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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.18 by root, Wed Aug 15 03:13:36 2001 UTC vs.
Revision 1.70 by root, Wed May 22 00:41:44 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 => 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}
22 74
23my @newcons; 75my @newcons;
24my @pool; 76my @pool;
25 77
26# one "execution thread" 78# one "execution thread"
27sub handler { 79sub handler {
28 while () { 80 while () {
29 my $new = pop @newcons;
30 if ($new) { 81 if (@newcons) {
31 eval { 82 eval {
32 conn->new(@$new)->handle; 83 conn->new(@{pop @newcons})->handle;
33 }; 84 };
34 slog 1, "$@" if $@ && !ref $@; 85 slog 1, "$@" if $@ && !ref $@;
86
87 $httpevent->broadcast; # only for testing, but doesn't matter much
88
35 $connections->up; 89 $connections->up;
36 } else { 90 } else {
37 last if @pool >= $MAX_POOL; 91 last if @pool >= $MAX_POOL;
38 push @pool, $Coro::current; 92 push @pool, $Coro::current;
39 schedule; 93 schedule;
40 } 94 }
41 } 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 }
117 };
42} 118}
43 119
44my $http_port = new Coro::Socket 120my $http_port = new Coro::Socket
45 LocalAddr => $SERVER_HOST, 121 LocalAddr => $SERVER_HOST,
46 LocalPort => $SERVER_PORT, 122 LocalPort => $SERVER_PORT,
47 ReuseAddr => 1, 123 ReuseAddr => 1,
48 Listen => 50, 124 Listen => 50,
49 or die "unable to start server"; 125 or die "unable to start server";
50 126
51push @listen_sockets, $http_port; 127listen_on $http_port;
52 128
53# the "main thread" 129if ($SERVER_PORT2) {
54async { 130 my $http_port = new Coro::Socket
55 slog 1, "accepting connections"; 131 LocalAddr => $SERVER_HOST,
56 while () { 132 LocalPort => $SERVER_PORT2,
57 $connections->down; 133 ReuseAddr => 1,
58 push @newcons, [$http_port->accept]; 134 Listen => 50,
59 #slog 3, "accepted @$connections ".scalar(@pool); 135 or die "unable to start server";
60 $::NOW = time;
61 if (@pool) {
62 (pop @pool)->ready;
63 } else {
64 async \&handler;
65 }
66 136
67 } 137 listen_on $http_port;
68}; 138}
69 139
70package conn; 140package conn;
71 141
72use Socket; 142use Socket;
73use HTTP::Date; 143use HTTP::Date;
… …
76 146
77Linux::AIO::min_parallel $::AIO_PARALLEL; 147Linux::AIO::min_parallel $::AIO_PARALLEL;
78 148
79Event->io(fd => Linux::AIO::poll_fileno, 149Event->io(fd => Linux::AIO::poll_fileno,
80 poll => 'r', async => 1, 150 poll => 'r', async => 1,
81 cb => \&Linux::AIO::poll_cb ); 151 cb => \&Linux::AIO::poll_cb);
82 152
83our %conn; # $conn{ip}{fh} => connobj 153our %conn; # $conn{ip}{self} => connobj
154our %uri; # $uri{ip}{uri}{self}
84our %blocked; 155our %blocked;
85our %mimetype; 156our %mimetype;
86 157
87sub read_mimetypes { 158sub read_mimetypes {
88 local *M; 159 local *M;
… …
99 170
100read_mimetypes; 171read_mimetypes;
101 172
102sub new { 173sub new {
103 my $class = shift; 174 my $class = shift;
175 my $fh = shift;
104 my $peername = shift; 176 my $peername = shift;
105 my $fh = shift;
106 my $self = bless { fh => $fh }, $class; 177 my $self = bless { fh => $fh }, $class;
107 my (undef, $iaddr) = unpack_sockaddr_in $peername 178 my (undef, $iaddr) = unpack_sockaddr_in $peername
108 or $self->err(500, "unable to decode peername"); 179 or $self->err(500, "unable to decode peername");
109 180
181 $self->{remote_addr} =
110 $self->{remote_addr} = inet_ntoa $iaddr; 182 $self->{remote_id} = inet_ntoa $iaddr;
183
