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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.29 by root, Sat Aug 25 15:14:03 2001 UTC vs.
Revision 1.76 by root, Wed Jul 13 13:58:51 2005 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 ();
9
10use Compress::Zlib ();
5 11
6no utf8; 12no utf8;
7use bytes; 13use bytes;
8 14
9# at least on my machine, this thingy serves files 15# at least on my machine, this thingy serves files
… …
11# and quite a bit slower than thttpd :( 17# and quite a bit slower than thttpd :(
12 18
13$SIG{PIPE} = 'IGNORE'; 19$SIG{PIPE} = 'IGNORE';
14 20
15our $accesslog; 21our $accesslog;
22our $errorlog;
23
24our $NOW;
25our $HTTP_NOW;
26
27Event->timer(interval => 1, hard => 1, cb => sub {
28 $NOW = time;
29 $HTTP_NOW = time2str $NOW;
30})->now;
31
32if ($ERROR_LOG) {
33 use IO::Handle;
34 open $errorlog, ">>$ERROR_LOG"
35 or die "$ERROR_LOG: $!";
36 $errorlog->autoflush(1);
37}
16 38
17if ($ACCESS_LOG) { 39if ($ACCESS_LOG) {
18 use IO::Handle; 40 use IO::Handle;
19 open $accesslog, ">>$ACCESS_LOG" 41 open $accesslog, ">>$ACCESS_LOG"
20 or die "$ACCESS_LOG: $!"; 42 or die "$ACCESS_LOG: $!";
… …
22} 44}
23 45
24sub slog { 46sub slog {
25 my $level = shift; 47 my $level = shift;
26 my $format = shift; 48 my $format = shift;
49 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
27 printf "---: $format\n", @_; 50 printf "$NOW: $format\n", @_;
51 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
28} 52}
29 53
30my $connections = new Coro::Semaphore $MAX_CONNECTS; 54our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
55our $httpevent = new Coro::Signal;
56
57our $queue_file = new transferqueue $MAX_TRANSFERS;
58our $queue_index = new transferqueue 10;
59
60our $tbf_top = new tbf rate => $TBF_RATE || 100000;
61
62my $unused_bytes = 0;
63my $unused_last = time;
64
65sub unused_bandwidth {
66 $unused_bytes += $_[0];
67 if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) {
68 $unused_last = $NOW;
69 $unused_bytes = 0;
70 $queue_file->force_wake_next;
71 slog 1, "forced filetransfer due to unused bandwidth";
72 }
73}
31 74
32my @newcons; 75my @newcons;
33my @pool; 76my @pool;
34 77
35# one "execution thread" 78# one "execution thread"
36sub handler { 79sub handler {
37 while () { 80 while () {
38 my $new = pop @newcons;
39 if ($new) { 81 if (@newcons) {
40 eval { 82 eval {
41 conn->new(@$new)->handle; 83 conn->new(@{pop @newcons})->handle;
42 }; 84 };
43 slog 1, "$@" if $@ && !ref $@; 85 slog 1, "$@" if $@ && !ref $@;
86
87 $httpevent->broadcast; # only for testing, but doesn't matter much
88
44 $connections->up; 89 $connections->up;
45 } else { 90 } else {
46 last if @pool >= $MAX_POOL; 91 last if @pool >= $MAX_POOL;
47 push @pool, $Coro::current; 92 push @pool, $Coro::current;
48 schedule; 93 schedule;
49 } 94 }
50 } 95 }
96}
97
98sub listen_on {
99 my $listen = $_[0];
100
101 push @listen_sockets, $listen;
102
103 # the "main thread"
104 async {
105 slog 1, "accepting connections";
106 while () {
107 $connections->down;
108 push @newcons, [$listen->accept];
109 #slog 3, "accepted @$connections ".scalar(@pool);
110 if (@pool) {
111 (pop @pool)->ready;
112 } else {
113 async \&handler;
114 }
115 }
116 };
51} 117}
52 118
53my $http_port = new Coro::Socket 119my $http_port = new Coro::Socket
54 LocalAddr => $SERVER_HOST, 120 LocalAddr => $SERVER_HOST,
55 LocalPort => $SERVER_PORT, 121 LocalPort => $SERVER_PORT,
56 ReuseAddr => 1, 122 ReuseAddr => 1,
57 Listen => 50, 123 Listen => 50,
58 or die "unable to start server"; 124 or die "unable to start server";
59 125
60push @listen_sockets, $http_port; 126listen_on $http_port;
61 127
62# the "main thread" 128if ($SERVER_PORT2) {
63async { 129 my $http_port = new Coro::Socket
