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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.14 by root, Sun Aug 12 14:09:03 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;
61
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}
22 79
23my @newcons; 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 $new = pop @newcons;
30 if ($new) { 86 if (@newcons) {
31 eval { 87 eval {
32 conn->new(@$new)->handle; 88 conn->new (@{pop @newcons})->handle;
33 }; 89 };
34 slog 1, "$@" if $@ && !ref $@; 90 slog 1, "$@" if $@ && !ref $@;
91
92 $httpevent->broadcast; # only for testing, but doesn't matter much
93
35 $connections->up; 94 $connections->up;
36 } else { 95 } else {
37 last if @pool >= $MAX_POOL; 96 last if @pool >= $MAX_POOL;
38 push @pool, $Coro::current; 97 push @pool, $Coro::current;
39 schedule; 98 schedule;
40 } 99 }
41 } 100 }
42} 101}
43 102
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
44my $http_port = new Coro::Socket 124my $http_port = new Coro::Socket
45 LocalAddr => $SERVER_HOST, 125 LocalAddr => $SERVER_HOST,
46 LocalPort => $SERVER_PORT, 126 LocalPort => $SERVER_PORT,
47 ReuseAddr => 1, 127 ReuseAddr => 1,
48 Listen => 50, 128 Listen => 50,
49 or die "unable to start server"; 129 or die "unable to start server";
50 130
51push @listen_sockets, $http_port; 131listen_on $http_port;
52 132
53# the "main thread" 133if ($SERVER_PORT2) {
54async { 134 my $http_port = new Coro::Socket
55 slog 1, "accepting connections"; 135 LocalAddr => $SERVER_HOST,
56 while () { 136 LocalPort => $SERVER_PORT2,
57 $connections->down; 137 ReuseAddr => 1,
58 push @newcons, [$http_port->accept]; 138 Listen => 50,
59 #slog 3, "accepted @$connections ".scalar(@pool); 139 or die "unable to start server";
60 $::NOW = time;
61 if (@pool) {
62 (pop @pool)->ready;
63 } else {
64 async \&handler;
65 }
66 140
67 } 141 listen_on $http_port;
68}; 142}
69 143
70package conn; 144package conn;
145
146use strict;
147use bytes;
71 148
72use Socket; 149use Socket;
73use HTTP::Date; 150use HTTP::Date;
74use Convert::Scalar 'weaken'; 151use Convert::Scalar 'weaken';
152use IO::AIO;
75 153
154IO::AIO::min_parallel $::AIO_PARALLEL;
155
156our $AIO_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
157
76our %conn; # $conn{ip}{fh} => connobj 158our %conn; # $conn{ip}{self} => connobj
159our %uri; # $uri{ip}{uri}{self}
77our %blocked; 160our %blocked;
78our %mimetype; 161our %mimetype;
79 162
80sub read_mimetypes { 163sub read_mimetypes {
81 local *M;
82 if (open M, "<mime_types") { 164 if (open my $fh, "<mime_types") {
83 while (<M>) { 165 while (<$fh>) {
84 if (/^([^#]\S+)\t+(\S+)$/) { 166 if (/^([^#]\S+)\t+(\S+)$/) {
85 $mimetype{lc $1} = $2; 167 $mimetype{lc $1} = $2;
86 } 168 }
87 } 169 }
88 } else { 170 } else {
… …
92 174
93read_mimetypes; 175read_mimetypes;
94 176
95sub new { 177sub new {
96 my $class = shift; 178 my $class = shift;
179 my $fh = shift;
97 my $peername = shift; 180 my $peername = shift;
98 my $fh = shift;
99 my $self = bless { fh => $fh }, $class; 181 my $self = bless { fh => $fh }, $class;
100 my (undef, $iaddr) = unpack_sockaddr_in $peername 182 my (undef, $iaddr) = unpack_sockaddr_in $peername
101 or $self->err(500, "unable to decode peername"); 183 or $self->err (500, "unable to decode peername");
102 184
185 $self->{remote_addr} =
103 $self->{remote_addr} = inet_ntoa $iaddr; 186 $self->{remote_id} = inet_ntoa $iaddr;
187
104 $self->{time} = $::NOW; 188 $self->{time} = $::NOW;
105 189
106 # enter ourselves into various lists 190 weaken ($Coro::current->{conn} = $self);
107 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
108 191
109 $::conns++; 192 ++$::conns;
193 $::maxconns = $::conns if $::conns > $::maxconns;
110 194
111 $self; 195 $self
112} 196}
113 197
114sub DESTROY { 198sub DESTROY {
115 my $self = shift; 199 my $self = shift;