111 $self->{time} = $::NOW; 184 $self->{time} = $::NOW;
112 185
113 # enter ourselves into various lists 186 weaken ($Coro::current->{conn} = $self);
114 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
115 187
116 $::conns++; 188 $::conns++;
189 $::maxconns = $::conns if $::conns > $::maxconns;
117 190
118 $self; 191 $self;
119} 192}
120 193
121sub DESTROY { 194sub DESTROY {
122 my $self = shift; 195 #my $self = shift;
123
124 $::conns--; 196 $::conns--;
125
126 delete $conn{$self->{remote_addr}}{$self*1};
127 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
128} 197}
129 198
130sub slog { 199sub slog {
131 my $self = shift; 200 my $self = shift;
132 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 201 main::slog($_[0], "$self->{remote_id}> $_[1]");
133} 202}
134 203
135sub response { 204sub response {
136 my ($self, $code, $msg, $hdr, $content) = @_; 205 my ($self, $code, $msg, $hdr, $content) = @_;
137 my $res = "HTTP/1.1 $code $msg\015\012"; 206 my $res = "HTTP/1.1 $code $msg\015\012";
207 my $GZ = "";
138 208
139 #$res .= "Connection: close\015\012"; 209 if (exists $hdr->{Connection}) {
140 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 210 if ($hdr->{Connection} =~ /close/) {
211 $self->{h}{connection} = "close"
212 }
213 } else {
214 if ($self->{version} < 1.1) {
215 if ($self->{h}{connection} =~ /keep-alive/i) {
216 $hdr->{Connection} = "Keep-Alive";
217 } else {
218 $self->{h}{connection} = "close"
219 }
220 }
221 }
222
223 if ($self->{method} ne "HEAD"
224 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
225 && 400 < length $content
226 && $hdr->{"Content-Length"} == length $content
227 && !exists $hdr->{"Content-Encoding"}
228 ) {
229 my $orig = length $content;
230 $hdr->{"Content-Encoding"} = "gzip";
231 $content = Compress::Zlib::memGzip(\$content);
232 $hdr->{"Content-Length"} = length $content;
233 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
234 }
235
236 $res .= "Date: $HTTP_NOW\015\012";
141 237
142 while (my ($h, $v) = each %$hdr) { 238 while (my ($h, $v) = each %$hdr) {
143 $res .= "$h: $v\015\012" 239 $res .= "$h: $v\015\012"
144 } 240 }
145 $res .= "\015\012"; 241 $res .= "\015\012";
146 242
147 $res .= $content if defined $content and $self->{method} ne "HEAD"; 243 $res .= $content if defined $content and $self->{method} ne "HEAD";
148 244
149 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 245 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
246 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
247 " \"$self->{h}{referer}\"\n";
150 248
151 $self->{written} += 249 print $::accesslog $log if $::accesslog;
152 print {$self->{fh}} $res; 250 print STDERR $log;
251
252 $tbf_top->request(length $res, 1e6);
253 $self->{written} += print {$self->{fh}} $res;
153} 254}
154 255
155sub err { 256sub err {
156 my $self = shift; 257 my $self = shift;
157 my ($code, $msg, $hdr, $content) = @_; 258 my ($code, $msg, $hdr, $content) = @_;
158 259
159 unless (defined $content) { 260 unless (defined $content) {
160 $content = "$code $msg"; 261 $content = "$code $msg\n";
161 $hdr->{"Content-Type"} = "text/plain"; 262 $hdr->{"Content-Type"} = "text/plain";
162 $hdr->{"Content-Length"} = length $content; 263 $hdr->{"Content-Length"} = length $content;
163 } 264 }
164 $hdr->{"Connection"} = "close"; 265 $hdr->{"Connection"} = "close";
165 266
166 $self->response($code, $msg, $hdr, $content); 267 $self->response($code, $msg, $hdr, $content);
