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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 1.81 by root, Sat Dec 2 03:29:29 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
10# quite a bit faster than apache, ;) 17# quite a bit faster than apache, ;)
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
22our $accesslog;
23our $errorlog;
24
25our $NOW;
26our $HTTP_NOW;
27
28our $ERROR_LOG;
29our $ACCESS_LOG;
30
31Event->timer(interval => 1, hard => 1, cb => sub {
32 $NOW = time;
33 $HTTP_NOW = time2str $NOW;
34})->now;
35
36if ($ERROR_LOG) {
37 use IO::Handle;
38 open $errorlog, ">>$ERROR_LOG"
39 or die "$ERROR_LOG: $!";
40 $errorlog->autoflush(1);
41}
42
43if ($ACCESS_LOG) {
44 use IO::Handle;
45 open $accesslog, ">>$ACCESS_LOG"
46 or die "$ACCESS_LOG: $!";
47 $accesslog->autoflush(1);
48}
49
15sub slog { 50sub slog {
16 my $level = shift; 51 my $level = shift;
17 my $format = shift; 52 my $format = shift;
53 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
18 printf "---: $format\n", @_; 54 printf "$NOW: $format\n", @_;
55 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
19} 56}
20 57
21my $connections = new Coro::Semaphore $MAX_CONNECTS; 58our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
59our $httpevent = new Coro::Signal;
60
61our $queue_file = new transferqueue $MAX_TRANSFERS;
62our $queue_index = new transferqueue 10;
63
64our $tbf_top = new tbf rate => $TBF_RATE || 100000;
65
66my $unused_bytes = 0;
67my $unused_last = time;
68
69sub unused_bandwidth {
70 $unused_bytes += $_[0];
71 if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) {
72 $unused_last = $NOW;
73 $unused_bytes = 0;
74 $queue_file->force_wake_next;
75 slog 1, "forced filetransfer due to unused bandwidth";
76 }
77}
22 78
23my @newcons; 79my @newcons;
24my @pool; 80my @pool;
25 81
26# one "execution thread" 82# one "execution thread"
27sub handler { 83sub handler {
28 while () { 84 while () {
29 my $new = pop @newcons;
30 if ($new) { 85 if (@newcons) {
31 eval { 86 eval {
32 conn->new(@$new)->handle; 87 conn->new (@{pop @newcons})->handle;
33 }; 88 };
34 slog 1, "$@" if $@ && !ref $@; 89 slog 1, "$@" if $@ && !ref $@;
90
91 $httpevent->broadcast; # only for testing, but doesn't matter much
92
35 $connections->up; 93 $connections->up;
36 } else { 94 } else {
37 last if @pool >= $MAX_POOL; 95 last if @pool >= $MAX_POOL;
38 push @pool, $Coro::current; 96 push @pool, $Coro::current;
39 schedule; 97 schedule;
40 } 98 }
41 } 99 }
42} 100}
43 101
102sub listen_on {
103 my $listen = $_[0];
104
105 push @listen_sockets, $listen;
106
107 # the "main thread"
108 async {
109 slog 1, "accepting connections";
110 while () {
111 $connections->down;
112 push @newcons, [$listen->accept];
113 #slog 3, "accepted @$connections ".scalar(@pool);
114 if (@pool) {
115 (pop @pool)->ready;
116 } else {
117 async \&handler;
118 }
119 }
120 };
121}
122
44my $http_port = new Coro::Socket 123my $http_port = new Coro::Socket
45 LocalAddr => $SERVER_HOST, 124 LocalAddr => $SERVER_HOST,
46 LocalPort => $SERVER_PORT, 125 LocalPort => $SERVER_PORT,
47 ReuseAddr => 1, 126 ReuseAddr => 1,
48 Listen => 50, 127 Listen => 50,
49 or die "unable to start server"; 128 or die "unable to start server";
50 129
51push @listen_sockets, $http_port; 130listen_on $http_port;
52 131
53# the "main thread" 132if ($SERVER_PORT2) {
54async { 133 my $http_port = new Coro::Socket
55 slog 1, "accepting connections"; 134 LocalAddr => $SERVER_HOST,