64 slog 1, "accepting connections"; 130 LocalAddr => $SERVER_HOST,
65 while () { 131 LocalPort => $SERVER_PORT2,
66 $connections->down; 132 ReuseAddr => 1,
67 push @newcons, [$http_port->accept]; 133 Listen => 50,
68 #slog 3, "accepted @$connections ".scalar(@pool); 134 or die "unable to start server";
69 $::NOW = time;
70 if (@pool) {
71 (pop @pool)->ready;
72 } else {
73 async \&handler;
74 }
75 135
76 } 136 listen_on $http_port;
77}; 137}
78 138
79package conn; 139package conn;
80 140
81use Socket; 141use Socket;
82use HTTP::Date; 142use HTTP::Date;
83use Convert::Scalar 'weaken'; 143use Convert::Scalar 'weaken';
84use Linux::AIO; 144use Linux::AIO;
85 145
86Linux::AIO::min_parallel $::AIO_PARALLEL; 146Linux::AIO::min_parallel $::AIO_PARALLEL;
87
88my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
89 147
90Event->io(fd => Linux::AIO::poll_fileno, 148Event->io(fd => Linux::AIO::poll_fileno,
91 poll => 'r', async => 1, 149 poll => 'r', async => 1,
92 cb => \&Linux::AIO::poll_cb); 150 cb => \&Linux::AIO::poll_cb);
93 151
… …
111 169
112read_mimetypes; 170read_mimetypes;
113 171
114sub new { 172sub new {
115 my $class = shift; 173 my $class = shift;
174 my $fh = shift;
116 my $peername = shift; 175 my $peername = shift;
117 my $fh = shift;
118 my $self = bless { fh => $fh }, $class; 176 my $self = bless { fh => $fh }, $class;
119 my (undef, $iaddr) = unpack_sockaddr_in $peername 177 my (undef, $iaddr) = unpack_sockaddr_in $peername
120 or $self->err(500, "unable to decode peername"); 178 or $self->err(500, "unable to decode peername");
121 179
180 $self->{remote_addr} =
122 $self->{remote_addr} = inet_ntoa $iaddr; 181 $self->{remote_id} = inet_ntoa $iaddr;
182
123 $self->{time} = $::NOW; 183 $self->{time} = $::NOW;
124 184
125 # enter ourselves into various lists 185 weaken ($Coro::current->{conn} = $self);
126 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
127 186
128 $::conns++; 187 $::conns++;
188 $::maxconns = $::conns if $::conns > $::maxconns;
129 189
130 $self; 190 $self;
131} 191}
132 192
133sub DESTROY { 193sub DESTROY {
134 my $self = shift; 194 #my $self = shift;
135
136 $::conns--; 195 $::conns--;
137
138 $self->eoconn;
139 delete $conn{$self->{remote_addr}}{$self*1};
140} 196}
141 197
142# end of connection 198sub prune_cache {
143sub eoconn { 199 my $hash = $_[0];
144 my $self = shift; 200
145 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 201 for (keys %$hash) {
202 if (ref $hash->{$_} eq HASH::) {
203 prune_cache($hash->{$_});
204 unless (scalar keys %{$hash->{$_}}) {
205 delete $hash->{$_};
206 $d2++;
207 }
208 }
209 }
146} 210}
211
212sub prune_caches {
213 prune_cache \%conn;
214 prune_cache \%uri;
215
216 for (keys %blocked) {
217 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
218 }
219}
220
221Event->timer(interval => 60, cb => \&prune_caches);
147 222
148sub slog { 223sub slog {
149 my $self = shift; 224 my $self = shift;
150 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); 225 main::slog($_[0], "$self->{remote_id}> $_[1]");
151} 226}
152 227
153sub response { 228sub response {
154 my ($self, $code, $msg, $hdr, $content) = @_; 229 my ($self, $code, $msg, $hdr, $content) = @_;
155 my $res = "HTTP/1.1 $code $msg\015\012"; 230 my $res = "HTTP/1.1 $code $msg\015\012";
231 my $GZ = "";
156 232
157 $self->{h}{connection} ||= $hdr->{Connection}; 233 if (exists $hdr->{Connection}) {
234 if ($hdr->{Connection} =~ /close/) {
235 $self->{h}{connection} = "close"
236 }
237 } else {
238 if ($self->{version} < 1.1) {
239 if ($self->{h}{connection} =~ /keep-alive/i) {
240 $hdr->{Connection} = "Keep-Alive";
241 } else {
242 $self->{h}{connection} = "close"
243 }
244 }
245 }
158 246
159 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 247 if ($self->{method} ne "HEAD"