167 268
168 die bless {}, err::; 269 die bless {}, err::;
169} 270}
170 271
171sub err_blocked {
172 my $self = shift;
173 my $ip = $self->{remote_addr};
174 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
175
176 Coro::Event::do_timer(after => 15);
177
178 $self->err(401, "too many connections",
179 {
180 "Content-Type" => "text/html",
181 "Retry-After" => $::BLOCKTIME
182 },
183 <<EOF);
184<html><p>
185You have been blocked because you opened too many connections. You
186may retry at</p>
187
188 <p><blockquote>$time.</blockquote></p>
189
190<p>Until then, each new access will renew the block. You might want to have a
191look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
192</html>
193EOF
194}
195
196sub handle { 272sub handle {
197 my $self = shift; 273 my $self = shift;
198 my $fh = $self->{fh}; 274 my $fh = $self->{fh};
275
276 my $host;
199 277
200 $fh->timeout($::REQ_TIMEOUT); 278 $fh->timeout($::REQ_TIMEOUT);
201 while() { 279 while() {
202 $self->{reqs}++; 280 $self->{reqs}++;
203 281
… …
213 } 291 }
214 292
215 $self->{h} = {}; 293 $self->{h} = {};
216 294
217 $fh->timeout($::RES_TIMEOUT); 295 $fh->timeout($::RES_TIMEOUT);
218 my $ip = $self->{remote_addr};
219
220 if ($blocked{$ip}) {
221 $self->err_blocked($blocked{$ip})
222 if $blocked{$ip} > $::NOW;
223
224 delete $blocked{$ip};
225 }
226
227 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
228 $self->slog(2, "blocked ip $ip");
229 $self->err_blocked;
230 }
231 296
232 $req =~ /^(?:\015\012)? 297 $req =~ /^(?:\015\012)?
233 (GET|HEAD) \040+ 298 (GET|HEAD) \040+
234 ([^\040]+) \040+ 299 ([^\040]+) \040+
235 HTTP\/([0-9]+\.[0-9]+) 300 HTTP\/([0-9]+\.[0-9]+)
… …
238 303
239 $self->{method} = $1; 304 $self->{method} = $1;
240 $self->{uri} = $2; 305 $self->{uri} = $2;
241 $self->{version} = $3; 306 $self->{version} = $3;
242 307
243 $3 eq "1.0" or $3 eq "1.1" 308 $3 =~ /^1\./
244 or $self->err(506, "http protocol version $3 not supported"); 309 or $self->err(506, "http protocol version $3 not supported");
245 310
246 # parse headers 311 # parse headers
247 { 312 {
248 my (%hdr, $h, $v); 313 my (%hdr, $h, $v);
249 314
250 $hdr{lc $1} .= ",$2" 315 $hdr{lc $1} .= ",$2"
251 while $req =~ /\G 316 while $req =~ /\G
252 ([^:\000-\040]+): 317 ([^:\000-\040]+):
253 [\008\040]* 318 [\011\040]*
254 ((?: [^\015\012]+ | \015\012[\008\040] )*) 319 ((?: [^\015\012]+ | \015\012[\011\040] )*)
255 \015\012 320 \015\012
256 /gxc; 321 /gxc;
257 322
258 $req =~ /\G\015\012$/ 323 $req =~ /\G\015\012$/
259 or $self->err(400, "bad request"); 324 or $self->err(400, "bad request");
260 325
261 $self->{h}{$h} = substr $v, 1 326 $self->{h}{$h} = substr $v, 1
262 while ($h, $v) = each %hdr; 327 while ($h, $v) = each %hdr;
263 } 328 }
264 329
330 # remote id should be unique per user
331 my $id = $self->{remote_addr};
332
333 if (exists $self->{h}{"client-ip"}) {
334 $id .= "[".$self->{h}{"client-ip"}."]";
335 } elsif (exists $self->{h}{"x-forwarded-for"}) {
336 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
337 }
338
339 $self->{remote_id} = $id;
340
341 weaken (local $conn{$id}{$self*1} = $self);
342
343 if ($blocked{$id}) {
344 $self->err_blocked
345 if $blocked{$id}[0] > $::NOW;
346
347 delete $blocked{$id};
348 }
349
350 # find out server name and port
351 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
352 $host = $1;
353 } else {
354 $host = $self->{h}{host};
