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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.9 by root, Sat Aug 11 12:49:21 2001 UTC vs.
Revision 1.93 by root, Sun Mar 21 00:21:14 2010 UTC

1use Coro; 1use Coro;
2use Coro::Semaphore; 2use Coro::Semaphore;
3use Coro::SemaphoreSet;
3use Coro::Event; 4use Coro::EV;
4use Coro::Socket; 5use Coro::Socket;
6use Coro::Signal;
7use Coro::AIO ();
5 8
6no utf8; 9use Fcntl;
7use bytes; 10use HTTP::Date;
11use POSIX ();
12
13use Compress::Zlib ();
14
15use common::sense;
8 16
9# at least on my machine, this thingy serves files 17# at least on my machine, this thingy serves files
10# quite a bit faster than apache, ;) 18# quite a bit faster than apache, ;)
11# and quite a bit slower than thttpd :( 19# and quite a bit slower than thttpd :(
12 20
13$SIG{PIPE} = 'IGNORE'; 21$SIG{PIPE} = 'IGNORE';
14 22
23our $accesslog;
24our $errorlog;
25our @listen_sockets;
26
27our $NOW;
28our $HTTP_NOW;
29
30our $ERROR_LOG;
31our $ACCESS_LOG;
32our $TRANSFER_LOCK = new Coro::SemaphoreSet; # lock to be acquired per ip
33
34our $update_time = EV::periodic 0, 1, undef, sub {
35 $NOW = time;
36 $HTTP_NOW = time2str $NOW;
37};
38$update_time->invoke;
39
40if ($ERROR_LOG) {
41 use IO::Handle;
42 open $errorlog, ">>$ERROR_LOG"
43 or die "$ERROR_LOG: $!";
44 $errorlog->autoflush(1);
45}
46
47if ($ACCESS_LOG) {
48 use IO::Handle;
49 open $accesslog, ">>$ACCESS_LOG"
50 or die "$ACCESS_LOG: $!";
51 $accesslog->autoflush(1);
52}
53
15sub slog { 54sub slog {
16 my $level = shift; 55 my $level = shift;
17 my $format = shift; 56 my $format = shift;
57
58 $format = sprintf $format, @_ if @_;
59
60 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
18 printf "---: $format\n", @_; 61 print "$NOW: $format\n";
62 print $errorlog "$NOW: $format\n", @_ if $errorlog;
19} 63}
20 64
21my $connections = new Coro::Semaphore $MAX_CONNECTS; 65our $connections = new Coro::Semaphore $::MAX_CONNECTS || 250;
66our $httpevent = new Coro::Signal;
22 67
23my @newcons; 68our $queue_file = new transferqueue $::MAX_TRANSFERS;
24my @pool; 69our $queue_index = new transferqueue 10;
25 70
26# one "execution thread" 71our $tbf_top = new tbf rate => $::TBF_RATE || 100000;
27sub handler { 72
73my $unused_bytes = 0;
74my $unused_last = time;
75
76sub unused_bandwidth {
77 $unused_bytes += $_[0];
78 if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) {
79 $unused_last = $NOW;
80 $unused_bytes = 0;
81 $queue_file->force_wake_next
82 and slog 1, "forced filetransfer due to unused bandwidth";
83 }
84}
85
86sub listen_on {
87 my $listen = $_[0];
88
89 push @listen_sockets, $listen;
90
91 # the "main thread"
92 async {
93 slog 1, "accepting connections";
28 while () { 94 while () {
29 my $new = pop @newcons; 95 $connections->down;
30 if ($new) { 96 my @conn = $listen->accept;
97 #slog 3, "accepted @$connections ".scalar(@pool);
98
99 async_pool {
31 eval { 100 eval {
32 conn->new(@$new)->handle; 101 conn->new (@conn)->handle;
33 }; 102 };
34 slog 1, "$@" if $@ && !ref $@; 103 slog 1, "$@" if $@ && !ref $@;
104
105 $httpevent->broadcast; # only for testing, but doesn't matter much
106
35 $connections->up; 107 $connections->up;
36 } else {
37 last if @pool >= $MAX_POOL;
38 push @pool, $Coro::current;
39 schedule;
40 } 108 }
109 }
41 } 110 };
42} 111}
43 112
44my $http_port = new Coro::Socket 113my $http_port = new Coro::Socket
