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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.28 by root, Mon Aug 20 16:58:19 2001 UTC vs.
Revision 1.79 by root, Fri Dec 1 03:53:33 2006 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;
6use Coro::AIO ();
7
8use HTTP::Date;
9use POSIX ();
10
11use Compress::Zlib ();
5 12
6no utf8; 13no utf8;
7use bytes; 14use bytes;
8 15
9# at least on my machine, this thingy serves files 16# at least on my machine, this thingy serves files
… …
11# and quite a bit slower than thttpd :( 18# and quite a bit slower than thttpd :(
12 19
13$SIG{PIPE} = 'IGNORE'; 20$SIG{PIPE} = 'IGNORE';
14 21
15our $accesslog; 22our $accesslog;
23our $errorlog;
24
25our $NOW;
26our $HTTP_NOW;
27
28Event->timer(interval => 1, hard => 1, cb => sub {
29 $NOW = time;
30 $HTTP_NOW = time2str $NOW;
31})->now;
32
33if ($ERROR_LOG) {
34 use IO::Handle;
35 open $errorlog, ">>$ERROR_LOG"
36 or die "$ERROR_LOG: $!";
37 $errorlog->autoflush(1);
38}
16 39
17if ($ACCESS_LOG) { 40if ($ACCESS_LOG) {
18 use IO::Handle; 41 use IO::Handle;
19 open $accesslog, ">>$ACCESS_LOG" 42 open $accesslog, ">>$ACCESS_LOG"
20 or die "$ACCESS_LOG: $!"; 43 or die "$ACCESS_LOG: $!";
… …
22} 45}
23 46
24sub slog { 47sub slog {
25 my $level = shift; 48 my $level = shift;
26 my $format = shift; 49 my $format = shift;
50 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
27 printf "---: $format\n", @_; 51 printf "$NOW: $format\n", @_;
52 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
28} 53}
29 54
30my $connections = new Coro::Semaphore $MAX_CONNECTS; 55our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
56our $httpevent = new Coro::Signal;
57
58our $queue_file = new transferqueue $MAX_TRANSFERS;
59our $queue_index = new transferqueue 10;
60
61our $tbf_top = new tbf rate => $TBF_RATE || 100000;
62
63my $unused_bytes = 0;
64my $unused_last = time;
65
66sub unused_bandwidth {
67 $unused_bytes += $_[0];
68 if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) {
69 $unused_last = $NOW;
70 $unused_bytes = 0;
71 $queue_file->force_wake_next;
72 slog 1, "forced filetransfer due to unused bandwidth";
73 }
74}
31 75
32my @newcons; 76my @newcons;
33my @pool; 77my @pool;
34 78
35# one "execution thread" 79# one "execution thread"
36sub handler { 80sub handler {
37 while () { 81 while () {
38 my $new = pop @newcons;
39 if ($new) { 82 if (@newcons) {
40 eval { 83 eval {
41 conn->new(@$new)->handle; 84 conn->new(@{pop @newcons})->handle;
42 }; 85 };
43 slog 1, "$@" if $@ && !ref $@; 86 slog 1, "$@" if $@ && !ref $@;
87
88 $httpevent->broadcast; # only for testing, but doesn't matter much
89
44 $connections->up; 90 $connections->up;
45 } else { 91 } else {
46 last if @pool >= $MAX_POOL; 92 last if @pool >= $MAX_POOL;
47 push @pool, $Coro::current; 93 push @pool, $Coro::current;
48 schedule; 94 schedule;
49 } 95 }
50 } 96 }
97}
98
99sub listen_on {
100 my $listen = $_[0];
101
102 push @listen_sockets, $listen;
103
104 # the "main thread"
105 async {
106 slog 1, "accepting connections";
107 while () {
108 $connections->down;
109 push @newcons, [$listen->accept];
110 #slog 3, "accepted @$connections ".scalar(@pool);
111 if (@pool) {
112 (pop @pool)->ready;
113 } else {
114 async \&handler;
115 }
116 }
117 };
51} 118}
52 119
53my $http_port = new Coro::Socket 120my $http_port = new Coro::Socket
54 LocalAddr => $SERVER_HOST, 121 LocalAddr => $SERVER_HOST,
