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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.20 by root, Thu Aug 16 21:55:35 2001 UTC vs.
Revision 1.67 by root, Sun May 19 21:00:47 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 ();
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
10# quite a bit faster than apache, ;) 16# quite a bit faster than apache, ;)
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
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 $errorlog->autoflush(1);
37}
38
39if ($ACCESS_LOG) {
40 use IO::Handle;
41 open $accesslog, ">>$ACCESS_LOG"
42 or die "$ACCESS_LOG: $!";
43 $accesslog->autoflush(1);
44}
45
15sub slog { 46sub slog {
16 my $level = shift; 47 my $level = shift;
17 my $format = shift; 48 my $format = shift;
49 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
18 printf "---: $format\n", @_; 50 printf "$NOW: $format\n", @_;
51 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
19} 52}
20 53
21my $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 => 200000;
22 61
23my @newcons; 62my @newcons;
24my @pool; 63my @pool;
25 64
26# one "execution thread" 65# one "execution thread"
27sub handler { 66sub handler {
28 while () { 67 while () {
29 my $new = pop @newcons;
30 if ($new) { 68 if (@newcons) {
31 eval { 69 eval {
32 conn->new(@$new)->handle; 70 conn->new(@{pop @newcons})->handle;
33 }; 71 };
34 slog 1, "$@" if $@ && !ref $@; 72 slog 1, "$@" if $@ && !ref $@;
73
74 $httpevent->broadcast; # only for testing, but doesn't matter much
75
35 $connections->up; 76 $connections->up;
36 } else { 77 } else {
37 last if @pool >= $MAX_POOL; 78 last if @pool >= $MAX_POOL;
38 push @pool, $Coro::current; 79 push @pool, $Coro::current;
39 schedule; 80 schedule;
40 } 81 }
41 } 82 }
83}
84
85sub listen_on {
86 my $listen = $_[0];
87
88 push @listen_sockets, $listen;
89
90 # the "main thread"
91 async {
92 slog 1, "accepting connections";
93 while () {
94 $connections->down;
95 push @newcons, [$listen->accept];
96 #slog 3, "accepted @$connections ".scalar(@pool);
97 if (@pool) {
98 (pop @pool)->ready;
99 } else {
100 async \&handler;
101 }
102
103 }
104 };
42} 105}
43 106
44my $http_port = new Coro::Socket 107my $http_port = new Coro::Socket
45 LocalAddr => $SERVER_HOST, 108 LocalAddr => $SERVER_HOST,
46 LocalPort => $SERVER_PORT, 109 LocalPort => $SERVER_PORT,
47 ReuseAddr => 1, 110 ReuseAddr => 1,
48 Listen => 50, 111 Listen => 50,
49 or die "unable to start server"; 112 or die "unable to start server";
50 113
51push @listen_sockets, $http_port; 114listen_on $http_port;
52 115
53# the "main thread" 116if ($SERVER_PORT2) {
54async { 117 my $http_port = new Coro::Socket
55 slog 1, "accepting connections"; 118 LocalAddr => $SERVER_HOST,
56 while () { 119 LocalPort => $SERVER_PORT2,
57 $connections->down; 120 ReuseAddr => 1,
58 push @newcons, [$http_port->accept]; 121 Listen => 50,
59 #slog 3, "accepted @$connections ".scalar(@pool); 122 or die "unable to start server";
60 $::NOW = time;
61 if (@pool) {
62 (pop @pool)->ready;
63 } else {
64 async \&handler;
65 }
66 123
67 } 124 listen_on $http_port;
68}; 125}
69 126
70package conn; 127package conn;
71 128
72use Socket; 129use Socket;
73use HTTP::Date; 130use HTTP::Date;
… …
76 133
77Linux::AIO::min_parallel $::AIO_PARALLEL; 134Linux::AIO::min_parallel $::AIO_PARALLEL;
78 135
79Event->io(fd => Linux::AIO::poll_fileno, 136Event->io(fd => Linux::AIO::poll_fileno,
80 poll => 'r', async => 1, 137 poll => 'r', async => 1,
