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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.5 by root, Fri Aug 10 15:58:04 2001 UTC vs.
Revision 1.85 by root, Mon Feb 18 17:48:00 2008 UTC

1use Coro; 1use Coro;
2use Coro::Semaphore; 2use Coro::Semaphore;
3use Coro::Event; 3use Coro::EV;
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
31our $update_time = EV::periodic 0, 1, undef, sub {
32 $NOW = time;
33 $HTTP_NOW = time2str $NOW;
34};
35$update_time->invoke;
36
37if ($ERROR_LOG) {
38 use IO::Handle;
39 open $errorlog, ">>$ERROR_LOG"
40 or die "$ERROR_LOG: $!";
41 $errorlog->autoflush(1);
42}
43
44if ($ACCESS_LOG) {
45 use IO::Handle;
46 open $accesslog, ">>$ACCESS_LOG"
47 or die "$ACCESS_LOG: $!";
48 $accesslog->autoflush(1);
49}
50
15sub slog { 51sub slog {
16 my $level = shift; 52 my $level = shift;
17 my $format = shift; 53 my $format = shift;
54 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
18 printf "---: $format\n", @_; 55 printf "$NOW: $format\n", @_;
56 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
19} 57}
20 58
21my $connections = new Coro::Semaphore $MAX_CONNECTS; 59our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
60our $httpevent = new Coro::Signal;
22 61
23my @fh; 62our $queue_file = new transferqueue $MAX_TRANSFERS;
63our $queue_index = new transferqueue 10;
64
65our $tbf_top = new tbf rate => $TBF_RATE || 100000;
66
67my $unused_bytes = 0;
68my $unused_last = time;
69
70sub unused_bandwidth {
71 $unused_bytes += $_[0];
72 if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) {
73 $unused_last = $NOW;
74 $unused_bytes = 0;
75 $queue_file->force_wake_next;
76 slog 1, "forced filetransfer due to unused bandwidth";
77 }
78}
79
80my @newcons;
24my @pool; 81my @pool;
25 82
26# one "execution thread" 83# one "execution thread"
27sub handler { 84sub handler {
28 while () { 85 while () {
29 my $fh = pop @fh; 86 if (@newcons) {
30 if ($fh) {
31 eval { 87 eval {
32 conn->new($fh)->handle; 88 conn->new (@{pop @newcons})->handle;
33 }; 89 };
34 close $fh;
35 slog 1, "$@" if $@ && !ref $@; 90 slog 1, "$@" if $@ && !ref $@;
91
92 $httpevent->broadcast; # only for testing, but doesn't matter much
93
36 $connections->up; 94 $connections->up;
37 } else { 95 } else {
38 last if @pool >= $MAX_POOL; 96 last if @pool >= $MAX_POOL;
39 push @pool, $Coro::current; 97 push @pool, $Coro::current;
40 schedule; 98 schedule;
41 } 99 }
42 } 100 }
43} 101}
44 102
103sub listen_on {
104 my $listen = $_[0];
105
106 push @listen_sockets, $listen;
107
108 # the "main thread"
109 async {
110 slog 1, "accepting connections";
111 while () {
112 $connections->down;
113 push @newcons, [$listen->accept];
114 #slog 3, "accepted @$connections ".scalar(@pool);
115 if (@pool) {
116 (pop @pool)->ready;
117 } else {
118 async \&handler;
119 }
120 }
121 };
122}
123
45my $http_port = new Coro::Socket 124my $http_port = new Coro::Socket
46 LocalAddr => $SERVER_HOST, 125 LocalAddr => $SERVER_HOST,
47 LocalPort => $SERVER_PORT, 126 LocalPort => $SERVER_PORT,
48 ReuseAddr => 1, 127 ReuseAddr => 1,
49 Listen => 1, 128 Listen => 50,
50 or die "unable to start server"; 129 or die "unable to start server";
51 130
52push @listen_sockets, $http_port; 131listen_on $http_port;
53 132
54# the "main thread" 133if ($SERVER_PORT2) {
55async { 134 my $http_port = new Coro::Socket
56 slog 1, "accepting connections"; 135 LocalAddr => $SERVER_HOST,
57 while () { 136 LocalPort => $SERVER_PORT2,
58 $connections->down; 137 ReuseAddr => 1,
59 push @fh, $http_port->accept; 138 Listen => 50,
