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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.7 by root, Sat Aug 11 00:37:32 2001 UTC vs.
Revision 1.76 by root, Wed Jul 13 13:58:51 2005 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;
6
7use HTTP::Date;
8use POSIX ();
9
10use Compress::Zlib ();
5 11
6no utf8; 12no utf8;
7use bytes; 13use bytes;
8 14
9# at least on my machine, this thingy serves files 15# at least on my machine, this thingy serves files
10# quite a bit faster than apache, ;) 16# quite a bit faster than apache, ;)
11# and quite a bit slower than thttpd :( 17# and quite a bit slower than thttpd :(
12 18
13$SIG{PIPE} = 'IGNORE'; 19$SIG{PIPE} = 'IGNORE';
14 20
21our $accesslog;
22our $errorlog;
23
24our $NOW;
25our $HTTP_NOW;
26
27Event->timer(interval => 1, hard => 1, cb => sub {
28 $NOW = time;
29 $HTTP_NOW = time2str $NOW;
30})->now;
31
32if ($ERROR_LOG) {
33 use IO::Handle;
34 open $errorlog, ">>$ERROR_LOG"
35 or die "$ERROR_LOG: $!";
36 $errorlog->autoflush(1);
37}
38
39if ($ACCESS_LOG) {
40 use IO::Handle;
41 open $accesslog, ">>$ACCESS_LOG"
42 or die "$ACCESS_LOG: $!";
43 $accesslog->autoflush(1);
44}
45
15sub slog { 46sub slog {
16 my $level = shift; 47 my $level = shift;
17 my $format = shift; 48 my $format = shift;
49 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
18 printf "---: $format\n", @_; 50 printf "$NOW: $format\n", @_;
51 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
19} 52}
20 53
21my $connections = new Coro::Semaphore $MAX_CONNECTS; 54our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
55our $httpevent = new Coro::Signal;
56
57our $queue_file = new transferqueue $MAX_TRANSFERS;
58our $queue_index = new transferqueue 10;
59
60our $tbf_top = new tbf rate => $TBF_RATE || 100000;
61
62my $unused_bytes = 0;
63my $unused_last = time;
64
65sub unused_bandwidth {
66 $unused_bytes += $_[0];
67 if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) {
68 $unused_last = $NOW;
69 $unused_bytes = 0;
70 $queue_file->force_wake_next;
71 slog 1, "forced filetransfer due to unused bandwidth";
72 }
73}
22 74
23my @newcons; 75my @newcons;
24my @pool; 76my @pool;
25 77
26# one "execution thread" 78# one "execution thread"
27sub handler { 79sub handler {
28 while () { 80 while () {
29 my $new = pop @newcons;
30 if ($new) { 81 if (@newcons) {
31 eval { 82 eval {
32 conn->new(@$new)->handle; 83 conn->new(@{pop @newcons})->handle;
33 }; 84 };
34 slog 1, "$@" if $@ && !ref $@; 85 slog 1, "$@" if $@ && !ref $@;
86
87 $httpevent->broadcast; # only for testing, but doesn't matter much
88
35 $connections->up; 89 $connections->up;
36 } else { 90 } else {
37 last if @pool >= $MAX_POOL; 91 last if @pool >= $MAX_POOL;
38 push @pool, $Coro::current; 92 push @pool, $Coro::current;
39 schedule; 93 schedule;
40 } 94 }
41 } 95 }
42} 96}
43 97
98sub listen_on {
99 my $listen = $_[0];
100
101 push @listen_sockets, $listen;
102
103 # the "main thread"
104 async {
105 slog 1, "accepting connections";
106 while () {
107 $connections->down;
108 push @newcons, [$listen->accept];
109 #slog 3, "accepted @$connections ".scalar(@pool);
110 if (@pool) {
111 (pop @pool)->ready;
112 } else {
113 async \&handler;
114 }
115 }
116 };
117}
118
44my $http_port = new Coro::Socket 119my $http_port = new Coro::Socket
45 LocalAddr => $SERVER_HOST, 120 LocalAddr => $SERVER_HOST,
46 LocalPort => $SERVER_PORT, 121 LocalPort => $SERVER_PORT,
47 ReuseAddr => 1, 122 ReuseAddr => 1,
48 Listen => 1, 123 Listen => 50,
49 or die "unable to start server"; 124 or die "unable to start server";
50 125
51push @listen_sockets, $http_port; 126listen_on $http_port;
52 127
53# the "main thread" 128if ($SERVER_PORT2) {
54async { 129 my $http_port = new Coro::Socket
55 slog 1, "accepting connections"; 130 LocalAddr => $SERVER_HOST,
56 while () { 131 LocalPort => $SERVER_PORT2,