55 LocalPort => $SERVER_PORT, 122 LocalPort => $SERVER_PORT,
56 ReuseAddr => 1, 123 ReuseAddr => 1,
57 Listen => 50, 124 Listen => 50,
58 or die "unable to start server"; 125 or die "unable to start server";
59 126
60push @listen_sockets, $http_port; 127listen_on $http_port;
61 128
62# the "main thread" 129if ($SERVER_PORT2) {
63async { 130 my $http_port = new Coro::Socket
64 slog 1, "accepting connections"; 131 LocalAddr => $SERVER_HOST,
65 while () { 132 LocalPort => $SERVER_PORT2,
66 $connections->down; 133 ReuseAddr => 1,
67 push @newcons, [$http_port->accept]; 134 Listen => 50,
68 #slog 3, "accepted @$connections ".scalar(@pool); 135 or die "unable to start server";
69 $::NOW = time;
70 if (@pool) {
71 (pop @pool)->ready;
72 } else {
73 async \&handler;
74 }
75 136
76 } 137 listen_on $http_port;
77}; 138}
78 139
79package conn; 140package conn;
80 141
81use Socket; 142use Socket;
82use HTTP::Date; 143use HTTP::Date;
83use Convert::Scalar 'weaken'; 144use Convert::Scalar 'weaken';
84use Linux::AIO; 145use IO::AIO;
85 146
86Linux::AIO::min_parallel $::AIO_PARALLEL; 147IO::AIO::min_parallel $::AIO_PARALLEL;
87 148
88Event->io(fd => Linux::AIO::poll_fileno, 149Event->io (fd => IO::AIO::poll_fileno,
89 poll => 'r', async => 1, 150 poll => 'r', async => 1,
90 cb => \&Linux::AIO::poll_cb); 151 cb => \&IO::AIO::poll_cb);
91 152
92our %conn; # $conn{ip}{self} => connobj 153our %conn; # $conn{ip}{self} => connobj
93our %uri; # $uri{ip}{uri}{self} 154our %uri; # $uri{ip}{uri}{self}
94our %blocked; 155our %blocked;
95our %mimetype; 156our %mimetype;
… …
109 170
110read_mimetypes; 171read_mimetypes;
111 172
112sub new { 173sub new {
113 my $class = shift; 174 my $class = shift;
175 my $fh = shift;
114 my $peername = shift; 176 my $peername = shift;
115 my $fh = shift;
116 my $self = bless { fh => $fh }, $class; 177 my $self = bless { fh => $fh }, $class;
117 my (undef, $iaddr) = unpack_sockaddr_in $peername 178 my (undef, $iaddr) = unpack_sockaddr_in $peername
118 or $self->err(500, "unable to decode peername"); 179 or $self->err(500, "unable to decode peername");
119 180
181 $self->{remote_addr} =
120 $self->{remote_addr} = inet_ntoa $iaddr; 182 $self->{remote_id} = inet_ntoa $iaddr;
183
121 $self->{time} = $::NOW; 184 $self->{time} = $::NOW;
122 185
123 # enter ourselves into various lists 186 weaken ($Coro::current->{conn} = $self);
124 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
125 187
126 $::conns++; 188 $::conns++;
189 $::maxconns = $::conns if $::conns > $::maxconns;
127 190
128 $self; 191 $self;
129} 192}
130 193
131sub DESTROY { 194sub DESTROY {
132 my $self = shift; 195 #my $self = shift;
133
134 $::conns--; 196 $::conns--;
135
136 $self->eoconn;
137 delete $conn{$self->{remote_addr}}{$self*1};
138} 197}
139 198
140# end of connection 199sub prune_cache {
141sub eoconn { 200 my $hash = $_[0];
142 my $self = shift; 201
143 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 202 for (keys %$hash) {
203 if (ref $hash->{$_} eq HASH::) {
204 prune_cache($hash->{$_});
205 unless (scalar keys %{$hash->{$_}}) {
206 delete $hash->{$_};
207 $d2++;
208 }
209 }
210 }
144} 211}
212
213sub prune_caches {
214 prune_cache \%conn;
215 prune_cache \%uri;
216
217 for (keys %blocked) {
218 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
219 }
220}
221
222Event->timer(interval => 60, cb => \&prune_caches);