248 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
249 && 400 < length $content
250 && $hdr->{"Content-Length"} == length $content
251 && !exists $hdr->{"Content-Encoding"}
252 ) {
253 my $orig = length $content;
254 $hdr->{"Content-Encoding"} = "gzip";
255 $content = Compress::Zlib::memGzip(\$content);
256 $hdr->{"Content-Length"} = length $content;
257 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
258 }
259
260 $res .= "Date: $HTTP_NOW\015\012";
261 $res .= "Server: $::NAME\015\012";
160 262
161 while (my ($h, $v) = each %$hdr) { 263 while (my ($h, $v) = each %$hdr) {
162 $res .= "$h: $v\015\012" 264 $res .= "$h: $v\015\012"
163 } 265 }
164 $res .= "\015\012"; 266 $res .= "\015\012";
165 267
166 $res .= $content if defined $content and $self->{method} ne "HEAD"; 268 $res .= $content if defined $content and $self->{method} ne "HEAD";
167 269
168 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; 270 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
271 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
272 " \"$self->{h}{referer}\"\n";
169 273
170 print $accesslog $log if $accesslog; 274 print $::accesslog $log if $::accesslog;
171 print STDERR $log; 275 print STDERR $log;
172 276
173 $self->{written} += 277 $tbf_top->request(length $res, 1e6);
174 print {$self->{fh}} $res; 278 $self->{written} += print {$self->{fh}} $res;
175} 279}
176 280
177sub err { 281sub err {
178 my $self = shift; 282 my $self = shift;
179 my ($code, $msg, $hdr, $content) = @_; 283 my ($code, $msg, $hdr, $content) = @_;
180 284
181 unless (defined $content) { 285 unless (defined $content) {
182 $content = "$code $msg"; 286 $content = "$code $msg\n";
183 $hdr->{"Content-Type"} = "text/plain"; 287 $hdr->{"Content-Type"} = "text/plain";
184 $hdr->{"Content-Length"} = length $content; 288 $hdr->{"Content-Length"} = length $content;
185 } 289 }
186 $hdr->{"Connection"} = "close"; 290 $hdr->{"Connection"} = "close";
187 291
188 $self->response($code, $msg, $hdr, $content); 292 $self->response($code, $msg, $hdr, $content);
189 293
190 die bless {}, err::; 294 die bless {}, err::;
191}
192
193sub err_blocked {
194 my $self = shift;
195 my $ip = $self->{remote_addr};
196 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
197
198 Coro::Event::do_timer(after => 20*rand);
199
200 $self->err(401, "too many connections",
201 {
202 "Content-Type" => "text/html",
203 "Retry-After" => $::BLOCKTIME,
204 "Warning" => "Please do NOT retry, you have been blocked",
205 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
206 "Connection" => "close",
207 },
208 <<EOF);
209<html>
210<head>
211<title>Too many connections</title>
212</head>
213<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
214
215<p>You have been blocked because you opened too many connections. You
216may retry at</p>
217
218 <p><blockquote>$time.</blockquote></p>
219
220<p>Until then, each new access will renew the block. You might want to have a
221look at the <a href="http://www.goof.com/pcg/marc/animefaq.html#connectionlimit">FAQ</a>.</p>
222
223</body></html>
224EOF
225} 295}
226 296
227sub handle { 297sub handle {
228 my $self = shift; 298 my $self = shift;
229 my $fh = $self->{fh}; 299 my $fh = $self->{fh};
… …
246 } 316 }
247 317
248 $self->{h} = {}; 318 $self->{h} = {};
249 319
250 $fh->timeout($::RES_TIMEOUT); 320 $fh->timeout($::RES_TIMEOUT);
251 my $ip = $self->{remote_addr};
252
253 if ($blocked{$ip}) {
254 $self->err_blocked($blocked{$ip})
255 if $blocked{$ip} > $::NOW;
256
257 delete $blocked{$ip};
258 }
259
260 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
261 $self->slog(2, "blocked ip $ip");
262 $self->err_blocked;
263 }
264 321
265 $req =~ /^(?:\015\012)? 322 $req =~ /^(?:\015\012)?