56 while () { 135 LocalPort => $SERVER_PORT2,
57 $connections->down; 136 ReuseAddr => 1,
58 push @newcons, [$http_port->accept]; 137 Listen => 50,
59 #slog 3, "accepted @$connections ".scalar(@pool); 138 or die "unable to start server";
60 $::NOW = time;
61 if (@pool) {
62 (pop @pool)->ready;
63 } else {
64 async \&handler;
65 }
66 139
67 } 140 listen_on $http_port;
68}; 141}
69 142
70package conn; 143package conn;
144
145use strict;
146use bytes;
71 147
72use Socket; 148use Socket;
73use HTTP::Date; 149use HTTP::Date;
74use Convert::Scalar 'weaken'; 150use Convert::Scalar 'weaken';
75use Linux::AIO; 151use IO::AIO;
76 152
77Linux::AIO::min_parallel $::AIO_PARALLEL; 153IO::AIO::min_parallel $::AIO_PARALLEL;
78 154
79Event->io(fd => Linux::AIO::poll_fileno, 155Event->io (fd => IO::AIO::poll_fileno,
80 poll => 'r', async => 1, 156 poll => 'r', async => 1,
81 cb => \&Linux::AIO::poll_cb ); 157 cb => \&IO::AIO::poll_cb);
82 158
83our %conn; # $conn{ip}{fh} => connobj 159our %conn; # $conn{ip}{self} => connobj
160our %uri; # $uri{ip}{uri}{self}
84our %blocked; 161our %blocked;
85our %mimetype; 162our %mimetype;
86 163
87sub read_mimetypes { 164sub read_mimetypes {
88 local *M;
89 if (open M, "<mime_types") { 165 if (open my $fh, "<mime_types") {
90 while (<M>) { 166 while (<$fh>) {
91 if (/^([^#]\S+)\t+(\S+)$/) { 167 if (/^([^#]\S+)\t+(\S+)$/) {
92 $mimetype{lc $1} = $2; 168 $mimetype{lc $1} = $2;
93 } 169 }
94 } 170 }
95 } else { 171 } else {
… …
99 175
100read_mimetypes; 176read_mimetypes;
101 177
102sub new { 178sub new {
103 my $class = shift; 179 my $class = shift;
180 my $fh = shift;
104 my $peername = shift; 181 my $peername = shift;
105 my $fh = shift;
106 my $self = bless { fh => $fh }, $class; 182 my $self = bless { fh => $fh }, $class;
107 my (undef, $iaddr) = unpack_sockaddr_in $peername 183 my (undef, $iaddr) = unpack_sockaddr_in $peername
108 or $self->err(500, "unable to decode peername"); 184 or $self->err (500, "unable to decode peername");
109 185
186 $self->{remote_addr} =
110 $self->{remote_addr} = inet_ntoa $iaddr; 187 $self->{remote_id} = inet_ntoa $iaddr;
188
111 $self->{time} = $::NOW; 189 $self->{time} = $::NOW;
112 190
113 # enter ourselves into various lists 191 weaken ($Coro::current->{conn} = $self);
114 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
115 192
116 $::conns++; 193 $::conns++;
194 $::maxconns = $::conns if $::conns > $::maxconns;
117 195
118 $self; 196 $self
119} 197}
120 198
121sub DESTROY { 199sub DESTROY {
122 my $self = shift; 200 #my $self = shift;
123 201 close $self->{fh}; # workaround
124 $::conns--; 202 --$::conns;
125
126 delete $conn{$self->{remote_addr}}{$self*1};
127 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
128} 203}
204
205sub prune_cache {
206 my $hash = $_[0];
207
208 for (keys %$hash) {
209 if (ref $hash->{$_} eq HASH::) {
210 prune_cache($hash->{$_});
211 unless (scalar keys %{$hash->{$_}}) {
212 delete $hash->{$_};
213 }
214 }
215 }
216}
217
218sub prune_caches {
219 prune_cache \%conn;
220 prune_cache \%uri;
221
222 for (keys %blocked) {
223 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
224 }
225}
226
227Event->timer (interval => 60, cb => \&prune_caches);
129 228
130sub slog { 229sub slog {
131 my $self = shift; 230 my $self = shift;
132 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 231 main::slog($_[0], "$self->{remote_id}> $_[1]");
133} 232}
134 233
135sub response { 234sub response {
136 my ($self, $code, $msg, $hdr, $content) = @_; 235 my ($self, $code, $msg, $hdr, $content) = @_;