45 LocalAddr => $SERVER_HOST, 114 LocalAddr => $::SERVER_HOST,
46 LocalPort => $SERVER_PORT, 115 LocalPort => $::SERVER_PORT,
47 ReuseAddr => 1, 116 ReuseAddr => 1,
48 Listen => 1, 117 Listen => 50,
49 or die "unable to start server"; 118 or die "unable to start server";
50 119
51push @listen_sockets, $http_port; 120listen_on $http_port;
52 121
53# the "main thread" 122if ($::SERVER_PORT2) {
54async { 123 my $http_port = new Coro::Socket
55 slog 1, "accepting connections"; 124 LocalAddr => $::SERVER_HOST,
56 while () { 125 LocalPort => $::SERVER_PORT2,
57 $connections->down; 126 ReuseAddr => 1,
58 push @newcons, [$http_port->accept]; 127 Listen => 50,
59 #slog 3, "accepted @$connections ".scalar(@pool); 128 or die "unable to start server";
60 $::NOW = time;
61 if (@pool) {
62 (pop @pool)->ready;
63 } else {
64 async \&handler;
65 }
66 129
67 } 130 listen_on $http_port;
68}; 131}
69 132
70package conn; 133package conn;
134
135use common::sense;
71 136
72use Socket; 137use Socket;
73use HTTP::Date; 138use HTTP::Date;
74use Convert::Scalar 'weaken'; 139use Convert::Scalar 'weaken';
140use IO::AIO;
75 141
142IO::AIO::min_parallel $::AIO_PARALLEL;
143
144our $AIO_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
145
76our %conn; # $conn{ip}{fh} => connobj 146our %conn; # $conn{ip}{self} => connobj
147our %uri; # $uri{ip}{uri}{self}
77our %blocked; 148our %blocked;
78our %mimetype; 149our %mimetype;
79 150
80sub read_mimetypes { 151sub read_mimetypes {
81 local *M;
82 if (open M, "<mimetypes") { 152 if (open my $fh, "<mime_types") {
83 while (<M>) { 153 while (<$fh>) {
84 if (/^([^#]\S+)\t+(\S+)$/) { 154 if (/^([^#]\S+)\t+(\S+)$/) {
85 $mimetype{lc $1} = $2; 155 $mimetype{lc $1} = $2;
86 } 156 }
87 } 157 }
88 } else { 158 } else {
89 $self->slog(1, "cannot open mimetypes\n"); 159 print "cannot open mime_types\n";
90 } 160 }
91} 161}
162
163read_mimetypes;
92 164
93sub new { 165sub new {
94 my $class = shift; 166 my $class = shift;
167 my $fh = shift;
95 my $peername = shift; 168 my $peername = shift;
96 my $fh = shift;
97 my $self = bless { fh => $fh }, $class; 169 my $self = bless { fh => $fh }, $class;
98 my (undef, $iaddr) = unpack_sockaddr_in $peername 170 my (undef, $iaddr) = unpack_sockaddr_in $peername
99 or $self->err(500, "unable to decode peername"); 171 or $self->err (500, "unable to decode peername");
100 172
173 $self->{remote_addr} =
101 $self->{remote_addr} = inet_ntoa $iaddr; 174 $self->{remote_id} = inet_ntoa $iaddr;
102 175
103 # enter ourselves into various lists 176 $self->{time} = $::NOW;
104 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
105 177
178 weaken ($Coro::current->{conn} = $self);
179
180 ++$::conns;
181 $::maxconns = $::conns if $::conns > $::maxconns;
182
106 $self; 183 $self
107} 184}
108 185
109sub DESTROY { 186sub DESTROY {
110 my $self = shift; 187 my $self = shift;
111 delete $conn{$self->{remote_addr}}{$self*1}; 188
112 delete $uri{$self->{uri}}{$self*1}; 189 --$::conns;
113} 190}
191
192sub prune_cache {
193 my $hash = $_[0];
194
195 for (keys %$hash) {
196 if (ref $hash->{$_} eq HASH::) {
197 prune_cache($hash->{$_});
198 unless (scalar keys %{$hash->{$_}}) {
199 delete $hash->{$_};
200 }
201 }
202 }
203}
204
205sub prune_caches {
206 prune_cache \%conn;
207 prune_cache \%uri;
208
209 for (keys %blocked) {
210 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
211 }
212}
213
214our $PRUNE_WATCHER = EV::timer 60, 60, \&prune_caches;