266 (GET|HEAD) \040+ 323 (GET|HEAD) \040+
267 ([^\040]+) \040+ 324 ([^\040]+) \040+
268 HTTP\/([0-9]+\.[0-9]+) 325 HTTP\/([0-9]+\.[0-9]+)
… …
281 my (%hdr, $h, $v); 338 my (%hdr, $h, $v);
282 339
283 $hdr{lc $1} .= ",$2" 340 $hdr{lc $1} .= ",$2"
284 while $req =~ /\G 341 while $req =~ /\G
285 ([^:\000-\040]+): 342 ([^:\000-\040]+):
286 [\008\040]* 343 [\011\040]*
287 ((?: [^\015\012]+ | \015\012[\008\040] )*) 344 ((?: [^\015\012]+ | \015\012[\011\040] )*)
288 \015\012 345 \015\012
289 /gxc; 346 /gxc;
290 347
291 $req =~ /\G\015\012$/ 348 $req =~ /\G\015\012$/
292 or $self->err(400, "bad request"); 349 or $self->err(400, "bad request");
293 350
294 $self->{h}{$h} = substr $v, 1 351 $self->{h}{$h} = substr $v, 1
295 while ($h, $v) = each %hdr; 352 while ($h, $v) = each %hdr;
353 }
354
355 # remote id should be unique per user
356 my $id = $self->{remote_addr};
357
358 if (exists $self->{h}{"client-ip"}) {
359 $id .= "[".$self->{h}{"client-ip"}."]";
360 } elsif (exists $self->{h}{"x-forwarded-for"}) {
361 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
362 }
363
364 $self->{remote_id} = $id;
365
366 weaken (local $conn{$id}{$self*1} = $self);
367
368 if ($blocked{$id}) {
369 $self->err_blocked
370 if $blocked{$id}[0] > $::NOW;
371
372 delete $blocked{$id};
296 } 373 }
297 374
298 # find out server name and port 375 # find out server name and port
299 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { 376 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
300 $host = $1; 377 $host = $1;
… …
304 381
305 if (defined $host) { 382 if (defined $host) {
306 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; 383 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
307 } else { 384 } else {
308 ($self->{server_port}, $host) 385 ($self->{server_port}, $host)
309 = unpack_sockaddr_in $self->{fh}->getsockname 386 = unpack_sockaddr_in $self->{fh}->sockname
310 or $self->err(500, "unable to get socket name"); 387 or $self->err(500, "unable to get socket name");
311 $host = inet_ntoa $host; 388 $host = inet_ntoa $host;
312 } 389 }
313 390
314 $self->{server_name} = $host; 391 $self->{server_name} = $host;
315 392
316 # remote id should be unique per user
317 $self->{remote_id} = $self->{remote_addr};
318
319 if (exists $self->{h}{"client-ip"}) {
320 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
321 } elsif (exists $self->{h}{"x-forwarded-for"}) {
322 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
323 }
324
325 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 393 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
326 394
327 eval { 395 eval {
328 $self->map_uri; 396 $self->map_uri;
329 $self->respond; 397 $self->respond;
330 }; 398 };
331 399
332 $self->eoconn;
333
334 die if $@ && !ref $@; 400 die if $@ && !ref $@;
335 401
336 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; 402 last if $self->{h}{connection} =~ /close/i;
403
404 $httpevent->broadcast;
337 405
338 $fh->timeout($::PER_TIMEOUT); 406 $fh->timeout($::PER_TIMEOUT);
339 } 407 }
408}
409
410sub block {
411 my $self = shift;
412
413 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
414 $self->slog(2, "blocked ip $self->{remote_id}");
415 $self->err_blocked;
340} 416}
341 417
342# uri => path mapping 418# uri => path mapping
343sub map_uri { 419sub map_uri {
344 my $self = shift; 420 my $self = shift;
… …
391 467
392sub respond { 468sub respond {
393 my $self = shift; 469 my $self = shift;
394 my $path = $self->{path}; 470 my $path = $self->{path};
395 471
396 stat $path 472 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