355 }
356
357 if (defined $host) {
265 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 358 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
359 } else {
360 ($self->{server_port}, $host)
361 = unpack_sockaddr_in $self->{fh}->sockname
362 or $self->err(500, "unable to get socket name");
363 $host = inet_ntoa $host;
364 }
266 365
366 $self->{server_name} = $host;
367
267 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 368 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
268 369
370 eval {
269 $self->map_uri; 371 $self->map_uri;
270 $self->respond; 372 $self->respond;
373 };
271 374
375 die if $@ && !ref $@;
376
272 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 377 last if $self->{h}{connection} =~ /close/i;
273 378
274 $self->slog(9, "persistant connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); 379 $httpevent->broadcast;
380
275 $fh->timeout($::PER_TIMEOUT); 381 $fh->timeout($::PER_TIMEOUT);
276 } 382 }
383}
384
385sub block {
386 my $self = shift;
387
388 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
389 $self->slog(2, "blocked ip $self->{remote_id}");
390 $self->err_blocked;
277} 391}
278 392
279# uri => path mapping 393# uri => path mapping
280sub map_uri { 394sub map_uri {
281 my $self = shift; 395 my $self = shift;
282 my $host = $self->{h}{host} || "default"; 396 my $host = $self->{server_name};
283 my $uri = $self->{uri}; 397 my $uri = $self->{uri};
284 398
285 # some massaging, also makes it more secure 399 # some massaging, also makes it more secure
286 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 400 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
287 $uri =~ s%//+%/%g; 401 $uri =~ s%//+%/%g;
… …
297 $self->{path} = "$::DOCROOT/$host$uri"; 411 $self->{path} = "$::DOCROOT/$host$uri";
298 412
299 $self->access_check; 413 $self->access_check;
300} 414}
301 415
302sub server_address {
303 my $self = shift;
304 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
305 or $self->err(500, "unable to get socket name");
306 ((inet_ntoa $iaddr), $port);
307}
308
309sub server_host {
310 my $self = shift;
311 if (exists $self->{h}{host}) {
312 return $self->{h}{host};
313 } else {
314 return (($self->server_address)[0]);
315 }
316}
317
318sub server_hostport {
319 my $self = shift;
320 my ($host, $port);
321 if (exists $self->{h}{host}) {
322 ($host, $port) = ($self->{h}{host}, $self->{server_port});
323 } else {
324 ($host, $port) = $self->server_address;
325 }
326 $port = $port == 80 ? "" : ":$port";
327 $host.$port;
328}
329
330sub _cgi { 416sub _cgi {
331 my $self = shift; 417 my $self = shift;
332 my $path = shift; 418 my $path = shift;
333 my $fh; 419 my $fh;
334 420
335 # no two-way xxx supported 421 # no two-way xxx supported
336 if (0 == fork) { 422 if (0 == fork) {
337 open STDOUT, ">&".fileno($self->{fh}); 423 open STDOUT, ">&".fileno($self->{fh});
338 if (chdir $::DOCROOT) { 424 if (chdir $::DOCROOT) {
339 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 425 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
340 $ENV{HTTP_HOST} = $self->server_host; 426 $ENV{HTTP_HOST} = $self->{server_name};
341 $ENV{HTTP_PORT} = $self->{server_host}; 427 $ENV{HTTP_PORT} = $self->{server_port};
342 $ENV{SCRIPT_NAME} = $self->{name}; 428 $ENV{SCRIPT_NAME} = $self->{name};
343 exec $path; 429 exec $path;
344 } 430 }
345 Coro::State::_exit(0); 431 Coro::State::_exit(0);
346 } else { 432 } else {