60 #slog 3, "accepted @$connections ".scalar(@pool); 139 or die "unable to start server";
61 $::NOW = time;
62 if (@pool) {
63 (pop @pool)->ready;
64 } else {
65 async \&handler;
66 }
67 140
68 } 141 listen_on $http_port;
69}; 142}
70 143
71package conn; 144package conn;
145
146use strict;
147use bytes;
72 148
73use Socket; 149use Socket;
74use HTTP::Date; 150use HTTP::Date;
75use Convert::Scalar 'weaken'; 151use Convert::Scalar 'weaken';
152use IO::AIO;
76 153
154IO::AIO::min_parallel $::AIO_PARALLEL;
155
156our $AIO_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
157
77our %conn; # $conn{ip}{fh} => connobj 158our %conn; # $conn{ip}{self} => connobj
159our %uri; # $uri{ip}{uri}{self}
78our %blocked; 160our %blocked;
161our %mimetype;
162
163sub read_mimetypes {
164 if (open my $fh, "<mime_types") {
165 while (<$fh>) {
166 if (/^([^#]\S+)\t+(\S+)$/) {
167 $mimetype{lc $1} = $2;
168 }
169 }
170 } else {
171 print "cannot open mime_types\n";
172 }
173}
174
175read_mimetypes;
79 176
80sub new { 177sub new {
81 my $class = shift; 178 my $class = shift;
82 my $fh = shift; 179 my $fh = shift;
180 my $peername = shift;
83 my $self = bless { fh => $fh }, $class; 181 my $self = bless { fh => $fh }, $class;
84 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 182 my (undef, $iaddr) = unpack_sockaddr_in $peername
85 or $self->err(500, "unable to get peername"); 183 or $self->err (500, "unable to decode peername");
184
185 $self->{remote_addr} =
86 $self->{remote_addr} = inet_ntoa $iaddr; 186 $self->{remote_id} = inet_ntoa $iaddr;
87 187
88 # enter ourselves into various lists 188 $self->{time} = $::NOW;
89 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
90 189
190 weaken ($Coro::current->{conn} = $self);
191
192 ++$::conns;
193 $::maxconns = $::conns if $::conns > $::maxconns;
194
91 $self; 195 $self
92} 196}
93 197
94sub DESTROY { 198sub DESTROY {
95 my $self = shift; 199 my $self = shift;
96 delete $conn{$self->{remote_addr}}{$self*1}; 200
97 delete $uri{$self->{uri}}{$self*1}; 201 --$::conns;
98} 202}
203
204sub prune_cache {
205 my $hash = $_[0];
206
207 for (keys %$hash) {
208 if (ref $hash->{$_} eq HASH::) {
209 prune_cache($hash->{$_});
210 unless (scalar keys %{$hash->{$_}}) {
211 delete $hash->{$_};
212 }
213 }
214 }
215}
216
217sub prune_caches {
218 prune_cache \%conn;
219 prune_cache \%uri;
220
221 for (keys %blocked) {
222 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
223 }
224}
225
226our $PRUNE_WATCHER = EV::timer 60, 60, \&prune_caches;
99 227
100sub slog { 228sub slog {
101 my $self = shift; 229 my $self = shift;
102 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 230 main::slog($_[0], "$self->{remote_id}> $_[1]");
103} 231}
104 232
105sub response { 233sub response {
106 my ($self, $code, $msg, $hdr, $content) = @_; 234 my ($self, $code, $msg, $hdr, $content) = @_;
107 my $res = "HTTP/1.0 $code $msg\015\012"; 235 my $res = "HTTP/1.1 $code $msg\015\012";
236 my $GZ = "";
108 237
109 $res .= "Connection: close\015\012"; 238 if (exists $hdr->{Connection}) {
110 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 239 if ($hdr->{Connection} =~ /close/) {
240 $self->{h}{connection} = "close"
241 }
242 } else {
243 if ($self->{version} < 1.1) {
244 if ($self->{h}{connection} =~ /keep-alive/i) {
245 $hdr->{Connection} = "Keep-Alive";
246 } else {
247 $self->{h}{connection} = "close"
248 }
249 }
250 }
251
252 if ($self->{method} ne "HEAD"
253 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
254 && 400 < length $content
255 && $hdr->{"Content-Length"} == length $content