397 or $self->err(404, "not found"); 473 if ($::internal{$1}) {
398 474 $::internal{$1}->($self);
399 $self->{stat} = [stat _];
400
401 # idiotic netscape sends idiotic headers AGAIN
402 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
403 ? str2time $1 : 0;
404
405 if (-d _ && -r _) {
406 # directory
407 if ($path !~ /\/$/) {
408 # create a redirect to get the trailing "/"
409 # we don't try to avoid the :80
410 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
411 } else { 475 } else {
412 $ims < $self->{stat}[9] 476 $self->err(404, "not found");
477 }
478 } else {
479
480 stat $path
413 or $self->err(304, "not modified"); 481 or $self->err(404, "not found");
414 482
415 if (-r "$path/index.html") { 483 $self->{stat} = [stat _];
416 $self->{path} .= "/index.html"; 484
417 $self->handle_file; 485 # idiotic netscape sends idiotic headers AGAIN
486 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
487 ? str2time $1 : 0;
488
489 if (-d _ && -r _) {
490 # directory
491 if ($path !~ /\/$/) {
492 # create a redirect to get the trailing "/"
493 # we don't try to avoid the :80
494 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
418 } else { 495 } else {
496 $ims < $self->{stat}[9]
497 or $self->err(304, "not modified");
498
499 if (-r "$path/index.html") {
500 # replace directory "size" by index.html filesize
501 $self->{stat} = [stat ($self->{path} .= "/index.html")];
502 $self->handle_file($queue_index, $tbf_top);
503 } else {
419 $self->handle_dir; 504 $self->handle_dir;
420 } 505 }
421 } 506 }
422 } elsif (-f _ && -r _) { 507 } elsif (-f _ && -r _) {
423 -x _ and $self->err(403, "forbidden"); 508 -x _ and $self->err(403, "forbidden");
424 $self->handle_file; 509
510 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
511 my $timeout = $::NOW + 10;
512 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
513 if ($timeout < $::NOW) {
514 $self->block($::BLOCKTIME, "too many connections");
515 } else {
516 $httpevent->wait;
517 }
518 }
519 }
520
521 $self->handle_file($queue_file, $tbf_top);
425 } else { 522 } else {
426 $self->err(404, "not found"); 523 $self->err(404, "not found");
524 }
427 } 525 }
428} 526}
429 527
430sub handle_dir { 528sub handle_dir {
431 my $self = shift; 529 my $self = shift;
432 my $idx = $self->diridx; 530 my $idx = $self->diridx;
433 531
434 $self->response(200, "ok", 532 $self->response(200, "ok",
435 { 533 {
436 "Content-Type" => "text/html", 534 "Content-Type" => "text/html; charset=utf-8",
437 "Content-Length" => length $idx, 535 "Content-Length" => length $idx,
536 "Last-Modified" => time2str ($self->{stat}[9]),
438 }, 537 },
439 $idx); 538 $idx);
440} 539}
441 540
442sub handle_file { 541sub handle_file {
443 my $self = shift; 542 my ($self, $queue, $tbf) = @_;
444 my $length = -s _; 543 my $length = $self->{stat}[7];
445 my $hdr = { 544 my $hdr = {
446 "Last-Modified" => time2str ((stat _)[9]), 545 "Last-Modified" => time2str ((stat _)[9]),
546 "Accept-Ranges" => "bytes",
447 }; 547 };
448 548
449 my @code = (200, "ok"); 549 my @code = (200, "ok");
450 my ($l, $h); 550 my ($l, $h);
451 551
… …
461 } 561 }
462 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 562 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
463 } 563 }
464 $hdr->{"Content-Range"} = "bytes */$length"; 564 $hdr->{"Content-Range"} = "bytes */$length";
465 $hdr->{"Content-Length"} = $length; 565 $hdr->{"Content-Length"} = $length;
466 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
467 $self->err(416, "not satisfiable", $hdr, ""); 566 $self->err(416, "not satisfiable", $hdr, "");