114 215
115sub slog { 216sub slog {
116 my $self = shift; 217 my $self = shift;
117 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 218 main::slog($_[0], "$self->{remote_id}> $_[1]");
118} 219}
119 220
120sub response { 221sub response {
121 my ($self, $code, $msg, $hdr, $content) = @_; 222 my ($self, $code, $msg, $hdr, $content) = @_;
122 my $res = "HTTP/1.0 $code $msg\015\012"; 223 my $res = "HTTP/1.1 $code $msg\015\012";
224 my $GZ = "";
123 225
124 $res .= "Connection: close\015\012"; 226 if (exists $hdr->{Connection}) {
125 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 227 if ($hdr->{Connection} =~ /close/) {
228 $self->{h}{connection} = "close"
229 }
230 } else {
231 if ($self->{version} < 1.1) {
232 if ($self->{h}{connection} =~ /keep-alive/i) {
233 $hdr->{Connection} = "Keep-Alive";
234 } else {
235 $self->{h}{connection} = "close"
236 }
237 }
238 }
239
240 if ($self->{method} ne "HEAD"
241 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
242 && 400 < length $content
243 && $hdr->{"Content-Length"} == length $content
244 && !exists $hdr->{"Content-Encoding"}
245 ) {
246 my $orig = length $content;
247 $hdr->{"Content-Encoding"} = "gzip";
248 $content = Compress::Zlib::memGzip(\$content);
249 $hdr->{"Content-Length"} = length $content;
250 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
251 }
252
253 $res .= "Date: $HTTP_NOW\015\012";
254 $res .= "Server: $::NAME\015\012";
126 255
127 while (my ($h, $v) = each %$hdr) { 256 while (my ($h, $v) = each %$hdr) {
128 $res .= "$h: $v\015\012" 257 $res .= "$h: $v\015\012"
129 } 258 }
259 $res .= "\015\012";
130 260
131 $res .= "\015\012$content" if defined $content; 261 $res .= $content if defined $content and $self->{method} ne "HEAD";
132 262
133 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 263 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
264 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
265 " \"$self->{h}{referer}\"\n";
134 266
135 print {$self->{fh}} $res; 267 print $::accesslog $log if $::accesslog;
268 print STDERR $log;
269
270 $tbf_top->request(length $res, 1e6);
271 $self->{written} += print {$self->{fh}} $res;
136} 272}
137 273
138sub err { 274sub err {
139 my $self = shift; 275 my $self = shift;
140 my ($code, $msg, $hdr, $content) = @_; 276 my ($code, $msg, $hdr, $content) = @_;
141 277
142 unless (defined $content) { 278 unless (defined $content) {
143 $content = "$code $msg"; 279 $content = "$code $msg\n";
144 $hdr->{"Content-Type"} = "text/plain"; 280 $hdr->{"Content-Type"} = "text/plain";
145 $hdr->{"Content-Length"} = length $content; 281 $hdr->{"Content-Length"} = length $content;
146 } 282 }
283 $hdr->{"Connection"} = "close";
147 284
148 $self->response($code, $msg, $hdr, $content); 285 $self->response ($code, $msg, $hdr, $content);
149 286
150 die bless {}, err::; 287 die bless {}, err::
151}
152
153sub err_blocked {
154 my $self = shift;
155 my $ip = $self->{remote_addr};
156 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
157 $self->err(403, "too many connections",
158 {
159 "Content-Type" => "text/html",
160 "Retry-After" => $::BLOCKTIME
161 },
162 <<EOF);
163<html><p>
164You have been blocked because you opened too many connections. You
165may retry at</p>
166
167 <p><blockquote>$time.</blockquote></p>
168
169<p>Until then, each new access will renew the block. You might want to have a