145 223
146sub slog { 224sub slog {
147 my $self = shift; 225 my $self = shift;
148 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 226 main::slog($_[0], "$self->{remote_id}> $_[1]");
149} 227}
150 228
151sub response { 229sub response {
152 my ($self, $code, $msg, $hdr, $content) = @_; 230 my ($self, $code, $msg, $hdr, $content) = @_;
153 my $res = "HTTP/1.1 $code $msg\015\012"; 231 my $res = "HTTP/1.1 $code $msg\015\012";
232 my $GZ = "";
154 233
155 $self->{h}{connection} ||= $hdr->{Connection}; 234 if (exists $hdr->{Connection}) {
235 if ($hdr->{Connection} =~ /close/) {
236 $self->{h}{connection} = "close"
237 }
238 } else {
239 if ($self->{version} < 1.1) {
240 if ($self->{h}{connection} =~ /keep-alive/i) {
241 $hdr->{Connection} = "Keep-Alive";
242 } else {
243 $self->{h}{connection} = "close"
244 }
245 }
246 }
156 247
157 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 248 if ($self->{method} ne "HEAD"
249 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
250 && 400 < length $content
251 && $hdr->{"Content-Length"} == length $content
252 && !exists $hdr->{"Content-Encoding"}
253 ) {
254 my $orig = length $content;
255 $hdr->{"Content-Encoding"} = "gzip";
256 $content = Compress::Zlib::memGzip(\$content);
257 $hdr->{"Content-Length"} = length $content;
258 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
259 }
260
261 $res .= "Date: $HTTP_NOW\015\012";
262 $res .= "Server: $::NAME\015\012";
158 263
159 while (my ($h, $v) = each %$hdr) { 264 while (my ($h, $v) = each %$hdr) {
160 $res .= "$h: $v\015\012" 265 $res .= "$h: $v\015\012"
161 } 266 }
162 $res .= "\015\012"; 267 $res .= "\015\012";
163 268
164 $res .= $content if defined $content and $self->{method} ne "HEAD"; 269 $res .= $content if defined $content and $self->{method} ne "HEAD";
165 270
166 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; 271 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
272 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
273 " \"$self->{h}{referer}\"\n";
167 274
168 print $accesslog $log if $accesslog; 275 print $::accesslog $log if $::accesslog;
169 print STDERR $log; 276 print STDERR $log;
170 277
171 $self->{written} += 278 $tbf_top->request(length $res, 1e6);
172 print {$self->{fh}} $res; 279 $self->{written} += print {$self->{fh}} $res;
173} 280}
174 281
175sub err { 282sub err {
176 my $self = shift; 283 my $self = shift;
177 my ($code, $msg, $hdr, $content) = @_; 284 my ($code, $msg, $hdr, $content) = @_;
178 285
179 unless (defined $content) { 286 unless (defined $content) {
180 $content = "$code $msg"; 287 $content = "$code $msg\n";
181 $hdr->{"Content-Type"} = "text/plain"; 288 $hdr->{"Content-Type"} = "text/plain";
182 $hdr->{"Content-Length"} = length $content; 289 $hdr->{"Content-Length"} = length $content;
183 } 290 }
184 $hdr->{"Connection"} = "close"; 291 $hdr->{"Connection"} = "close";
185 292
186 $self->response($code, $msg, $hdr, $content); 293 $self->response($code, $msg, $hdr, $content);
187 294
188 die bless {}, err::; 295 die bless {}, err::;
189} 296}
190 297
191sub err_blocked {
192 my $self = shift;
193 my $ip = $self->{remote_addr};
194 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
195
196 Coro::Event::do_timer(after => 20*rand);
197
198 $self->err(401, "too many connections",
199 {
200 "Content-Type" => "text/html",
201 "Retry-After" => $::BLOCKTIME,