433 die;
347 } 434 }
435}
436
437sub server_hostport {
438 $_[0]{server_port} == 80
439 ? $_[0]{server_name}
440 : "$_[0]{server_name}:$_[0]{server_port}";
348} 441}
349 442
350sub respond { 443sub respond {
351 my $self = shift; 444 my $self = shift;
352 my $path = $self->{path}; 445 my $path = $self->{path};
353 446
354 stat $path 447 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
355 or $self->err(404, "not found"); 448 if ($::internal{$1}) {
356 449 $::internal{$1}->($self);
357 $self->{stat} = [stat _];
358
359 # idiotic netscape sends idiotic headers AGAIN
360 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
361 ? str2time $1 : 0;
362
363 if (-d _ && -r _) {
364 # directory
365 if ($path !~ /\/$/) {
366 # create a redirect to get the trailing "/"
367 my $host = $self->server_hostport;
368 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
369 } else { 450 } else {
451 $self->err(404, "not found");
452 }
453 } else {
454
455 stat $path
456 or $self->err(404, "not found");
457
458 $self->{stat} = [stat _];
459
460 # idiotic netscape sends idiotic headers AGAIN
461 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
462 ? str2time $1 : 0;
463
464 if (-d _ && -r _) {
465 # directory
466 if ($path !~ /\/$/) {
467 # create a redirect to get the trailing "/"
468 # we don't try to avoid the :80
469 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
470 } else {
370 $ims < $self->{stat}[9] 471 $ims < $self->{stat}[9]
371 or $self->err(304, "not modified"); 472 or $self->err(304, "not modified");
372 473
373 if ($self->{method} eq "GET") {
374 if (-r "$path/index.html") { 474 if (-r "$path/index.html") {
475 # replace directory "size" by index.html filesize
375 $self->{path} .= "/index.html"; 476 $self->{stat} = [stat ($self->{path} .= "/index.html")];
376 $self->handle_file; 477 $self->handle_file($queue_index, $tbf_top);
377 } else { 478 } else {
378 $self->handle_dir; 479 $self->handle_dir;
379 } 480 }
380 } 481 }
381 }
382 } elsif (-f _ && -r _) { 482 } elsif (-f _ && -r _) {
383 -x _ and $self->err(403, "forbidden"); 483 -x _ and $self->err(403, "forbidden");
384 $self->handle_file; 484
485 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
486 my $timeout = $::NOW + 10;
487 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
488 if ($timeout < $::NOW) {
489 $self->block($::BLOCKTIME, "too many connections");
490 } else {
491 $httpevent->wait;
492 }
493 }
494 }
495
496 $self->handle_file($queue_file, $tbf_top);
385 } else { 497 } else {
386 $self->err(404, "not found"); 498 $self->err(404, "not found");
499 }
387 } 500 }
388} 501}
389 502
390sub handle_dir { 503sub handle_dir {
391 my $self = shift; 504 my $self = shift;
… …
393 506
394 $self->response(200, "ok", 507 $self->response(200, "ok",
395 { 508 {
396 "Content-Type" => "text/html", 509 "Content-Type" => "text/html",
397 "Content-Length" => length $idx, 510 "Content-Length" => length $idx,
511 "Last-Modified" => time2str ($self->{stat}[9]),
398 }, 512 },
399 $idx); 513 $idx);
400} 514}
401 515
402sub handle_file { 516sub handle_file {
403 my $self = shift; 517 my ($self, $queue, $tbf) = @_;
404 my $length = -s _; 518 my $length = $self->{stat}[7];
405 my $hdr = { 519 my $hdr = {
406 "Last-Modified" => time2str ((stat _)[9]), 520 "Last-Modified" => time2str ((stat _)[9]),
407 }; 521 };
408 522
409 my @code = (200, "ok"); 523 my @code = (200, "ok");
… …