170look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
171</html>
172EOF
173} 288}
174 289
175sub handle { 290sub handle {
176 my $self = shift; 291 my $self = shift;
177 my $fh = $self->{fh}; 292 my $fh = $self->{fh};
178 293
294 my $host;
295
296 $fh->timeout($::REQ_TIMEOUT);
179 #while() { 297 while () {
298 $self->{reqs}++;
299
300 # read request and parse first line
301 my $req = $fh->readline("\015\012\015\012");
302
303 unless (defined $req) {
304 if (exists $self->{version}) {
305 last;
306 } else {
307 $self->err(408, "request timeout");
308 }
309 }
310
180 $self->{h} = {}; 311 $self->{h} = {};
181 312
182 # read request and parse first line
183 $fh->timeout($::REQ_TIMEOUT);
184 my $req = $fh->readline("\015\012\015\012");
185 $fh->timeout($::RES_TIMEOUT); 313 $fh->timeout($::RES_TIMEOUT);
186
187 defined $req or
188 $self->err(408, "request timeout");
189
190 my $ip = $self->{remote_addr};
191
192 if ($blocked{$ip}) {
193 $self->err_blocked($blocked{$ip})
194 if $blocked{$ip} > $::NOW;
195
196 delete $blocked{$ip};
197 }
198
199 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
200 $self->slog("blocked ip $ip");
201 $self->err_blocked;
202 }
203 314
204 $req =~ /^(?:\015\012)? 315 $req =~ /^(?:\015\012)?
205 (GET|HEAD) \040+ 316 (GET|HEAD) \040+
206 ([^\040]+) \040+ 317 ([^\040]+) \040+
207 HTTP\/([0-9]+\.[0-9]+) 318 HTTP\/([0-9]+\.[0-9]+)
208 \015\012/gx 319 \015\012/gx
209 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 320 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
210
211 $2 ne "1.0"
212 or $self->err(506, "http protocol version not supported");
213 321
214 $self->{method} = $1; 322 $self->{method} = $1;
215 $self->{uri} = $2; 323 $self->{uri} = $2;
324 $self->{version} = $3;
325
326 $3 =~ /^1\./
327 or $self->err(506, "http protocol version $3 not supported");
216 328
217 # parse headers 329 # parse headers
218 { 330 {
219 my (%hdr, $h, $v); 331 my (%hdr, $h, $v);
220 332
221 $hdr{lc $1} .= ",$2" 333 $hdr{lc $1} .= ",$2"
222 while $req =~ /\G 334 while $req =~ /\G
223 ([^:\000-\040]+): 335 ([^:\000-\040]+):
224 [\008\040]* 336 [\011\040]*
225 ((?: [^\015\012]+ | \015\012[\008\040] )*) 337 ((?: [^\015\012]+ | \015\012[\011\040] )*)
226 \015\012 338 \015\012
227 /gxc; 339 /gxc;
228 340
229 $req =~ /\G\015\012$/ 341 $req =~ /\G\015\012$/
230 or $self->err(400, "bad request"); 342 or $self->err(400, "bad request");
231 343
232 $self->{h}{$h} = substr $v, 1 344 $self->{h}{$h} = substr $v, 1
233 while ($h, $v) = each %hdr; 345 while ($h, $v) = each %hdr;
234 } 346 }
235 347
348 # remote id should be unique per user
349 my $id = $self->{remote_addr};
350
351 if (exists $self->{h}{"client-ip"}) {
352 $id .= "[".$self->{h}{"client-ip"}."]";
353 } elsif (exists $self->{h}{"x-forwarded-for"}) {
354 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
355 }
356
357 $self->{remote_id} = $id;
358
359 weaken (local $conn{$id}{$self*1} = $self);
360
361 if ($blocked{$id}) {
362 $self->err_blocked
363 if $blocked{$id}[0] > $::NOW;
364
365 delete $blocked{$id};
366 }
367
368 # find out server name and port
369 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
370 $host = $1;
371 } else {
372 $host = $self->{h}{host};
373 }
374
375 if (defined $host) {
236 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 376 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
377 } else {
378 ($self->{server_port}, $host)