137 my $res = "HTTP/1.1 $code $msg\015\012"; 236 my $res = "HTTP/1.1 $code $msg\015\012";
237 my $GZ = "";
138 238
139 #$res .= "Connection: close\015\012"; 239 if (exists $hdr->{Connection}) {
140 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 240 if ($hdr->{Connection} =~ /close/) {
241 $self->{h}{connection} = "close"
242 }
243 } else {
244 if ($self->{version} < 1.1) {
245 if ($self->{h}{connection} =~ /keep-alive/i) {
246 $hdr->{Connection} = "Keep-Alive";
247 } else {
248 $self->{h}{connection} = "close"
249 }
250 }
251 }
252
253 if ($self->{method} ne "HEAD"
254 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
255 && 400 < length $content
256 && $hdr->{"Content-Length"} == length $content
257 && !exists $hdr->{"Content-Encoding"}
258 ) {
259 my $orig = length $content;
260 $hdr->{"Content-Encoding"} = "gzip";
261 $content = Compress::Zlib::memGzip(\$content);
262 $hdr->{"Content-Length"} = length $content;
263 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
264 }
265
266 $res .= "Date: $HTTP_NOW\015\012";
267 $res .= "Server: $::NAME\015\012";
141 268
142 while (my ($h, $v) = each %$hdr) { 269 while (my ($h, $v) = each %$hdr) {
143 $res .= "$h: $v\015\012" 270 $res .= "$h: $v\015\012"
144 } 271 }
145 $res .= "\015\012"; 272 $res .= "\015\012";
146 273
147 $res .= $content if defined $content and $self->{method} ne "HEAD"; 274 $res .= $content if defined $content and $self->{method} ne "HEAD";
148 275
149 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 276 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
277 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
278 " \"$self->{h}{referer}\"\n";
150 279
151 $self->{written} += 280 print $::accesslog $log if $::accesslog;
152 print {$self->{fh}} $res; 281 print STDERR $log;
282
283 $tbf_top->request(length $res, 1e6);
284 $self->{written} += print {$self->{fh}} $res;
153} 285}
154 286
155sub err { 287sub err {
156 my $self = shift; 288 my $self = shift;
157 my ($code, $msg, $hdr, $content) = @_; 289 my ($code, $msg, $hdr, $content) = @_;
158 290
159 unless (defined $content) { 291 unless (defined $content) {
160 $content = "$code $msg"; 292 $content = "$code $msg\n";
161 $hdr->{"Content-Type"} = "text/plain"; 293 $hdr->{"Content-Type"} = "text/plain";
162 $hdr->{"Content-Length"} = length $content; 294 $hdr->{"Content-Length"} = length $content;
163 } 295 }
164 $hdr->{"Connection"} = "close"; 296 $hdr->{"Connection"} = "close";
165 297
166 $self->response($code, $msg, $hdr, $content); 298 $self->response ($code, $msg, $hdr, $content);
167 299
168 die bless {}, err::; 300 die bless {}, err::
169}
170
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} 301}
195 302
196sub handle { 303sub handle {
197 my $self = shift; 304 my $self = shift;
198 my $fh = $self->{fh}; 305 my $fh = $self->{fh};
199 306
307 my $host;
308
200 $fh->timeout($::REQ_TIMEOUT); 309 $fh->timeout($::REQ_TIMEOUT);
201 while() { 310 while () {
202 $self->{reqs}++; 311 $self->{reqs}++;
203 312
204 # read request and parse first line 313 # read request and parse first line
205 my $req = $fh->readline("\015\012\015\012"); 314 my $req = $fh->readline("\015\012\015\012");
206 315
… …
213 } 322 }
214 323
215 $self->{h} = {}; 324 $self->{h} = {};
216 325
217 $fh->timeout($::RES_TIMEOUT); 326 $fh->timeout($::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 }
231 327
232 $req =~ /^(?:\015\012)? 328 $req =~ /^(?:\015\012)?
