<", $self->{path} 547 open $fh, "<", $self->{path}
467 or die "$self->{path}: late open failure ($!)"; 548 or die "$self->{path}: late open failure ($!)";
468 549
469 $h -= $l - 1; 550 $h -= $l - 1;
470 551
471 if (0) { 552 if (0) { # !AIO
472 if ($l) { 553 if ($l) {
473 sysseek $fh, $l, 0; 554 sysseek $fh, $l, 0;
474 } 555 }
475 } 556 }
557
558 my $transfer = $queue->start_transfer($h);
559 my $locked;
560 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
476 561
477 while ($h > 0) { 562 while ($h > 0) {
563 unless ($locked) {
564 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
565 $bufsize = $::BUFSIZE;
566 $self->{time} = $::NOW;
567 }
568 }
569
570 if ($blocked{$self->{remote_id}}) {
571 $self->{h}{connection} = "close";
572 die bless {}, err::;
573 }
574
478 if (0) { 575 if (0) { # !AIO
479 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 576 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
480 or last; 577 or last;
481 } else { 578 } else {
482 undef $buf; 579 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h),
483 $aio_requests->down;
484 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
485 $buf, 0, sub { 580 $buf, 0, sub {
486 $r = $_[0]; 581 $r = $_[0];
487 $current->ready; 582 Coro::ready($current);
488 }); 583 });
489 &Coro::schedule; 584 &Coro::schedule;
490 $aio_requests->up;
491 last unless $r; 585 last unless $r;
492 } 586 }
493 my $w = $self->{fh}->syswrite($buf) 587 my $w = syswrite $self->{fh}, $buf
494 or last; 588 or last;
495 $::written += $w; 589 $::written += $w;
496 $self->{written} += $w; 590 $self->{written} += $w;
497 $l += $r; 591 $l += $r;
498 } 592 }
499 }
500 593
501 close $fh; 594 close $fh;
595 }
502} 596}
503 597
5041; 5981;

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