379 = unpack_sockaddr_in $self->{fh}->sockname
380 or $self->err(500, "unable to get socket name");
381 $host = inet_ntoa $host;
382 }
237 383
384 $self->{server_name} = $host;
385
238 weaken ($uri{$self->{uri}}{$self*1} = $self); 386 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
239 387
388 eval {
240 $self->map_uri; 389 $self->map_uri;
241 $self->respond; 390 $self->respond;
391 };
392
393 die if $@ && !ref $@;
394
395 last if $self->{h}{connection} =~ /close/i;
396
397 $httpevent->broadcast;
398
399 $fh->timeout($::PER_TIMEOUT);
242 #} 400 }
401}
402
403sub block {
404 my $self = shift;
405
406 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
407 $self->slog(2, "blocked ip $self->{remote_id}");
408 $self->err_blocked;
243} 409}
244 410
245# uri => path mapping 411# uri => path mapping
246sub map_uri { 412sub map_uri {
247 my $self = shift; 413 my $self = shift;
248 my $host = $self->{h}{host} || "default"; 414 my $host = $self->{server_name};
249 my $uri = $self->{uri}; 415 my $uri = $self->{uri};
416
417 $host =~ /[\/\\]/
418 and $self->err(400, "bad request");
250 419
251 # some massaging, also makes it more secure 420 # some massaging, also makes it more secure
252 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 421 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
253 $uri =~ s%//+%/%g; 422 $uri =~ s%//+%/%g;
254 $uri =~ s%/\.(?=/|$)%%g; 423 $uri =~ s%/\.(?=/|$)%%g;
… …
263 $self->{path} = "$::DOCROOT/$host$uri"; 432 $self->{path} = "$::DOCROOT/$host$uri";
264 433
265 $self->access_check; 434 $self->access_check;
266} 435}
267 436
268sub server_address {
269 my $self = shift;
270 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
271 or $self->err(500, "unable to get socket name");
272 ((inet_ntoa $iaddr), $port);
273}
274
275sub server_host {
276 my $self = shift;
277 if (exists $self->{h}{host}) {
278 return $self->{h}{host};
279 } else {
280 return (($self->server_address)[0]);
281 }
282}
283
284sub server_hostport {
285 my $self = shift;
286 my ($host, $port);
287 if (exists $self->{h}{host}) {
288 ($host, $port) = ($self->{h}{host}, $self->{server_port});
289 } else {
290 ($host, $port) = $self->server_address;
291 }
292 $port = $port == 80 ? "" : ":$port";
293 $host.$port;
294}
295
296sub _cgi { 437sub _cgi {
297 my $self = shift; 438 my $self = shift;
298 my $path = shift; 439 my $path = shift;
299 my $fh; 440 my $fh;
300 441
301 # no two-way xxx supported 442 # no two-way xxx supported
302 if (0 == fork) { 443 if (0 == fork) {
303 open STDOUT, ">&".fileno($self->{fh}); 444 open STDOUT, ">&".fileno($self->{fh});
304 if (chdir $::DOCROOT) { 445 if (chdir $::DOCROOT) {
305 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 446 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
306 $ENV{HTTP_HOST} = $self->server_host; 447 $ENV{HTTP_HOST} = $self->{server_name};
307 $ENV{HTTP_PORT} = $self->{server_host}; 448 $ENV{HTTP_PORT} = $self->{server_port};
308 $ENV{SCRIPT_NAME} = $self->{name}; 449 $ENV{SCRIPT_NAME} = $self->{name};
309 exec $::INDEXPROG; 450 exec $path;
310 } 451 }
311 Coro::State::_exit(0); 452 Coro::State::_exit(0);
312 } else { 453 } else {
454 die;
313 } 455 }
456}
457
458sub server_hostport {
459 $_[0]{server_port} == 80
460 ? $_[0]{server_name}
461 : "$_[0]{server_name}:$_[0]{server_port}";
314} 462}
315 463
316sub respond { 464sub respond {
317 my $self = shift; 465 my $self = shift;