233 (GET|HEAD) \040+ 329 (GET|HEAD) \040+
234 ([^\040]+) \040+ 330 ([^\040]+) \040+
235 HTTP\/([0-9]+\.[0-9]+) 331 HTTP\/([0-9]+\.[0-9]+)
… …
238 334
239 $self->{method} = $1; 335 $self->{method} = $1;
240 $self->{uri} = $2; 336 $self->{uri} = $2;
241 $self->{version} = $3; 337 $self->{version} = $3;
242 338
243 $3 eq "1.0" or $3 eq "1.1" 339 $3 =~ /^1\./
244 or $self->err(506, "http protocol version $3 not supported"); 340 or $self->err(506, "http protocol version $3 not supported");
245 341
246 # parse headers 342 # parse headers
247 { 343 {
248 my (%hdr, $h, $v); 344 my (%hdr, $h, $v);
249 345
250 $hdr{lc $1} .= ",$2" 346 $hdr{lc $1} .= ",$2"
251 while $req =~ /\G 347 while $req =~ /\G
252 ([^:\000-\040]+): 348 ([^:\000-\040]+):
253 [\008\040]* 349 [\011\040]*
254 ((?: [^\015\012]+ | \015\012[\008\040] )*) 350 ((?: [^\015\012]+ | \015\012[\011\040] )*)
255 \015\012 351 \015\012
256 /gxc; 352 /gxc;
257 353
258 $req =~ /\G\015\012$/ 354 $req =~ /\G\015\012$/
259 or $self->err(400, "bad request"); 355 or $self->err(400, "bad request");
260 356
261 $self->{h}{$h} = substr $v, 1 357 $self->{h}{$h} = substr $v, 1
262 while ($h, $v) = each %hdr; 358 while ($h, $v) = each %hdr;
263 } 359 }
264 360
361 # remote id should be unique per user
362 my $id = $self->{remote_addr};
363
364 if (exists $self->{h}{"client-ip"}) {
365 $id .= "[".$self->{h}{"client-ip"}."]";
366 } elsif (exists $self->{h}{"x-forwarded-for"}) {
367 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
368 }
369
370 $self->{remote_id} = $id;
371
372 weaken (local $conn{$id}{$self*1} = $self);
373
374 if ($blocked{$id}) {
375 $self->err_blocked
376 if $blocked{$id}[0] > $::NOW;
377
378 delete $blocked{$id};
379 }
380
381 # find out server name and port
382 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
383 $host = $1;
384 } else {
385 $host = $self->{h}{host};
386 }
387
388 if (defined $host) {
265 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 389 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
390 } else {
391 ($self->{server_port}, $host)
392 = unpack_sockaddr_in $self->{fh}->sockname
393 or $self->err(500, "unable to get socket name");
394 $host = inet_ntoa $host;
395 }
266 396
397 $self->{server_name} = $host;
398
267 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 399 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
268 400
401 eval {
269 $self->map_uri; 402 $self->map_uri;
270 $self->respond; 403 $self->respond;
404 };
271 405
406 die if $@ && !ref $@;
407
272 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 408 last if $self->{h}{connection} =~ /close/i;
273 409
274 $self->slog(9, "persistant connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); 410 $httpevent->broadcast;
411
275 $fh->timeout($::PER_TIMEOUT); 412 $fh->timeout($::PER_TIMEOUT);
276 } 413 }
414}
415
416sub block {
417 my $self = shift;
418
419 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
420 $self->slog(2, "blocked ip $self->{remote_id}");
421 $self->err_blocked;
277} 422}
278 423
279# uri => path mapping 424# uri => path mapping
280sub map_uri { 425sub map_uri {
281 my $self = shift; 426 my $self = shift;
282 my $host = $self->{h}{host} || "default"; 427 my $host = $self->{server_name};
283 my $uri = $self->{uri}; 428 my $uri = $self->{uri};
284 429
285 # some massaging, also makes it more secure 430 # some massaging, also makes it more secure
286 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 431 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
287 $uri =~ s%//+%/%g; 432 $uri =~ s%//+%/%g;
… …
297 $self->{path} = "$::DOCROOT/$host$uri"; 442 $self->{path} = "$::DOCROOT/$host$uri";
298 443
299 $self->access_check; 444 $self->access_check;
300} 445}
301 446