81 cb => \&Linux::AIO::poll_cb ); 138 cb => \&Linux::AIO::poll_cb);
82 139
83our %conn; # $conn{ip}{fh} => connobj 140our %conn; # $conn{ip}{self} => connobj
141our %uri; # $uri{ip}{uri}{self}
84our %blocked; 142our %blocked;
85our %mimetype; 143our %mimetype;
86 144
87sub read_mimetypes { 145sub read_mimetypes {
88 local *M; 146 local *M;
… …
99 157
100read_mimetypes; 158read_mimetypes;
101 159
102sub new { 160sub new {
103 my $class = shift; 161 my $class = shift;
162 my $fh = shift;
104 my $peername = shift; 163 my $peername = shift;
105 my $fh = shift;
106 my $self = bless { fh => $fh }, $class; 164 my $self = bless { fh => $fh }, $class;
107 my (undef, $iaddr) = unpack_sockaddr_in $peername 165 my (undef, $iaddr) = unpack_sockaddr_in $peername
108 or $self->err(500, "unable to decode peername"); 166 or $self->err(500, "unable to decode peername");
109 167
168 $self->{remote_addr} =
110 $self->{remote_addr} = inet_ntoa $iaddr; 169 $self->{remote_id} = inet_ntoa $iaddr;
170
111 $self->{time} = $::NOW; 171 $self->{time} = $::NOW;
112 172
113 # enter ourselves into various lists 173 weaken ($Coro::current->{conn} = $self);
114 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
115 174
116 $::conns++; 175 $::conns++;
176 $::maxconns = $::conns if $::conns > $::maxconns;
117 177
118 $self; 178 $self;
119} 179}
120 180
121sub DESTROY { 181sub DESTROY {
122 my $self = shift; 182 #my $self = shift;
123
124 $::conns--; 183 $::conns--;
125
126 $self->eoconn;
127 delete $conn{$self->{remote_addr}}{$self*1};
128}
129
130# end of connection
131sub eoconn {
132 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
133} 184}
134 185
135sub slog { 186sub slog {
136 my $self = shift; 187 my $self = shift;
137 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 188 main::slog($_[0], "$self->{remote_id}> $_[1]");
138} 189}
139 190
140sub response { 191sub response {
141 my ($self, $code, $msg, $hdr, $content) = @_; 192 my ($self, $code, $msg, $hdr, $content) = @_;
142 my $res = "HTTP/1.1 $code $msg\015\012"; 193 my $res = "HTTP/1.1 $code $msg\015\012";
194 my $GZ = "";
143 195
144 #$res .= "Connection: close\015\012"; 196 if (exists $hdr->{Connection}) {
145 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 197 if ($hdr->{Connection} =~ /close/) {
198 $self->{h}{connection} = "close"
199 }
200 } else {
201 if ($self->{version} < 1.1) {
202 if ($self->{h}{connection} =~ /keep-alive/i) {
203 $hdr->{Connection} = "Keep-Alive";
204 } else {
205 $self->{h}{connection} = "close"
206 }
207 }
208 }
209
210 if ($self->{method} ne "HEAD"
211 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
212 && 400 < length $content
213 && $hdr->{"Content-Length"} == length $content
214 && !exists $hdr->{"Content-Encoding"}
215 ) {
216 my $orig = length $content;
217 $hdr->{"Content-Encoding"} = "gzip";
218 $content = Compress::Zlib::memGzip(\$content);
219 $hdr->{"Content-Length"} = length $content;
220 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
221 }
222
223 $res .= "Date: $HTTP_NOW\015\012";
146 224
147 while (my ($h, $v) = each %$hdr) { 225 while (my ($h, $v) = each %$hdr) {
148 $res .= "$h: $v\015\012" 226 $res .= "$h: $v\015\012"
149 } 227 }
150 $res .= "\015\012"; 228 $res .= "\015\012";
151 229
152 $res .= $content if defined $content and $self->{method} ne "HEAD"; 230 $res .= $content if defined $content and $self->{method} ne "HEAD";
153 231
154 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 232 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