202 "Warning" => "Please do NOT retry, you have been blocked",
203 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
204 "Connection" => "close",
205 },
206 <<EOF);
207<html>
208<head>
209<title>Too many connections</title>
210</head>
211<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
212
213<p>You have been blocked because you opened too many connections. You
214may retry at</p>
215
216 <p><blockquote>$time.</blockquote></p>
217
218<p>Until then, each new access will renew the block. You might want to have a
219look at the <a href="http://www.goof.com/pcg/marc/animefaq.html#connectionlimit">FAQ</a>.</p>
220
221</body></html>
222EOF
223}
224
225sub handle { 298sub handle {
226 my $self = shift; 299 my $self = shift;
227 my $fh = $self->{fh}; 300 my $fh = $self->{fh};
301
302 my $host;
228 303
229 $fh->timeout($::REQ_TIMEOUT); 304 $fh->timeout($::REQ_TIMEOUT);
230 while() { 305 while() {
231 $self->{reqs}++; 306 $self->{reqs}++;
232 307
… …
242 } 317 }
243 318
244 $self->{h} = {}; 319 $self->{h} = {};
245 320
246 $fh->timeout($::RES_TIMEOUT); 321 $fh->timeout($::RES_TIMEOUT);
247 my $ip = $self->{remote_addr};
248
249 if ($blocked{$ip}) {
250 $self->err_blocked($blocked{$ip})
251 if $blocked{$ip} > $::NOW;
252
253 delete $blocked{$ip};
254 }
255
256 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
257 $self->slog(2, "blocked ip $ip");
258 $self->err_blocked;
259 }
260 322
261 $req =~ /^(?:\015\012)? 323 $req =~ /^(?:\015\012)?
262 (GET|HEAD) \040+ 324 (GET|HEAD) \040+
263 ([^\040]+) \040+ 325 ([^\040]+) \040+
264 HTTP\/([0-9]+\.[0-9]+) 326 HTTP\/([0-9]+\.[0-9]+)
… …
277 my (%hdr, $h, $v); 339 my (%hdr, $h, $v);
278 340
279 $hdr{lc $1} .= ",$2" 341 $hdr{lc $1} .= ",$2"
280 while $req =~ /\G 342 while $req =~ /\G
281 ([^:\000-\040]+): 343 ([^:\000-\040]+):
282 [\008\040]* 344 [\011\040]*
283 ((?: [^\015\012]+ | \015\012[\008\040] )*) 345 ((?: [^\015\012]+ | \015\012[\011\040] )*)
284 \015\012 346 \015\012
285 /gxc; 347 /gxc;
286 348
287 $req =~ /\G\015\012$/ 349 $req =~ /\G\015\012$/
288 or $self->err(400, "bad request"); 350 or $self->err(400, "bad request");
289 351
290 $self->{h}{$h} = substr $v, 1 352 $self->{h}{$h} = substr $v, 1
291 while ($h, $v) = each %hdr; 353 while ($h, $v) = each %hdr;
292 } 354 }
293 355
356 # remote id should be unique per user
357 my $id = $self->{remote_addr};
358
359 if (exists $self->{h}{"client-ip"}) {
360 $id .= "[".$self->{h}{"client-ip"}."]";
361 } elsif (exists $self->{h}{"x-forwarded-for"}) {
362 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
363 }
364
365 $self->{remote_id} = $id;
366
367 weaken (local $conn{$id}{$self*1} = $self);
368
369 if ($blocked{$id}) {
370 $self->err_blocked
371 if $blocked{$id}[0] > $::NOW;
372
373 delete $blocked{$id};
374 }
375
376 # find out server name and port
377 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
378 $host = $1;
379 } else {
380 $host = $self->{h}{host};
381 }
382
383 if (defined $host) {
294 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 384 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
385 } else {
386 ($self->{server_port}, $host)
387 = unpack_sockaddr_in $self->{fh}->sockname
388 or $self->err(500, "unable to get socket name");
389 $host = inet_ntoa $host;
390 }
295 391
392 $self->{server_name} = $host;
393
296 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 394 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