116 200
117 $::conns--; 201 --$::conns;
118
119 delete $conn{$self->{remote_addr}}{$self*1};
120 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
121} 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;
122 227
123sub slog { 228sub slog {
124 my $self = shift; 229 my $self = shift;
125 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 230 main::slog($_[0], "$self->{remote_id}> $_[1]");
126} 231}
127 232
128sub response { 233sub response {
129 my ($self, $code, $msg, $hdr, $content) = @_; 234 my ($self, $code, $msg, $hdr, $content) = @_;
130 my $res = "HTTP/1.0 $code $msg\015\012"; 235 my $res = "HTTP/1.1 $code $msg\015\012";
236 my $GZ = "";
131 237
132 $res .= "Connection: close\015\012"; 238 if (exists $hdr->{Connection}) {
133 $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: $::NAME\015\012";
134 267
135 while (my ($h, $v) = each %$hdr) { 268 while (my ($h, $v) = each %$hdr) {
136 $res .= "$h: $v\015\012" 269 $res .= "$h: $v\015\012"
137 } 270 }
138 $res .= "\015\012"; 271 $res .= "\015\012";
139 272
140 $res .= $content if defined $content and $self->{method} ne "HEAD"; 273 $res .= $content if defined $content and $self->{method} ne "HEAD";
141 274
142 print STDERR "$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";
143 278
144 $self->{written} += 279 print $::accesslog $log if $::accesslog;
145 print {$self->{fh}} $res; 280 print STDERR $log;
281
282 $tbf_top->request(length $res, 1e6);
283 $self->{written} += print {$self->{fh}} $res;
146} 284}
147 285
148sub err { 286sub err {
149 my $self = shift; 287 my $self = shift;
150 my ($code, $msg, $hdr, $content) = @_; 288 my ($code, $msg, $hdr, $content) = @_;
151 289
152 unless (defined $content) { 290 unless (defined $content) {
153 $content = "$code $msg"; 291 $content = "$code $msg\n";
154 $hdr->{"Content-Type"} = "text/plain"; 292 $hdr->{"Content-Type"} = "text/plain";
155 $hdr->{"Content-Length"} = length $content; 293 $hdr->{"Content-Length"} = length $content;
156 } 294 }
295 $hdr->{"Connection"} = "close";
157 296
158 $self->response($code, $msg, $hdr, $content); 297 $self->response ($code, $msg, $hdr, $content);
159 298
160 die bless {}, err::; 299 die bless {}, err::
161}
162
163sub err_blocked {
164 my $self = shift;
165 my $ip = $self->{remote_addr};
166 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
167
168 Coro::Event::do_timer(after => 15);
169
170 $self->err(401, "too many connections",
171 {
172 "Content-Type" => "text/html",
173 "Retry-After" => $::BLOCKTIME
174 },
175 <<EOF);
176<html><p>
177You have been blocked because you opened too many connections. You
178may retry at</p>
179
180 <p><blockquote>$time.</blockquote></p>
181
182<p>Until then, each new access will renew the block. You might want to have a
183look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
184</html>
185EOF
186} 300}
187 301
188sub handle { 302sub handle {
189 my $self = shift; 303 my $self = shift;
190 my $fh = $self->{fh}; 304 my $fh = $self->{fh};
191 305
306 my $host;
307
308 $fh->timeout($::REQ_TIMEOUT);
192 #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
193 $self->{h} = {}; 323 $self->{h} = {};
194 324
195 # read request and parse first line
196 $fh->timeout($::REQ_TIMEOUT);
197 my $req = $fh->readline("\015\012\015\012");
198 $fh->timeout($::RES_TIMEOUT); 325 $fh->timeout($::RES_TIMEOUT);
199
200 defined $req or
201 $self->err(408, "request timeout");
202
203 my $ip = $self->{remote_addr};
204
205 $self->err_blocked($blocked{$ip});
206 if ($blocked{$ip}) {
207 $self->err_blocked($blocked{$ip})
208 if $blocked{$ip} > $::NOW;
209
210 delete $blocked{$ip};
211 }
212
213 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
214 $self->slog(2, "blocked ip $ip");
215 $self->err_blocked;
216 }
217 326
218 $req =~ /^(?:\015\012)? 327 $req =~ /^(?:\015\012)?