233 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
234 " \"$self->{h}{referer}\"\n";
155 235
156 $self->{written} += 236 print $::accesslog $log if $::accesslog;
157 print {$self->{fh}} $res; 237 print STDERR $log;
238
239 $tbf_top->request(length $res, 1e6);
240 $self->{written} += print {$self->{fh}} $res;
158} 241}
159 242
160sub err { 243sub err {
161 my $self = shift; 244 my $self = shift;
162 my ($code, $msg, $hdr, $content) = @_; 245 my ($code, $msg, $hdr, $content) = @_;
163 246
164 unless (defined $content) { 247 unless (defined $content) {
165 $content = "$code $msg"; 248 $content = "$code $msg\n";
166 $hdr->{"Content-Type"} = "text/plain"; 249 $hdr->{"Content-Type"} = "text/plain";
167 $hdr->{"Content-Length"} = length $content; 250 $hdr->{"Content-Length"} = length $content;
168 } 251 }
169 $hdr->{"Connection"} = "close"; 252 $hdr->{"Connection"} = "close";
170 253
171 $self->response($code, $msg, $hdr, $content); 254 $self->response($code, $msg, $hdr, $content);
172 255
173 die bless {}, err::; 256 die bless {}, err::;
174} 257}
175 258
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 { 259sub handle {
204 my $self = shift; 260 my $self = shift;
205 my $fh = $self->{fh}; 261 my $fh = $self->{fh};
262
263 my $host;
206 264
207 $fh->timeout($::REQ_TIMEOUT); 265 $fh->timeout($::REQ_TIMEOUT);
208 while() { 266 while() {
209 $self->{reqs}++; 267 $self->{reqs}++;
210 268
… …
220 } 278 }
221 279
222 $self->{h} = {}; 280 $self->{h} = {};
223 281
224 $fh->timeout($::RES_TIMEOUT); 282 $fh->timeout($::RES_TIMEOUT);
225 my $ip = $self->{remote_addr};
226
227 if ($blocked{$ip}) {
228 $self->err_blocked($blocked{$ip})
229 if $blocked{$ip} > $::NOW;
230
231 delete $blocked{$ip};
232 }
233
234 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
235 $self->slog(2, "blocked ip $ip");
236 $self->err_blocked;
237 }
238 283
239 $req =~ /^(?:\015\012)? 284 $req =~ /^(?:\015\012)?
240 (GET|HEAD) \040+ 285 (GET|HEAD) \040+
241 ([^\040]+) \040+ 286 ([^\040]+) \040+
242 HTTP\/([0-9]+\.[0-9]+) 287 HTTP\/([0-9]+\.[0-9]+)
… …
255 my (%hdr, $h, $v); 300 my (%hdr, $h, $v);
256 301
257 $hdr{lc $1} .= ",$2" 302 $hdr{lc $1} .= ",$2"
258 while $req =~ /\G 303 while $req =~ /\G
259 ([^:\000-\040]+): 304 ([^:\000-\040]+):
260 [\008\040]* 305 [\011\040]*
261 ((?: [^\015\012]+ | \015\012[\008\040] )*) 306 ((?: [^\015\012]+ | \015\012[\011\040] )*)
262 \015\012 307 \015\012
263 /gxc; 308 /gxc;
264 309
265 $req =~ /\G\015\012$/ 310 $req =~ /\G\015\012$/
266 or $self->err(400, "bad request"); 311 or $self->err(400, "bad request");
267 312
268 $self->{h}{$h} = substr $v, 1 313 $self->{h}{$h} = substr $v, 1
269 while ($h, $v) = each %hdr; 314 while ($h, $v) = each %hdr;
270 } 315 }
271 316
317 # remote id should be unique per user
318 my $id = $self->{remote_addr};
319
320 if (exists $self->{h}{"client-ip"}) {
321 $id .= "[".$self->{h}{"client-ip"}."]";
322 } elsif (exists $self->{h}{"x-forwarded-for"}) {
323 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
324 }
325
326 $self->{remote_id} = $id;
327
328 weaken (local $conn{$id}{$self*1} = $self);
329
330 if ($blocked{$id}) {
331 $self->err_blocked
332 if $blocked{$id}[0] > $::NOW;
333
334 delete $blocked{$id};
335 }
336
337 # find out server name and port
338 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
339 $host = $1;
340 } else {
341 $host = $self->{h}{host};
342 }
343
344 if (defined $host) {