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 { 447sub _cgi {
331 my $self = shift; 448 my $self = shift;
332 my $path = shift; 449 my $path = shift;
333 my $fh; 450 my $fh;
334 451
335 # no two-way xxx supported 452 # no two-way xxx supported
336 if (0 == fork) { 453 if (0 == fork) {
337 open STDOUT, ">&".fileno($self->{fh}); 454 open STDOUT, ">&".fileno($self->{fh});
338 if (chdir $::DOCROOT) { 455 if (chdir $::DOCROOT) {
339 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 456 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
340 $ENV{HTTP_HOST} = $self->server_host; 457 $ENV{HTTP_HOST} = $self->{server_name};
341 $ENV{HTTP_PORT} = $self->{server_host}; 458 $ENV{HTTP_PORT} = $self->{server_port};
342 $ENV{SCRIPT_NAME} = $self->{name}; 459 $ENV{SCRIPT_NAME} = $self->{name};
343 exec $path; 460 exec $path;
344 } 461 }
345 Coro::State::_exit(0); 462 Coro::State::_exit(0);
346 } else { 463 } else {
464 die;
347 } 465 }
466}
467
468sub server_hostport {
469 $_[0]{server_port} == 80
470 ? $_[0]{server_name}
471 : "$_[0]{server_name}:$_[0]{server_port}";
348} 472}
349 473
350sub respond { 474sub respond {
351 my $self = shift; 475 my $self = shift;
352 my $path = $self->{path}; 476 my $path = $self->{path};
353 477
354 stat $path 478 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
355 or $self->err(404, "not found"); 479 if ($::internal{$1}) {
356 480 $::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 { 481 } else {
482 $self->err (404, "not found");
483 }
484 } else {
485
486 stat $path
487 or $self->err (404, "not found");
488
489 $self->{stat} = [stat _];
490
491 # idiotic netscape sends idiotic headers AGAIN
492 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
493 ? str2time $1 : 0;
494
495 if (-d _ && -r _) {
496 # directory
497 if ($path !~ /\/$/) {
498 # create a redirect to get the trailing "/"
499 # we don't try to avoid the :80
500 $self->err (301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
501 } else {
370 $ims < $self->{stat}[9] 502 $ims < $self->{stat}[9]
371 or $self->err(304, "not modified"); 503 or $self->err (304, "not modified");
372 504
373 if ($self->{method} eq "GET") {
374 if (-r "$path/index.html") { 505 if (-r "$path/index.html") {
506 # replace directory "size" by index.html filesize
375 $self->{path} .= "/index.html"; 507 $self->{stat} = [stat ($self->{path} .= "/index.html")];
376 $self->handle_file; 508 $self->handle_file ($queue_index, $tbf_top);
377 } else { 509 } else {
378 $self->handle_dir; 510 $self->handle_dir;
379 } 511 }
380 } 512 }
381 }
382 } elsif (-f _ && -r _) { 513 } elsif (-f _ && -r _) {
383 -x _ and $self->err(403, "forbidden"); 514 -x _ and $self->err (403, "forbidden");
384 $self->handle_file; 515
516 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
517 my $timeout = $::NOW + 10;
518 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
519 if ($timeout < $::NOW) {
520 $self->block($::BLOCKTIME, "too many connections");
521 } else {
522 $httpevent->wait;
523 }
524 }
525 }
526
527 $self->handle_file ($queue_file, $tbf_top);
385 } else { 528 } else {
386 $self->err(404, "not found"); 529 $self->err (404, "not found");
530 }
387 } 531 }
388} 532}
389 533
390sub handle_dir { 534sub handle_dir {
391 my $self = shift; 535 my $self = shift;
392 my $idx = $self->diridx; 536 my $idx = $self->diridx;
393 537
394 $self->response(200, "ok", 538 $self->response (200, "ok",
395 { 539 {
396 "Content-Type" => "text/html", 540 "Content-Type" => "text/html; charset=utf-8",
397 "Content-Length" => length $idx, 541 "Content-Length" => length $idx,
542 "Last-Modified" => time2str ($self->{stat}[9]),
398 }, 543 },
399 $idx); 544 $idx);
400} 545}
401 546
402sub handle_file { 547sub handle_file {