468 567
469satisfiable: 568satisfiable:
470 # check for segmented downloads 569 # check for segmented downloads
471 if ($l && $::NO_SEGMENTED) { 570 if ($l && $::NO_SEGMENTED) {
472 my $delay = 60; 571 my $timeout = $::NOW + 15;
473 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 572 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
474 if ($delay <= 0) { 573 if ($timeout <= $::NOW) {
475 $self->err(400, "segmented downloads are not allowed", 574 $self->block($::BLOCKTIME, "segmented downloads are forbidden");
476 { "Content-Type" => "text/html", Connection => "close" }, <<EOF); 575 #$self->err_segmented_download;
477<html>
478<head>
479<title>Segmented downloads are not allowed</title>
480</head>
481<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
482
483<p>Segmented downloads are not allowed on this server. Please refer to the
484<a href="http://www.goof.com/pcg/marc/animefaq.html#segmented_downloads">FAQ</a>.</p>
485
486</body></html>
487EOF
488 } else { 576 } else {
489 Coro::Event::do_timer(after => 3); $delay -= 3; 577 $httpevent->wait;
490 } 578 }
491 } 579 }
492 } 580 }
493 581
494 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 582 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
… …
505 $hdr->{"Content-Length"} = $length; 593 $hdr->{"Content-Length"} = $length;
506 594
507 $self->response(@code, $hdr, ""); 595 $self->response(@code, $hdr, "");
508 596
509 if ($self->{method} eq "GET") { 597 if ($self->{method} eq "GET") {
598 $self->{time} = $::NOW;
599 $self->{written} = 0;
600
601 my $current = $Coro::current;
602
510 my ($fh, $buf, $r); 603 my ($fh, $buf, $r);
511 my $current = $Coro::current; 604
512 open $fh, "<", $self->{path} 605 open $fh, "<", $self->{path}
513 or die "$self->{path}: late open failure ($!)"; 606 or die "$self->{path}: late open failure ($!)";
514 607
515 $h -= $l - 1; 608 $h -= $l - 1;
516 609
517 if (0) { 610 if (0) { # !AIO
518 if ($l) { 611 if ($l) {
519 sysseek $fh, $l, 0; 612 sysseek $fh, $l, 0;
520 } 613 }
521 } 614 }
615
616 my $transfer = $queue->start_transfer($h);
617 my $locked;
618 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
522 619
523 while ($h > 0) { 620 while ($h > 0) {
621 unless ($locked) {
622 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
623 $bufsize = $::BUFSIZE;
624 $self->{time} = $::NOW;
625 $self->{written} = 0;
626 }
627 }
628
629 if ($blocked{$self->{remote_id}}) {
630 $self->{h}{connection} = "close";
631 die bless {}, err::;
632 }
633
524 if (0) { 634 if (0) { # !AIO
525 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 635 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
526 or last; 636 or last;
527 } else { 637 } else {
528 undef $buf; 638 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h),
529 $aio_requests->down;
530 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
531 $buf, 0, sub { 639 $buf, 0, sub {
532 $r = $_[0]; 640 $r = $_[0];
533 $current->ready; 641 Coro::ready($current);
534 }); 642 });
535 &Coro::schedule; 643 &Coro::schedule;
536 $aio_requests->up;
537 last unless $r; 644 last unless $r;
538 } 645 }
539 my $w = $self->{fh}->syswrite($buf) 646
647 $tbf->request(length $buf);
648 my $w = syswrite $self->{fh}, $buf
540 or last; 649 or last;
541 $::written += $w; 650 $::written += $w;
542 $self->{written} += $w; 651 $self->{written} += $w;
543 $l += $r; 652 $l += $r;
544 } 653 }
545 }
546 654
547 close $fh; 655 close $fh;
656 }
548} 657}
549 658
5501; 6591;

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