219 (GET|HEAD) \040+ 328 (GET|HEAD) \040+
220 ([^\040]+) \040+ 329 ([^\040]+) \040+
221 HTTP\/([0-9]+\.[0-9]+) 330 HTTP\/([0-9]+\.[0-9]+)
222 \015\012/gx 331 \015\012/gx
223 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" }); 332 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
224 333
225 $2 ne "1.0"
226 or $self->err(506, "http protocol version not supported");
227
228 $self->{method} = $1; 334 $self->{method} = $1;
229 $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");
230 340
231 # parse headers 341 # parse headers
232 { 342 {
233 my (%hdr, $h, $v); 343 my (%hdr, $h, $v);
234 344
235 $hdr{lc $1} .= ",$2" 345 $hdr{lc $1} .= ",$2"
236 while $req =~ /\G 346 while $req =~ /\G
237 ([^:\000-\040]+): 347 ([^:\000-\040]+):
238 [\008\040]* 348 [\011\040]*
239 ((?: [^\015\012]+ | \015\012[\008\040] )*) 349 ((?: [^\015\012]+ | \015\012[\011\040] )*)
240 \015\012 350 \015\012
241 /gxc; 351 /gxc;
242 352
243 $req =~ /\G\015\012$/ 353 $req =~ /\G\015\012$/
244 or $self->err(400, "bad request"); 354 or $self->err(400, "bad request");
245 355
246 $self->{h}{$h} = substr $v, 1 356 $self->{h}{$h} = substr $v, 1
247 while ($h, $v) = each %hdr; 357 while ($h, $v) = each %hdr;
248 } 358 }
249 359
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) {
250 $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 }
251 395
396 $self->{server_name} = $host;
397
252 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 398 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
253 399
400 eval {
254 $self->map_uri; 401 $self->map_uri;
255 $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);
256 #} 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;
257} 421}
258 422
259# uri => path mapping 423# uri => path mapping
260sub map_uri { 424sub map_uri {
261 my $self = shift; 425 my $self = shift;
262 my $host = $self->{h}{host} || "default"; 426 my $host = $self->{server_name};
263 my $uri = $self->{uri}; 427 my $uri = $self->{uri};
428
429 $host =~ /[\/\\]/
430 and $self->err(400, "bad request");
264 431
265 # some massaging, also makes it more secure 432 # some massaging, also makes it more secure
266 $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;
267 $uri =~ s%//+%/%g; 434 $uri =~ s%//+%/%g;
268 $uri =~ s%/\.(?=/|$)%%g; 435 $uri =~ s%/\.(?=/|$)%%g;
… …
277 $self->{path} = "$::DOCROOT/$host$uri"; 444 $self->{path} = "$::DOCROOT/$host$uri";
278 445
279 $self->access_check; 446 $self->access_check;
280} 447}
281 448
282sub server_address {
283 my $self = shift;
284 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
285 or $self->err(500, "unable to get socket name");
286 ((inet_ntoa $iaddr), $port);
287}
288
289sub server_host {
290 my $self = shift;
291 if (exists $self->{h}{host}) {
292 return $self->{h}{host};
293 } else {
294 return (($self->server_address)[0]);
295 }
296}
297
298sub server_hostport {
299 my $self = shift;
300 my ($host, $port);
301 if (exists $self->{h}{host}) {
302 ($host, $port) = ($self->{h}{host}, $self->{server_port});
303 } else {
304 ($host, $port) = $self->server_address;
305 }
306 $port = $port == 80 ? "" : ":$port";
307 $host.$port;
308}
309
310sub _cgi { 449sub _cgi {
311 my $self = shift; 450 my $self = shift;
312 my $path = shift; 451 my $path = shift;
313 my $fh; 452 my $fh;
314 453