297 395
298 eval { 396 eval {
299 $self->map_uri; 397 $self->map_uri;
300 $self->respond; 398 $self->respond;
301 }; 399 };
302 400
303 $self->eoconn;
304
305 die if $@ && !ref $@; 401 die if $@ && !ref $@;
306 402
307 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 403 last if $self->{h}{connection} =~ /close/i;
308 404
309 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); 405 $httpevent->broadcast;
406
310 $fh->timeout($::PER_TIMEOUT); 407 $fh->timeout($::PER_TIMEOUT);
311 } 408 }
409}
410
411sub block {
412 my $self = shift;
413
414 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
415 $self->slog(2, "blocked ip $self->{remote_id}");
416 $self->err_blocked;
312} 417}
313 418
314# uri => path mapping 419# uri => path mapping
315sub map_uri { 420sub map_uri {
316 my $self = shift; 421 my $self = shift;
317 my $host = $self->{h}{host} || "default"; 422 my $host = $self->{server_name};
318 my $uri = $self->{uri}; 423 my $uri = $self->{uri};
319 424
320 # some massaging, also makes it more secure 425 # some massaging, also makes it more secure
321 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 426 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
322 $uri =~ s%//+%/%g; 427 $uri =~ s%//+%/%g;
… …
332 $self->{path} = "$::DOCROOT/$host$uri"; 437 $self->{path} = "$::DOCROOT/$host$uri";
333 438
334 $self->access_check; 439 $self->access_check;
335} 440}
336 441
337sub server_address {
338 my $self = shift;
339 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
340 or $self->err(500, "unable to get socket name");
341 ((inet_ntoa $iaddr), $port);
342}
343
344sub server_host {
345 my $self = shift;
346 if (exists $self->{h}{host}) {
347 return $self->{h}{host};
348 } else {
349 return (($self->server_address)[0]);
350 }
351}
352
353sub server_hostport {
354 my $self = shift;
355 my ($host, $port);
356 if (exists $self->{h}{host}) {
357 ($host, $port) = ($self->{h}{host}, $self->{server_port});
358 } else {
359 ($host, $port) = $self->server_address;
360 }
361 $port = $port == 80 ? "" : ":$port";
362 $host.$port;
363}
364
365sub _cgi { 442sub _cgi {
366 my $self = shift; 443 my $self = shift;
367 my $path = shift; 444 my $path = shift;
368 my $fh; 445 my $fh;
369 446
370 # no two-way xxx supported 447 # no two-way xxx supported
371 if (0 == fork) { 448 if (0 == fork) {
372 open STDOUT, ">&".fileno($self->{fh}); 449 open STDOUT, ">&".fileno($self->{fh});
373 if (chdir $::DOCROOT) { 450 if (chdir $::DOCROOT) {
374 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 451 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
375 $ENV{HTTP_HOST} = $self->server_host; 452 $ENV{HTTP_HOST} = $self->{server_name};
376 $ENV{HTTP_PORT} = $self->{server_host}; 453 $ENV{HTTP_PORT} = $self->{server_port};
377 $ENV{SCRIPT_NAME} = $self->{name}; 454 $ENV{SCRIPT_NAME} = $self->{name};
378 exec $path; 455 exec $path;
379 } 456 }
380 Coro::State::_exit(0); 457 Coro::State::_exit(0);
381 } else { 458 } else {
459 die;
382 } 460 }
461}
462
463sub server_hostport {
464 $_[0]{server_port} == 80
465 ? $_[0]{server_name}
466 : "$_[0]{server_name}:$_[0]{server_port}";
383} 467}
384 468
385sub respond { 469sub respond {
386 my $self = shift; 470 my $self = shift;
387 my $path = $self->{path}; 471 my $path = $self->{path};
388 472
389 stat $path 473 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