256 && !exists $hdr->{"Content-Encoding"}
257 ) {
258 my $orig = length $content;
259 $hdr->{"Content-Encoding"} = "gzip";
260 $content = Compress::Zlib::memGzip(\$content);
261 $hdr->{"Content-Length"} = length $content;
262 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
263 }
264
265 $res .= "Date: $HTTP_NOW\015\012";
266 $res .= "Server: $::NAME\015\012";
111 267
112 while (my ($h, $v) = each %$hdr) { 268 while (my ($h, $v) = each %$hdr) {
113 $res .= "$h: $v\015\012" 269 $res .= "$h: $v\015\012"
114 } 270 }
271 $res .= "\015\012";
115 272
116 $res .= "\015\012$content" if defined $content; 273 $res .= $content if defined $content and $self->{method} ne "HEAD";
117 274
118 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 275 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
276 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
277 " \"$self->{h}{referer}\"\n";
119 278
120 print {$self->{fh}} $res; 279 print $::accesslog $log if $::accesslog;
280 print STDERR $log;
281
282 $tbf_top->request(length $res, 1e6);
283 $self->{written} += print {$self->{fh}} $res;
121} 284}
122 285
123sub err { 286sub err {
124 my $self = shift; 287 my $self = shift;
125 my ($code, $msg, $hdr, $content) = @_; 288 my ($code, $msg, $hdr, $content) = @_;
126 289
127 unless (defined $content) { 290 unless (defined $content) {
128 $content = "$code $msg"; 291 $content = "$code $msg\n";
129 $hdr->{"Content-Type"} = "text/plain"; 292 $hdr->{"Content-Type"} = "text/plain";
130 $hdr->{"Content-Length"} = length $content; 293 $hdr->{"Content-Length"} = length $content;
131 } 294 }
295 $hdr->{"Connection"} = "close";
132 296
133 $self->response($code, $msg, $hdr, $content); 297 $self->response ($code, $msg, $hdr, $content);
134 298
135 die bless {}, err::; 299 die bless {}, err::
136}
137
138sub err_blocked {
139 my $self = shift;
140 my $ip = $self->{remote_addr};
141 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
142 $self->err(403, "too many connections",
143 {
144 "Content-Type" => "text/html",
145 "Retry-After" => $::BLOCKTIME
146 },
147 <<EOF);
148<html><p>
149You have been blocked because you opened too many connections. You
150may retry at</p>
151
152 <p><blockquote>$time.</blockquote></p>
153
154<p>Until then, each new access will renew the block. You might want to have a
155look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
156</html>
157EOF
158} 300}
159 301
160sub handle { 302sub handle {
161 my $self = shift; 303 my $self = shift;
162 my $fh = $self->{fh}; 304 my $fh = $self->{fh};
163 305
306 my $host;
307
308 $fh->timeout($::REQ_TIMEOUT);
164 #while() { 309 while () {
310 $self->{reqs}++;
311
312 # read request and parse first line
313 my $req = $fh->readline("\015\012\015\012");
314
315 unless (defined $req) {
316 if (exists $self->{version}) {
317 last;
318 } else {
319 $self->err(408, "request timeout");
320 }
321 }
322
165 $self->{h} = {}; 323 $self->{h} = {};
166 324
167 # read request and parse first line
168 $fh->timeout($::REQ_TIMEOUT);
169 my $req = $fh->readline("\015\012\015\012");
170 $fh->timeout($::RES_TIMEOUT); 325 $fh->timeout($::RES_TIMEOUT);
171
172 defined $req or
173 $self->err(408, "request timeout");
174
175 my $ip = $self->{remote_addr};
176
177 if ($blocked{$ip}) {
178 $self->err_blocked($blocked{$ip})
179 if $blocked{$ip} > $::NOW;
180
181 delete $blocked{$ip};
182 }
183
184 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
185 $self->slog("blocked ip $ip");
186 $self->err_blocked;
187 }
188 326
189 $req =~ /^(?:\015\012)? 327 $req =~ /^(?:\015\012)?