315 # no two-way xxx supported 454 # no two-way xxx supported
316 if (0 == fork) { 455 if (0 == fork) {
317 open STDOUT, ">&".fileno($self->{fh}); 456 open STDOUT, ">&".fileno($self->{fh});
318 if (chdir $::DOCROOT) { 457 if (chdir $::DOCROOT) {
319 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 458 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
320 $ENV{HTTP_HOST} = $self->server_host; 459 $ENV{HTTP_HOST} = $self->{server_name};
321 $ENV{HTTP_PORT} = $self->{server_host}; 460 $ENV{HTTP_PORT} = $self->{server_port};
322 $ENV{SCRIPT_NAME} = $self->{name}; 461 $ENV{SCRIPT_NAME} = $self->{name};
323 exec $path; 462 exec $path;
324 } 463 }
325 Coro::State::_exit(0); 464 Coro::State::_exit(0);
326 } else { 465 } else {
466 die;
327 } 467 }
468}
469
470sub server_hostport {
471 $_[0]{server_port} == 80
472 ? $_[0]{server_name}
473 : "$_[0]{server_name}:$_[0]{server_port}";
328} 474}
329 475
330sub respond { 476sub respond {
331 my $self = shift; 477 my $self = shift;
332 my $path = $self->{path}; 478 my $path = $self->{path};
333 479
334 stat $path 480 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
335 or $self->err(404, "not found"); 481 if ($::internal{$1}) {
336 482 $::internal{$1}->($self);
337 $self->{stat} = [stat _];
338
339 # idiotic netscape sends idiotic headers AGAIN
340 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
341 ? str2time $1 : 0;
342
343 if (-d _ && -r _) {
344 # directory
345 if ($path !~ /\/$/) {
346 # create a redirect to get the trailing "/"
347 my $host = $self->server_hostport;
348 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
349 } else { 483 } else {
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 {
350 $ims < $self->{stat}[9] 504 $ims < $self->{stat}[9]
351 or $self->err(304, "not modified"); 505 or $self->err (304, "not modified");
352 506
353 if ($self->{method} eq "GET") {
354 if (-r "$path/index.html") { 507 if (-r "$path/index.html") {
508 # replace directory "size" by index.html filesize
355 $self->{path} .= "/index.html"; 509 $self->{stat} = [stat ($self->{path} .= "/index.html")];
356 $self->handle_file; 510 $self->handle_file ($queue_index, $tbf_top);
357 } else { 511 } else {
358 $self->handle_dir; 512 $self->handle_dir;
359 } 513 }
360 } 514 }
361 }
362 } elsif (-f _ && -r _) { 515 } elsif (-f _ && -r _) {
363 -x _ and $self->err(403, "forbidden"); 516 -x _ and $self->err (403, "forbidden");
364 $self->handle_file; 517
518 if (keys %{$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);
365 } else { 530 } else {
366 $self->err(404, "not found"); 531 $self->err (404, "not found");
532 }
367 } 533 }
368} 534}
369 535
370sub handle_dir { 536sub handle_dir {
371 my $self = shift; 537 my $self = shift;
372 my $idx = $self->diridx; 538 my $idx = $self->diridx;
373 539
374 $self->response(200, "ok", 540 $self->response (200, "ok",
375 { 541 {
376 "Content-Type" => "text/html", 542 "Content-Type" => "text/html; charset=utf-8",
377 "Content-Length" => length $idx, 543 "Content-Length" => length $idx,
544 "Last-Modified" => time2str ($self->{stat}[9]),
378 }, 545 },
379 $idx); 546 $idx);
380} 547}
381 548
382sub handle_file { 549sub handle_file {
383 my $self = shift; 550 my ($self, $queue, $tbf) = @_;
384 my $length = -s _; 551 my $length = $self->{stat}[7];