390 or $self->err(404, "not found"); 474 if ($::internal{$1}) {
391 475 $::internal{$1}->($self);
392 $self->{stat} = [stat _];
393
394 # idiotic netscape sends idiotic headers AGAIN
395 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
396 ? str2time $1 : 0;
397
398 if (-d _ && -r _) {
399 # directory
400 if ($path !~ /\/$/) {
401 # create a redirect to get the trailing "/"
402 my $host = $self->server_hostport;
403 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
404 } else { 476 } else {
405 $ims < $self->{stat}[9] 477 $self->err(404, "not found");
478 }
479 } else {
480
481 stat $path
406 or $self->err(304, "not modified"); 482 or $self->err(404, "not found");
407 483
408 if (-r "$path/index.html") { 484 $self->{stat} = [stat _];
409 $self->{path} .= "/index.html"; 485
410 $self->handle_file; 486 # idiotic netscape sends idiotic headers AGAIN
487 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
488 ? str2time $1 : 0;
489
490 if (-d _ && -r _) {
491 # directory
492 if ($path !~ /\/$/) {
493 # create a redirect to get the trailing "/"
494 # we don't try to avoid the :80
495 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
411 } else { 496 } else {
497 $ims < $self->{stat}[9]
498 or $self->err(304, "not modified");
499
500 if (-r "$path/index.html") {
501 # replace directory "size" by index.html filesize
502 $self->{stat} = [stat ($self->{path} .= "/index.html")];
503 $self->handle_file($queue_index, $tbf_top);
504 } else {
412 $self->handle_dir; 505 $self->handle_dir;
413 } 506 }
414 } 507 }
415 } elsif (-f _ && -r _) { 508 } elsif (-f _ && -r _) {
416 -x _ and $self->err(403, "forbidden"); 509 -x _ and $self->err(403, "forbidden");
417 $self->handle_file; 510
511 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
512 my $timeout = $::NOW + 10;
513 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
514 if ($timeout < $::NOW) {
515 $self->block($::BLOCKTIME, "too many connections");
516 } else {
517 $httpevent->wait;
518 }
519 }
520 }
521
522 $self->handle_file($queue_file, $tbf_top);
418 } else { 523 } else {
419 $self->err(404, "not found"); 524 $self->err(404, "not found");
525 }
420 } 526 }
421} 527}
422 528
423sub handle_dir { 529sub handle_dir {
424 my $self = shift; 530 my $self = shift;
425 my $idx = $self->diridx; 531 my $idx = $self->diridx;
426 532
427 $self->response(200, "ok", 533 $self->response(200, "ok",
428 { 534 {
429 "Content-Type" => "text/html", 535 "Content-Type" => "text/html; charset=utf-8",
430 "Content-Length" => length $idx, 536 "Content-Length" => length $idx,
537 "Last-Modified" => time2str ($self->{stat}[9]),
431 }, 538 },
432 $idx); 539 $idx);
433} 540}
434 541
435sub handle_file { 542sub handle_file {
436 my $self = shift; 543 my ($self, $queue, $tbf) = @_;
437 my $length = -s _; 544 my $length = $self->{stat}[7];
438 my $hdr = { 545 my $hdr = {
439 "Last-Modified" => time2str ((stat _)[9]), 546 "Last-Modified" => time2str ((stat _)[9]),
547 "Accept-Ranges" => "bytes",
440 }; 548 };
441 549
442 my @code = (200, "ok"); 550 my @code = (200, "ok");
443 my ($l, $h); 551 my ($l, $h);
444 552
… …
454 } 562 }
455 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 563 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
456 } 564 }
457 $hdr->{"Content-Range"} = "bytes */$length"; 565 $hdr->{"Content-Range"} = "bytes */$length";
458 $hdr->{"Content-Length"} = $length; 566 $hdr->{"Content-Length"} = $length;