190 (GET|HEAD) \040+ 328 (GET|HEAD) \040+
191 ([^\040]+) \040+ 329 ([^\040]+) \040+
192 HTTP\/([0-9]+\.[0-9]+) 330 HTTP\/([0-9]+\.[0-9]+)
193 \015\012/gx 331 \015\012/gx
194 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 332 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
195
196 $2 ne "1.0"
197 or $self->err(506, "http protocol version not supported");
198 333
199 $self->{method} = $1; 334 $self->{method} = $1;
200 $self->{uri} = $2; 335 $self->{uri} = $2;
336 $self->{version} = $3;
337
338 $3 =~ /^1\./
339 or $self->err(506, "http protocol version $3 not supported");
201 340
202 # parse headers 341 # parse headers
203 { 342 {
204 my (%hdr, $h, $v); 343 my (%hdr, $h, $v);
205 344
206 $hdr{lc $1} .= ",$2" 345 $hdr{lc $1} .= ",$2"
207 while $req =~ /\G 346 while $req =~ /\G
208 ([^:\000-\040]+): 347 ([^:\000-\040]+):
209 [\008\040]* 348 [\011\040]*
210 ((?: [^\015\012]+ | \015\012[\008\040] )*) 349 ((?: [^\015\012]+ | \015\012[\011\040] )*)
211 \015\012 350 \015\012
212 /gxc; 351 /gxc;
213 352
214 $req =~ /\G\015\012$/ 353 $req =~ /\G\015\012$/
215 or $self->err(400, "bad request"); 354 or $self->err(400, "bad request");
216 355
217 $self->{h}{$h} = substr $v, 1 356 $self->{h}{$h} = substr $v, 1
218 while ($h, $v) = each %hdr; 357 while ($h, $v) = each %hdr;
219 } 358 }
220 359
360 # remote id should be unique per user
361 my $id = $self->{remote_addr};
362
363 if (exists $self->{h}{"client-ip"}) {
364 $id .= "[".$self->{h}{"client-ip"}."]";
365 } elsif (exists $self->{h}{"x-forwarded-for"}) {
366 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
367 }
368
369 $self->{remote_id} = $id;
370
371 weaken (local $conn{$id}{$self*1} = $self);
372
373 if ($blocked{$id}) {
374 $self->err_blocked
375 if $blocked{$id}[0] > $::NOW;
376
377 delete $blocked{$id};
378 }
379
380 # find out server name and port
381 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
382 $host = $1;
383 } else {
384 $host = $self->{h}{host};
385 }
386
387 if (defined $host) {
221 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 388 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
389 } else {
390 ($self->{server_port}, $host)
391 = unpack_sockaddr_in $self->{fh}->sockname
392 or $self->err(500, "unable to get socket name");
393 $host = inet_ntoa $host;
394 }
222 395
396 $self->{server_name} = $host;
397
223 weaken ($uri{$self->{uri}}{$self*1} = $self); 398 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
224 399
400 eval {
225 $self->map_uri; 401 $self->map_uri;
226 $self->respond; 402 $self->respond;
403 };
404
405 die if $@ && !ref $@;
406
407 last if $self->{h}{connection} =~ /close/i;
408
409 $httpevent->broadcast;
410
411 $fh->timeout($::PER_TIMEOUT);
227 #} 412 }
413}
414
415sub block {
416 my $self = shift;
417
418 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
419 $self->slog(2, "blocked ip $self->{remote_id}");
420 $self->err_blocked;
228} 421}
229 422
230# uri => path mapping 423# uri => path mapping
231sub map_uri { 424sub map_uri {
232 my $self = shift; 425 my $self = shift;
233 my $host = $self->{h}{host} || "default"; 426 my $host = $self->{server_name};
234 my $uri = $self->{uri}; 427 my $uri = $self->{uri};
428
429 $host =~ /[\/\\]/
430 and $self->err(400, "bad request");
235 431
236 # some massaging, also makes it more secure 432 # some massaging, also makes it more secure
237 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 433 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
238 $uri =~ s%//+%/%g; 434 $uri =~ s%//+%/%g;
239 $uri =~ s%/\.(?=/|$)%%g; 435 $uri =~ s%/\.(?=/|$)%%g;
… …
244 440
245 $self->{name} = $uri; 441 $self->{name} = $uri;
246 442
247 # now do the path mapping 443 # now do the path mapping
248 $self->{path} = "$::DOCROOT/$host$uri"; 444 $self->{path} = "$::DOCROOT/$host$uri";
249}
250 445
251sub server_address { 446 $self->access_check;
252 my $self = shift;
253 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
254 or $self->err(500, "unable to get socket name");
255 ((inet_ntoa $iaddr), $port);
256}
257
258sub server_host {