385 my $hdr = { 552 my $hdr = {
386 "Last-Modified" => time2str ((stat _)[9]), 553 "Last-Modified" => time2str ((stat _)[9]),
554 "Accept-Ranges" => "bytes",
387 }; 555 };
388 556
389 my @code = (200, "ok"); 557 my @code = (200, "ok");
390 my ($l, $h); 558 my ($l, $h);
391 559
… …
397 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 565 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
398 } else { 566 } else {
399 ($l, $h) = (0, $length - 1); 567 ($l, $h) = (0, $length - 1);
400 goto ignore; 568 goto ignore;
401 } 569 }
402 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 570 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
403 } 571 }
404 $hdr->{"Content-Range"} = "bytes */$length"; 572 $hdr->{"Content-Range"} = "bytes */$length";
573 $hdr->{"Content-Length"} = $length;
405 $self->err(416, "not satisfiable", $hdr); 574 $self->err (416, "not satisfiable", $hdr, "");
406 575
407satisfiable: 576satisfiable:
408 # check for segmented downloads 577 # check for segmented downloads
409 if ($l && $::NO_SEGMENTED) { 578 if ($l && $::NO_SEGMENTED) {
579 my $timeout = $::NOW + 15;
410 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 580 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
411 Coro::Event::do_timer(after => 15); 581 if ($timeout <= $::NOW) {
412 582 $self->block ($::BLOCKTIME, "segmented downloads are forbidden");
413 $self->err(400, "segmented downloads are not allowed"); 583 #$self->err_segmented_download;
584 } else {
585 $httpevent->wait;
586 }
414 } 587 }
415 } 588 }
416 589
417 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 590 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
418 @code = (206, "partial content"); 591 @code = (206, "partial content");
… …
425 598
426 $self->{path} =~ /\.([^.]+)$/; 599 $self->{path} =~ /\.([^.]+)$/;
427 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; 600 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
428 $hdr->{"Content-Length"} = $length; 601 $hdr->{"Content-Length"} = $length;
429 602
430 $self->response(@code, $hdr, ""); 603 $self->response (@code, $hdr, "");
431 604
432 if ($self->{method} eq "GET") { 605 if ($self->{method} eq "GET") {
433 my ($fh, $buf); 606 $self->{time} = $::NOW;
607 $self->{written} = 0;
608
434 open $fh, "<", $self->{path} 609 open my $fh, "<", $self->{path}
435 or die "$self->{path}: late open failure ($!)"; 610 or die "$self->{path}: late open failure ($!)";
436 611
437 if ($l) {
438 sysseek $fh, $l, 0
439 or die "$self->{path}: cannot seek to $l ($!)";
440 }
441
442 $h -= $l - 1; 612 $h -= $l - 1;
443 613
614 my $transfer = $queue->start_transfer ($h);
615 my $locked;
616 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
617
444 while ($h > 0) { 618 while ($h > 0) {
445 $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; 619 unless ($locked) {
446 my $w = $self->{fh}->syswrite($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
633 or last;
634
635 $tbf->request (length $buf);
636 my $w = syswrite $self->{fh}, $buf
447 or last; 637 or last;
448 $::written += $w; 638 $::written += $w;
449 $self->{written} += $w; 639 $self->{written} += $w;
640 $l += $w;
450 } 641 }
451 }
452 642
453 close $fh; 643 close $fh;
644 }
454} 645}
455 646
4561; 6471
648

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