459 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
460 $self->err(416, "not satisfiable", $hdr, ""); 567 $self->err(416, "not satisfiable", $hdr, "");
461 568
462satisfiable: 569satisfiable:
463 # check for segmented downloads 570 # check for segmented downloads
464 if ($l && $::NO_SEGMENTED) { 571 if ($l && $::NO_SEGMENTED) {
572 my $timeout = $::NOW + 15;
465 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 573 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
466 $self->err(400, "segmented downloads are not allowed", 574 if ($timeout <= $::NOW) {
467 { "Content-Type" => "text/html", Connection => "close" }, <<EOF); 575 $self->block($::BLOCKTIME, "segmented downloads are forbidden");
468<html> 576 #$self->err_segmented_download;
469<head> 577 } else {
470<title>Segmented downloads are not allowed</title> 578 $httpevent->wait;
471</head> 579 }
472<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
473
474<p>Segmented downloads are not allowed on this server. Please refer to the
475<a href="http://www.goof.com/pcg/marc/animefaq.html#segmented_downloads">FAQ</a>.</p>
476
477</body></html>
478EOF
479EOF
480 } 580 }
481 } 581 }
482 582
483 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 583 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
484 @code = (206, "partial content"); 584 @code = (206, "partial content");
… …
494 $hdr->{"Content-Length"} = $length; 594 $hdr->{"Content-Length"} = $length;
495 595
496 $self->response(@code, $hdr, ""); 596 $self->response(@code, $hdr, "");
497 597
498 if ($self->{method} eq "GET") { 598 if ($self->{method} eq "GET") {
599 $self->{time} = $::NOW;
600 $self->{written} = 0;
601
602 my $current = $Coro::current;
603
499 my ($fh, $buf, $r); 604 my ($fh, $buf, $r);
500 my $current = $Coro::current; 605
501 open $fh, "<", $self->{path} 606 open $fh, "<", $self->{path}
502 or die "$self->{path}: late open failure ($!)"; 607 or die "$self->{path}: late open failure ($!)";
503 608
504 $h -= $l - 1; 609 $h -= $l - 1;
505 610
506 if (0) { 611 if (0) { # !AIO
507 if ($l) { 612 if ($l) {
508 sysseek $fh, $l, 0; 613 sysseek $fh, $l, 0;
509 } 614 }
510 } 615 }
616
617 my $transfer = $queue->start_transfer($h);
618 my $locked;
619 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
511 620
512 while ($h > 0) { 621 while ($h > 0) {
513 if (0) { 622 unless ($locked) {
514 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 623 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
624 $bufsize = $::BUFSIZE;
625 $self->{time} = $::NOW;
626 $self->{written} = 0;
627 }
628 }
629
630 if ($blocked{$self->{remote_id}}) {
631 $self->{h}{connection} = "close";
632 die bless {}, err::;
633 }
634
635 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), $buf, 0
515 or last; 636 or last;
516 } else { 637
517 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), 638 $tbf->request (length $buf);
518 $buf, 0, sub { 639 my $w = syswrite $self->{fh}, $buf
519 $r = $_[0];
520 $current->ready;
521 });
522 &Coro::schedule;
523 last unless $r;
524 }
525 my $w = $self->{fh}->syswrite($buf)
526 or last; 640 or last;
527 $::written += $w; 641 $::written += $w;
528 $self->{written} += $w; 642 $self->{written} += $w;
529 $l += $r; 643 $l += $r;
530 } 644 }
531 }
532 645
533 close $fh; 646 close $fh;
647 }
534} 648}
535 649
5361; 6501
651

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