259 my $self = shift;
260 if (exists $self->{h}{host}) {
261 return $self->{h}{host};
262 } else {
263 return (($self->server_address)[0]);
264 }
265}
266
267sub server_hostport {
268 my $self = shift;
269 my ($host, $port);
270 if (exists $self->{h}{host}) {
271 ($host, $port) = ($self->{h}{host}, $self->{server_port});
272 } else {
273 ($host, $port) = $self->server_address;
274 }
275 $port = $port == 80 ? "" : ":$port";
276 $host.$port;
277} 447}
278 448
279sub _cgi { 449sub _cgi {
280 my $self = shift; 450 my $self = shift;
281 my $path = shift; 451 my $path = shift;
… …
284 # no two-way xxx supported 454 # no two-way xxx supported
285 if (0 == fork) { 455 if (0 == fork) {
286 open STDOUT, ">&".fileno($self->{fh}); 456 open STDOUT, ">&".fileno($self->{fh});
287 if (chdir $::DOCROOT) { 457 if (chdir $::DOCROOT) {
288 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 458 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
289 $ENV{HTTP_HOST} = $self->server_host; 459 $ENV{HTTP_HOST} = $self->{server_name};
290 $ENV{HTTP_PORT} = $self->{server_host}; 460 $ENV{HTTP_PORT} = $self->{server_port};
291 $ENV{SCRIPT_NAME} = $self->{name}; 461 $ENV{SCRIPT_NAME} = $self->{name};
292 exec $::INDEXPROG; 462 exec $path;
293 } 463 }
294 Coro::State::_exit(0); 464 Coro::State::_exit(0);
295 } else { 465 } else {
466 die;
296 } 467 }
468}
469
470sub server_hostport {
471 $_[0]{server_port} == 80
472 ? $_[0]{server_name}
473 : "$_[0]{server_name}:$_[0]{server_port}";
297} 474}
298 475
299sub respond { 476sub respond {
300 my $self = shift; 477 my $self = shift;
301 my $path = $self->{path}; 478 my $path = $self->{path};
302 479
303 stat $path 480 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
304 or $self->err(404, "not found"); 481 if ($::internal{$1}) {
305 482 $::internal{$1}->($self);
306 # idiotic netscape sends idiotic headers AGAIN
307 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
308 ? str2time $1 : 0;
309
310 if (-d _ && -r _) {
311 # directory
312 if ($path !~ /\/$/) {
313 # create a redirect to get the trailing "/"
314 my $host = $self->server_hostport;
315 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
316 } else { 483 } else {
317 $ims < (stat _)[9] 484 $self->err (404, "not found");
485 }
486 } else {
487
488 stat $path
489 or $self->err (404, "not found");
490
491 $self->{stat} = [stat _];
492
493 # idiotic netscape sends idiotic headers AGAIN
494 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
495 ? str2time $1 : 0;
496
497 if (-d _ && -r _) {
498 # directory
499 if ($path !~ /\/$/) {
500 # create a redirect to get the trailing "/"
501 # we don't try to avoid the :80
502 $self->err (301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
503 } else {
504 $ims < $self->{stat}[9]
318 or $self->err(304, "not modified"); 505 or $self->err (304, "not modified");
319 506
320 if ($self->{method} eq "GET") {
321 if (-r "$path/index.html") { 507 if (-r "$path/index.html") {
508 # replace directory "size" by index.html filesize
322 $self->{path} .= "/index.html"; 509 $self->{stat} = [stat ($self->{path} .= "/index.html")];
323 $self->handle_file; 510 $self->handle_file ($queue_index, $tbf_top);
324 } else { 511 } else {
325 $self->handle_dir; 512 $self->handle_dir;
326 } 513 }
327 } 514 }
328 }
329 } elsif (-f _ && -r _) { 515 } elsif (-f _ && -r _) {
330 -x _ and $self->err(403, "forbidden"); 516 -x _ and $self->err (403, "forbidden");
331 $self->handle_file; 517
518 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
519 my $timeout = $::NOW + 10;
520 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
521 if ($timeout < $::NOW) {
522 $self->block($::BLOCKTIME, "too many connections");
523 } else {
524 $httpevent->wait;
525 }
526 }
527 }
528
529 $self->handle_file ($queue_file, $tbf_top);
332 } else { 530 } else {
333 $self->err(404, "not found"); 531 $self->err (404, "not found");
532 }
334 } 533 }
335} 534}
336 535
337sub handle_dir { 536sub handle_dir {
338 my $self = shift; 537 my $self = shift;
339 $self->_cgi($::INDEXPROG); 538 my $idx = $self->diridx;