318 my $path = $self->{path}; 466 my $path = $self->{path};
319 467
320 stat $path 468 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
321 or $self->err(404, "not found"); 469 if ($::internal{$1}) {
322 470 $::internal{$1}->($self);
323 # idiotic netscape sends idiotic headers AGAIN
324 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
325 ? str2time $1 : 0;
326
327 if (-d _ && -r _) {
328 # directory
329 if ($path !~ /\/$/) {
330 # create a redirect to get the trailing "/"
331 my $host = $self->server_hostport;
332 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
333 } else { 471 } else {
334 $ims < (stat _)[9] 472 $self->err (404, "not found");
473 }
474 } else {
475
476 Coro::AIO::aio_stat $path
477 and $self->err (404, "not found");
478
479 $self->{stat} = [stat _];
480
481 # idiotic netscape sends idiotic headers AGAIN
482 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
483 ? str2time $1 : 0;
484
485 if (-d _ && -r _) {
486 # directory
487 if ($path !~ /\/$/) {
488 # create a redirect to get the trailing "/"
489 # we don't try to avoid the :80
490 $self->err (301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
491 } else {
492 $ims < $self->{stat}[9]
335 or $self->err(304, "not modified"); 493 or $self->err (304, "not modified");
336 494
337 if ($self->{method} eq "GET") {
338 if (-r "$path/index.html") { 495 if (-r "$path/index.html") {
496 # replace directory "size" by index.html filesize
339 $self->{path} .= "/index.html"; 497 $self->{stat} = [stat ($self->{path} .= "/index.html")];
340 $self->handle_file; 498 $self->handle_file ($queue_index, $tbf_top);
341 } else { 499 } else {
342 $self->handle_dir; 500 $self->handle_dir;
343 } 501 }
344 } 502 }
345 }
346 } elsif (-f _ && -r _) { 503 } elsif (-f _ && -r _) {
347 -x _ and $self->err(403, "forbidden"); 504 -x _ and $self->err (403, "forbidden");
348 $self->handle_file; 505
506 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
507 my $timeout = $::NOW + 10;
508 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
509 if ($timeout < $::NOW) {
510 $self->block($::BLOCKTIME, "too many connections");
511 } else {
512 $httpevent->wait;
513 }
514 }
515 }
516
517 $self->handle_file ($queue_file, $tbf_top);
349 } else { 518 } else {
350 $self->err(404, "not found"); 519 $self->err (404, "not found");
520 }
351 } 521 }
352} 522}
353 523
354sub handle_dir { 524sub handle_dir {
355 my $self = shift; 525 my $self = shift;
356 $self->_cgi($::INDEXPROG); 526 my $idx = $self->diridx;
527
528 $self->response (200, "ok",
529 {
530 "Content-Type" => "text/html; charset=utf-8",
531 "Content-Length" => length $idx,
532 "Last-Modified" => time2str ($self->{stat}[9]),
533 },
534 $idx);
357} 535}
358 536
359sub handle_file { 537sub handle_file {
360 my $self = shift; 538 my ($self, $queue, $tbf) = @_;
361 my $length = -s _; 539 my $length = $self->{stat}[7];
362 my $hdr = { 540 my $hdr = {
363 "Last-Modified" => time2str ((stat _)[9]), 541 "Last-Modified" => time2str ((stat _)[9]),
542 "Accept-Ranges" => "bytes",
364 }; 543 };
365 544
366 my @code = (200, "ok"); 545 my @code = (200, "ok");
367 my ($l, $h); 546 my ($l, $h);
368 547
369 if ($self->{h}{range} =~ /^bytes=(.*)$/) { 548 if ($self->{h}{range} =~ /^bytes=(.*)$/i) {
370 for (split /,/, $1) { 549 for (split /,/, $1) {
371 if (/^-(\d+)$/) { 550 if (/^-(\d+)$/) {
372 ($l, $h) = ($length - $1, $length - 1); 551 ($l, $h) = ($length - $1, $length - 1);