417 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 531 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
418 } else { 532 } else {
419 ($l, $h) = (0, $length - 1); 533 ($l, $h) = (0, $length - 1);
420 goto ignore; 534 goto ignore;
421 } 535 }
422 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 536 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
423 } 537 }
424 $hdr->{"Content-Range"} = "bytes */$length"; 538 $hdr->{"Content-Range"} = "bytes */$length";
539 $hdr->{"Content-Length"} = $length;
425 $self->err(416, "not satisfiable", $hdr); 540 $self->err(416, "not satisfiable", $hdr, "");
426 541
427satisfiable: 542satisfiable:
428 # check for segmented downloads 543 # check for segmented downloads
429 if ($l && $::NO_SEGMENTED) { 544 if ($l && $::NO_SEGMENTED) {
545 my $timeout = $::NOW + 15;
430 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 546 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
431 Coro::Event::do_timer(after => 15); 547 if ($timeout <= $::NOW) {
432 548 $self->block($::BLOCKTIME, "segmented downloads are forbidden");
433 $self->err(400, "segmented downloads are not allowed"); 549 #$self->err_segmented_download;
550 } else {
551 $httpevent->wait;
552 }
434 } 553 }
435 } 554 }
436 555
437 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 556 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
438 @code = (206, "partial content"); 557 @code = (206, "partial content");
… …
448 $hdr->{"Content-Length"} = $length; 567 $hdr->{"Content-Length"} = $length;
449 568
450 $self->response(@code, $hdr, ""); 569 $self->response(@code, $hdr, "");
451 570
452 if ($self->{method} eq "GET") { 571 if ($self->{method} eq "GET") {
572 $self->{time} = $::NOW;
573
574 my $current = $Coro::current;
575
453 my ($fh, $buf, $r); 576 my ($fh, $buf, $r);
454 my $current = $Coro::current; 577
455 open $fh, "<", $self->{path} 578 open $fh, "<", $self->{path}
456 or die "$self->{path}: late open failure ($!)"; 579 or die "$self->{path}: late open failure ($!)";
457 580
458 $h -= $l - 1; 581 $h -= $l - 1;
459 582
583 if (0) { # !AIO
584 if ($l) {
585 sysseek $fh, $l, 0;
586 }
587 }
588
589 my $transfer = $queue->start_transfer($h);
590 my $locked;
591 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
592
460 while ($h > 0) { 593 while ($h > 0) {
461 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), 594 unless ($locked) {
595 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
596 $bufsize = $::BUFSIZE;
597 $self->{time} = $::NOW;
598 }
599 }
600
601 if ($blocked{$self->{remote_id}}) {
602 $self->{h}{connection} = "close";
603 die bless {}, err::;
604 }
605
606 if (0) { # !AIO
607 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
608 or last;
609 } else {
610 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h),
462 $buf, 0, sub { 611 $buf, 0, sub {
463 $r = $_[0]; 612 $r = $_[0];
464 $current->ready; 613 Coro::ready($current);
465 }); 614 });
466 &Coro::schedule; 615 &Coro::schedule;
467 last unless $r; 616 last unless $r;
468 my $w = $self->{fh}->syswrite($buf) 617 }
618
619 $tbf->request(length $buf);
620 my $w = syswrite $self->{fh}, $buf
469 or last; 621 or last;
470 $::written += $w; 622 $::written += $w;
471 $self->{written} += $w; 623 $self->{written} += $w;
472 $l += $r; 624 $l += $r;
473 } 625 }
474 }
475 626
476 close $fh; 627 close $fh;
628 }
477} 629}
478 630
4791; 6311;

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