272 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 345 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
346 } else {
347 ($self->{server_port}, $host)
348 = unpack_sockaddr_in $self->{fh}->sockname
349 or $self->err(500, "unable to get socket name");
350 $host = inet_ntoa $host;
351 }
273 352
353 $self->{server_name} = $host;
354
274 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 355 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
275 356
357 eval {
276 $self->map_uri; 358 $self->map_uri;
277 $self->respond; 359 $self->respond;
360 };
278 361
279 $self->eoconn; 362 die if $@ && !ref $@;
280 363
281 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 364 last if $self->{h}{connection} =~ /close/i;
282 365
283 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); 366 $httpevent->broadcast;
367
284 $fh->timeout($::PER_TIMEOUT); 368 $fh->timeout($::PER_TIMEOUT);
285 } 369 }
370}
371
372sub block {
373 my $self = shift;
374
375 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
376 $self->slog(2, "blocked ip $self->{remote_id}");
377 $self->err_blocked;
286} 378}
287 379
288# uri => path mapping 380# uri => path mapping
289sub map_uri { 381sub map_uri {
290 my $self = shift; 382 my $self = shift;
291 my $host = $self->{h}{host} || "default"; 383 my $host = $self->{server_name};
292 my $uri = $self->{uri}; 384 my $uri = $self->{uri};
293 385
294 # some massaging, also makes it more secure 386 # some massaging, also makes it more secure
295 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 387 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
296 $uri =~ s%//+%/%g; 388 $uri =~ s%//+%/%g;
… …
306 $self->{path} = "$::DOCROOT/$host$uri"; 398 $self->{path} = "$::DOCROOT/$host$uri";
307 399
308 $self->access_check; 400 $self->access_check;
309} 401}
310 402
311sub server_address {
312 my $self = shift;
313 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
314 or $self->err(500, "unable to get socket name");
315 ((inet_ntoa $iaddr), $port);
316}
317
318sub server_host {
319 my $self = shift;
320 if (exists $self->{h}{host}) {
321 return $self->{h}{host};
322 } else {
323 return (($self->server_address)[0]);
324 }
325}
326
327sub server_hostport {
328 my $self = shift;
329 my ($host, $port);
330 if (exists $self->{h}{host}) {
331 ($host, $port) = ($self->{h}{host}, $self->{server_port});
332 } else {
333 ($host, $port) = $self->server_address;
334 }
335 $port = $port == 80 ? "" : ":$port";
336 $host.$port;
337}
338
339sub _cgi { 403sub _cgi {
340 my $self = shift; 404 my $self = shift;
341 my $path = shift; 405 my $path = shift;
342 my $fh; 406 my $fh;
343 407
344 # no two-way xxx supported 408 # no two-way xxx supported
345 if (0 == fork) { 409 if (0 == fork) {
346 open STDOUT, ">&".fileno($self->{fh}); 410 open STDOUT, ">&".fileno($self->{fh});
347 if (chdir $::DOCROOT) { 411 if (chdir $::DOCROOT) {
348 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 412 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
349 $ENV{HTTP_HOST} = $self->server_host; 413 $ENV{HTTP_HOST} = $self->{server_name};
350 $ENV{HTTP_PORT} = $self->{server_host}; 414 $ENV{HTTP_PORT} = $self->{server_port};
351 $ENV{SCRIPT_NAME} = $self->{name}; 415 $ENV{SCRIPT_NAME} = $self->{name};
352 exec $path; 416 exec $path;
353 } 417 }
354 Coro::State::_exit(0); 418 Coro::State::_exit(0);
355 } else { 419 } else {
420 die;
356 } 421 }
422}
423
424sub server_hostport {
425 $_[0]{server_port} == 80
426 ? $_[0]{server_name}