539
540 $self->response (200, "ok",
541 {
542 "Content-Type" => "text/html; charset=utf-8",
543 "Content-Length" => length $idx,
544 "Last-Modified" => time2str ($self->{stat}[9]),
545 },
546 $idx);
340} 547}
341 548
342sub handle_file { 549sub handle_file {
343 my $self = shift; 550 my ($self, $queue, $tbf) = @_;
344 my $length = -s _; 551 my $length = $self->{stat}[7];
345 my $hdr = { 552 my $hdr = {
346 "Last-Modified" => time2str ((stat _)[9]), 553 "Last-Modified" => time2str ((stat _)[9]),
554 "Accept-Ranges" => "bytes",
347 }; 555 };
348 556
349 my @code = (200, "ok"); 557 my @code = (200, "ok");
350 my ($l, $h); 558 my ($l, $h);
351 559
… …
357 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 565 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
358 } else { 566 } else {
359 ($l, $h) = (0, $length - 1); 567 ($l, $h) = (0, $length - 1);
360 goto ignore; 568 goto ignore;
361 } 569 }
362 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 570 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
363 } 571 }
364 $hdr->{"Content-Range"} = "bytes */$length"; 572 $hdr->{"Content-Range"} = "bytes */$length";
573 $hdr->{"Content-Length"} = $length;
365 $self->err(416, "not satisfiable", $hdr); 574 $self->err (416, "not satisfiable", $hdr, "");
366 575
367satisfiable: 576satisfiable:
368 # check for segmented downloads 577 # check for segmented downloads
369 if ($l && $NO_SEGMENTED) { 578 if ($l && $::NO_SEGMENTED) {
370 if (%{$uri{$self->{uri}}} > 1) { 579 my $timeout = $::NOW + 15;
371 $self->slog("segmented download refused\n"); 580 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
372 $self->err(400, "segmented downloads are not allowed"); 581 if ($timeout <= $::NOW) {
582 $self->block ($::BLOCKTIME, "segmented downloads are forbidden");
583 #$self->err_segmented_download;
584 } else {
585 $httpevent->wait;
586 }
373 } 587 }
374 } 588 }
375 589
376 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 590 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
377 @code = (206, "partial content"); 591 @code = (206, "partial content");
… …
380ignore: 594ignore:
381 } else { 595 } else {
382 ($l, $h) = (0, $length - 1); 596 ($l, $h) = (0, $length - 1);
383 } 597 }
384 598
385 if ($self->{path} =~ /\.html$/) { 599 $self->{path} =~ /\.([^.]+)$/;
386 $hdr->{"Content-Type"} = "text/html";
387 } else {
388 $hdr->{"Content-Type"} = "application/octet-stream"; 600 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
389 }
390
391 $hdr->{"Content-Length"} = $length; 601 $hdr->{"Content-Length"} = $length;
392 602
393 $self->response(@code, $hdr, ""); 603 $self->response (@code, $hdr, "");
394 604
395 if ($self->{method} eq "GET") { 605 if ($self->{method} eq "GET") {
396 my ($fh, $buf); 606 $self->{time} = $::NOW;
607 $self->{written} = 0;
608
397 open $fh, "<", $self->{path} 609 open my $fh, "<", $self->{path}
398 or die "$self->{path}: late open failure ($!)"; 610 or die "$self->{path}: late open failure ($!)";
399 611
400 if ($l) {
401 sysseek $fh, $l, 0
402 or die "$self->{path}: cannot seek to $l ($!)";
403 }
404
405 $h -= $l - 1; 612 $h -= $l - 1;
406 613
614 my $transfer = $queue->start_transfer ($h);
615 my $locked;
616 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
617
407 while ($h > 0) { 618 while ($h > 0) {
408 $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; 619 unless ($locked) {
409 $self->{fh}->syswrite($buf) 620 if ($locked ||= $transfer->try ($::WAIT_INTERVAL)) {
621 $bufsize = $::BUFSIZE;
622 $self->{time} = $::NOW;
623 $self->{written} = 0;
624 }
625 }
626
627 if ($blocked{$self->{remote_id}}) {
628 $self->{h}{connection} = "close";
629 die bless {}, err::;
630 }
631
632 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0
410 or last; 633 or last;
411 }
412 }
413 634
635 $tbf->request (length $buf);
636 my $w = syswrite $self->{fh}, $buf
637 or last;
638 $::written += $w;
639 $self->{written} += $w;
640 $l += $w;
641 }
642
414 close $fh; 643 close $fh;
644 }
415} 645}
416 646
4171; 6471
648

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