403 my $self = shift; 548 my ($self, $queue, $tbf) = @_;
404 my $length = -s _; 549 my $length = $self->{stat}[7];
405 my $hdr = { 550 my $hdr = {
406 "Last-Modified" => time2str ((stat _)[9]), 551 "Last-Modified" => time2str ((stat _)[9]),
552 "Accept-Ranges" => "bytes",
407 }; 553 };
408 554
409 my @code = (200, "ok"); 555 my @code = (200, "ok");
410 my ($l, $h); 556 my ($l, $h);
411 557
… …
417 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 563 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
418 } else { 564 } else {
419 ($l, $h) = (0, $length - 1); 565 ($l, $h) = (0, $length - 1);
420 goto ignore; 566 goto ignore;
421 } 567 }
422 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 568 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
423 } 569 }
424 $hdr->{"Content-Range"} = "bytes */$length"; 570 $hdr->{"Content-Range"} = "bytes */$length";
571 $hdr->{"Content-Length"} = $length;
425 $self->err(416, "not satisfiable", $hdr); 572 $self->err (416, "not satisfiable", $hdr, "");
426 573
427satisfiable: 574satisfiable:
428 # check for segmented downloads 575 # check for segmented downloads
429 if ($l && $::NO_SEGMENTED) { 576 if ($l && $::NO_SEGMENTED) {
577 my $timeout = $::NOW + 15;
430 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 578 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
431 Coro::Event::do_timer(after => 15); 579 if ($timeout <= $::NOW) {
432 580 $self->block ($::BLOCKTIME, "segmented downloads are forbidden");
433 $self->err(400, "segmented downloads are not allowed"); 581 #$self->err_segmented_download;
582 } else {
583 $httpevent->wait;
584 }
434 } 585 }
435 } 586 }
436 587
437 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 588 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
438 @code = (206, "partial content"); 589 @code = (206, "partial content");
… …
445 596
446 $self->{path} =~ /\.([^.]+)$/; 597 $self->{path} =~ /\.([^.]+)$/;
447 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; 598 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
448 $hdr->{"Content-Length"} = $length; 599 $hdr->{"Content-Length"} = $length;
449 600
450 $self->response(@code, $hdr, ""); 601 $self->response (@code, $hdr, "");
451 602
452 if ($self->{method} eq "GET") { 603 if ($self->{method} eq "GET") {
453 my ($fh, $buf, $r); 604 $self->{time} = $::NOW;
454 my $current = $Coro::current; 605 $self->{written} = 0;
606
455 open $fh, "<", $self->{path} 607 open my $fh, "<", $self->{path}
456 or die "$self->{path}: late open failure ($!)"; 608 or die "$self->{path}: late open failure ($!)";
457 609
458 $h -= $l - 1; 610 $h -= $l - 1;
459 611
612 my $transfer = $queue->start_transfer ($h);
613 my $locked;
614 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
615
460 while ($h > 0) { 616 while ($h > 0) {
461 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), 617 unless ($locked) {
462 $buf, 0, sub { 618 if ($locked ||= $transfer->try ($::WAIT_INTERVAL)) {
463 $r = $_[0]; 619 $bufsize = $::BUFSIZE;
464 $current->ready; 620 $self->{time} = $::NOW;
621 $self->{written} = 0;
465 }); 622 }
466 &Coro::schedule; 623 }
467 last unless $r; 624
468 my $w = $self->{fh}->syswrite($buf) 625 if ($blocked{$self->{remote_id}}) {
626 $self->{h}{connection} = "close";
627 die bless {}, err::;
628 }
629
630 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0
631 or last;
632
633 $tbf->request (length $buf);
634 my $w = syswrite $self->{fh}, $buf
469 or last; 635 or last;
470 $::written += $w; 636 $::written += $w;
471 $self->{written} += $w; 637 $self->{written} += $w;
472 $l += $r; 638 $l += $w;
473 } 639 }
474 }
475 640
476 close $fh; 641 close $fh;
642 }
477} 643}
478 644
4791; 6451
646

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