427 : "$_[0]{server_name}:$_[0]{server_port}";
357} 428}
358 429
359sub respond { 430sub respond {
360 my $self = shift; 431 my $self = shift;
361 my $path = $self->{path}; 432 my $path = $self->{path};
362 433
363 stat $path 434 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
364 or $self->err(404, "not found"); 435 if ($::internal{$1}) {
365 436 $::internal{$1}->($self);
366 $self->{stat} = [stat _];
367
368 # idiotic netscape sends idiotic headers AGAIN
369 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
370 ? str2time $1 : 0;
371
372 if (-d _ && -r _) {
373 # directory
374 if ($path !~ /\/$/) {
375 # create a redirect to get the trailing "/"
376 my $host = $self->server_hostport;
377 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
378 } else { 437 } else {
438 $self->err(404, "not found");
439 }
440 } else {
441
442 stat $path
443 or $self->err(404, "not found");
444
445 $self->{stat} = [stat _];
446
447 # idiotic netscape sends idiotic headers AGAIN
448 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
449 ? str2time $1 : 0;
450
451 if (-d _ && -r _) {
452 # directory
453 if ($path !~ /\/$/) {
454 # create a redirect to get the trailing "/"
455 # we don't try to avoid the :80
456 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
457 } else {
379 $ims < $self->{stat}[9] 458 $ims < $self->{stat}[9]
380 or $self->err(304, "not modified"); 459 or $self->err(304, "not modified");
381 460
382 if ($self->{method} eq "GET") {
383 if (-r "$path/index.html") { 461 if (-r "$path/index.html") {
462 # replace directory "size" by index.html filesize
384 $self->{path} .= "/index.html"; 463 $self->{stat} = [stat ($self->{path} .= "/index.html")];
385 $self->handle_file; 464 $self->handle_file($queue_index, $tbf_top);
386 } else { 465 } else {
387 $self->handle_dir; 466 $self->handle_dir;
388 } 467 }
389 } 468 }
390 }
391 } elsif (-f _ && -r _) { 469 } elsif (-f _ && -r _) {
392 -x _ and $self->err(403, "forbidden"); 470 -x _ and $self->err(403, "forbidden");
393 $self->handle_file; 471
472 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
473 my $timeout = $::NOW + 10;
474 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
475 if ($timeout < $::NOW) {
476 $self->block($::BLOCKTIME, "too many connections");
477 } else {
478 $httpevent->wait;
479 }
480 }
481 }
482
483 $self->handle_file($queue_file, $tbf_top);
394 } else { 484 } else {
395 $self->err(404, "not found"); 485 $self->err(404, "not found");
486 }
396 } 487 }
397} 488}
398 489
399sub handle_dir { 490sub handle_dir {
400 my $self = shift; 491 my $self = shift;
… …
402 493
403 $self->response(200, "ok", 494 $self->response(200, "ok",
404 { 495 {
405 "Content-Type" => "text/html", 496 "Content-Type" => "text/html",
406 "Content-Length" => length $idx, 497 "Content-Length" => length $idx,
498 "Last-Modified" => time2str ($self->{stat}[9]),
407 }, 499 },
408 $idx); 500 $idx);
409} 501}
410 502
411sub handle_file { 503sub handle_file {
412 my $self = shift; 504 my ($self, $queue, $tbf) = @_;
413 my $length = -s _; 505 my $length = $self->{stat}[7];
414 my $hdr = { 506 my $hdr = {
415 "Last-Modified" => time2str ((stat _)[9]), 507 "Last-Modified" => time2str ((stat _)[9]),
416 }; 508 };
417 509
418 my @code = (200, "ok"); 510 my @code = (200, "ok");
… …
426 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 518 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
427 } else { 519 } else {
428 ($l, $h) = (0, $length - 1); 520 ($l, $h) = (0, $length - 1);