373 } elsif (/^(\d+)-(\d*)$/) { 552 } elsif (/^(\d+)-(\d*)$/) {
374 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 553 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
375 } else { 554 } else {
376 ($l, $h) = (0, $length - 1); 555 ($l, $h) = (0, $length - 1);
377 goto ignore; 556 goto ignore;
378 } 557 }
379 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 558 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
380 } 559 }
381 $hdr->{"Content-Range"} = "bytes */$length"; 560 $hdr->{"Content-Range"} = "bytes */$length";
561 $hdr->{"Content-Length"} = $length;
382 $self->err(416, "not satisfiable", $hdr); 562 $self->err (416, "not satisfiable", $hdr, "");
383 563
384satisfiable: 564satisfiable:
385 # check for segmented downloads 565 # check for segmented downloads
386 if ($l && $NO_SEGMENTED) { 566 if ($l && $::NO_SEGMENTED) {
387 if (%{$uri{$self->{uri}}} > 1) { 567 my $timeout = $::NOW + 15;
388 $self->slog("segmented download refused\n"); 568 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
389 $self->err(400, "segmented downloads are not allowed"); 569 if ($timeout <= $::NOW) {
570 $self->block ($::BLOCKTIME, "segmented downloads are forbidden");
571 #$self->err_segmented_download;
572 } else {
573 $httpevent->wait;
574 }
390 } 575 }
391 } 576 }
392 577
393 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 578 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
394 @code = (206, "partial content"); 579 @code = (206, "partial content");
… …
401 586
402 $self->{path} =~ /\.([^.]+)$/; 587 $self->{path} =~ /\.([^.]+)$/;
403 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; 588 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
404 $hdr->{"Content-Length"} = $length; 589 $hdr->{"Content-Length"} = $length;
405 590
406 $self->response(@code, $hdr, ""); 591 $self->response (@code, $hdr, "");
407 592
408 if ($self->{method} eq "GET") { 593 if ($self->{method} eq "GET") {
409 my ($fh, $buf); 594 $self->{time} = $::NOW;
410 open $fh, "<", $self->{path} 595 $self->{written} = 0;
596
597 my $fh = Coro::AIO::aio_open $self->{path}, Fcntl::O_RDONLY, 0
411 or die "$self->{path}: late open failure ($!)"; 598 or die "$self->{path}: late open failure ($!)";
412 599
413 if ($l) {
414 sysseek $fh, $l, 0
415 or die "$self->{path}: cannot seek to $l ($!)";
416 }
417
418 $h -= $l - 1; 600 $h -= $l - 1;
419 601
602 my $transfer = $queue->start_transfer ($h);
603 my $locked;
604 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
605
420 while ($h > 0) { 606 while ($h > 0) {
421 $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; 607 Coro::cede;
422 $self->{fh}->syswrite($buf) 608 my $transfer_lock = $TRANSFER_LOCK->guard ($self->{remote_id});
609
610 unless ($locked) {
611 if ($locked ||= $transfer->try ($::WAIT_INTERVAL)) {
612 $bufsize = $::BUFSIZE;
613 $self->{time} = $::NOW;
614 $self->{written} = 0;
615 }
616 }
617
618 if ($blocked{$self->{remote_id}}) {
619 $self->{h}{connection} = "close";
620 die bless {}, err::;
621 }
622
623 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0
423 or last; 624 or last;
424 }
425 }
426 625
626 $tbf->request (length $buf);
627 my $w = $self->{fh}->syswrite ($buf)
628 or last;
629 $::written += $w;
630 $self->{written} += $w;
631 $l += $w;
632 }
633
427 close $fh; 634 close $fh;
635 }
428} 636}
429 637
4301; 6381
639

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