429 goto ignore; 521 goto ignore;
430 } 522 }
431 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 523 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
432 } 524 }
433 $hdr->{"Content-Range"} = "bytes */$length"; 525 $hdr->{"Content-Range"} = "bytes */$length";
434 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); 526 $hdr->{"Content-Length"} = $length;
435 $self->err(416, "not satisfiable", $hdr); 527 $self->err(416, "not satisfiable", $hdr, "");
436 528
437satisfiable: 529satisfiable:
438 # check for segmented downloads 530 # check for segmented downloads
439 if ($l && $::NO_SEGMENTED) { 531 if ($l && $::NO_SEGMENTED) {
532 my $timeout = $::NOW + 15;
440 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 533 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
441 Coro::Event::do_timer(after => 15); 534 if ($timeout <= $::NOW) {
442 535 $self->block($::BLOCKTIME, "segmented downloads are forbidden");
443 $self->err(400, "segmented downloads are not allowed"); 536 #$self->err_segmented_download;
537 } else {
538 $httpevent->wait;
539 }
444 } 540 }
445 } 541 }
446 542
447 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 543 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
448 @code = (206, "partial content"); 544 @code = (206, "partial content");
… …
458 $hdr->{"Content-Length"} = $length; 554 $hdr->{"Content-Length"} = $length;
459 555
460 $self->response(@code, $hdr, ""); 556 $self->response(@code, $hdr, "");
461 557
462 if ($self->{method} eq "GET") { 558 if ($self->{method} eq "GET") {
559 $self->{time} = $::NOW;
560
561 my $current = $Coro::current;
562
463 my ($fh, $buf, $r); 563 my ($fh, $buf, $r);
464 my $current = $Coro::current; 564
465 open $fh, "<", $self->{path} 565 open $fh, "<", $self->{path}
466 or die "$self->{path}: late open failure ($!)"; 566 or die "$self->{path}: late open failure ($!)";
467 567
468 $h -= $l - 1; 568 $h -= $l - 1;
469 569
470 if (0) { 570 if (0) { # !AIO
471 if ($l) { 571 if ($l) {
472 sysseek $fh, $l, 0; 572 sysseek $fh, $l, 0;
473 } 573 }
474 } 574 }
575
576 my $transfer = $queue->start_transfer($h);
577 my $locked;
578 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
475 579
476 while ($h > 0) { 580 while ($h > 0) {
581 unless ($locked) {
582 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
583 $bufsize = $::BUFSIZE;
584 $self->{time} = $::NOW;
585 }
586 }
587
588 if ($blocked{$self->{remote_id}}) {
589 $self->{h}{connection} = "close";
590 die bless {}, err::;
591 }
592
477 if (0) { 593 if (0) { # !AIO
478 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 594 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
479 or last; 595 or last;
480 } else { 596 } else {
481 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), 597 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h),
482 $buf, 0, sub { 598 $buf, 0, sub {
483 $r = $_[0]; 599 $r = $_[0];
484 $current->ready; 600 Coro::ready($current);
485 }); 601 });
486 &Coro::schedule; 602 &Coro::schedule;
487 last unless $r; 603 last unless $r;
488 } 604 }
489 my $w = $self->{fh}->syswrite($buf) 605
606 $tbf->request(length $buf);
607 my $w = syswrite $self->{fh}, $buf
490 or last; 608 or last;
491 $::written += $w; 609 $::written += $w;
492 $self->{written} += $w; 610 $self->{written} += $w;
493 $l += $r; 611 $l += $r;
494 } 612 }
495 }
496 613
497 close $fh; 614 close $fh;
615 }
498} 616}
499 617
5001; 6181;

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