57 $connections->down; 132 ReuseAddr => 1,
58 push @newcons, [$http_port->accept]; 133 Listen => 50,
59 #slog 3, "accepted @$connections ".scalar(@pool); 134 or die "unable to start server";
60 $::NOW = time;
61 if (@pool) {
62 (pop @pool)->ready;
63 } else {
64 async \&handler;
65 }
66 135
67 } 136 listen_on $http_port;
68}; 137}
69 138
70package conn; 139package conn;
71 140
72use Socket; 141use Socket;
73use HTTP::Date; 142use HTTP::Date;
74use Convert::Scalar 'weaken'; 143use Convert::Scalar 'weaken';
144use Linux::AIO;
75 145
146Linux::AIO::min_parallel $::AIO_PARALLEL;
147
148Event->io(fd => Linux::AIO::poll_fileno,
149 poll => 'r', async => 1,
150 cb => \&Linux::AIO::poll_cb);
151
76our %conn; # $conn{ip}{fh} => connobj 152our %conn; # $conn{ip}{self} => connobj
153our %uri; # $uri{ip}{uri}{self}
77our %blocked; 154our %blocked;
155our %mimetype;
156
157sub read_mimetypes {
158 local *M;
159 if (open M, "<mime_types") {
160 while (<M>) {
161 if (/^([^#]\S+)\t+(\S+)$/) {
162 $mimetype{lc $1} = $2;
163 }
164 }
165 } else {
166 print "cannot open mime_types\n";
167 }
168}
169
170read_mimetypes;
78 171
79sub new { 172sub new {
80 my $class = shift; 173 my $class = shift;
174 my $fh = shift;
81 my $peername = shift; 175 my $peername = shift;
82 my $fh = shift;
83 my $self = bless { fh => $fh }, $class; 176 my $self = bless { fh => $fh }, $class;
84 my (undef, $iaddr) = unpack_sockaddr_in $peername 177 my (undef, $iaddr) = unpack_sockaddr_in $peername
85 or $self->err(500, "unable to decode peername"); 178 or $self->err(500, "unable to decode peername");
86 179
180 $self->{remote_addr} =
87 $self->{remote_addr} = inet_ntoa $iaddr; 181 $self->{remote_id} = inet_ntoa $iaddr;
88 182
89 # enter ourselves into various lists 183 $self->{time} = $::NOW;
90 weaken ($conn{$self->{remote_addr}}{$self*1} = $self); 184
185 weaken ($Coro::current->{conn} = $self);
186
187 $::conns++;
188 $::maxconns = $::conns if $::conns > $::maxconns;
91 189
92 $self; 190 $self;
93} 191}
94 192
95sub DESTROY { 193sub DESTROY {
96 my $self = shift; 194 #my $self = shift;
97 delete $conn{$self->{remote_addr}}{$self*1}; 195 $::conns--;
98 delete $uri{$self->{uri}}{$self*1};
99} 196}
197
198sub prune_cache {
199 my $hash = $_[0];
200
201 for (keys %$hash) {
202 if (ref $hash->{$_} eq HASH::) {
203 prune_cache($hash->{$_});
204 unless (scalar keys %{$hash->{$_}}) {
205 delete $hash->{$_};
206 $d2++;
207 }
208 }
209 }
210}
211
212sub prune_caches {
213 prune_cache \%conn;
214 prune_cache \%uri;
215
216 for (keys %blocked) {
217 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
218 }
219}
220
221Event->timer(interval => 60, cb => \&prune_caches);
100 222
101sub slog { 223sub slog {
102 my $self = shift; 224 my $self = shift;
103 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 225 main::slog($_[0], "$self->{remote_id}> $_[1]");
104} 226}
105 227
106sub response { 228sub response {
107 my ($self, $code, $msg, $hdr, $content) = @_; 229 my ($self, $code, $msg, $hdr, $content) = @_;
108 my $res = "HTTP/1.0 $code $msg\015\012"; 230 my $res = "HTTP/1.1 $code $msg\015\012";
231 my $GZ = "";
109 232
110 $res .= "Connection: close\015\012"; 233 if (exists $hdr->{Connection}) {
111 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 234 if ($hdr->{Connection} =~ /close/) {
235 $self->{h}{connection} = "close"
236 }
237 } else {
238 if ($self->{version} < 1.1) {
239 if ($self->{h}{connection} =~ /keep-alive/i) {
240 $hdr->{Connection} = "Keep-Alive";
241 } else {
242 $self->{h}{connection} = "close"
243 }
244 }
245 }
246
247 if ($self->{method} ne "HEAD"
248 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
249 && 400 < length $content
250 && $hdr->{"Content-Length"} == length $content
251 && !exists $hdr->{"Content-Encoding"}
252 ) {
253 my $orig = length $content;
254 $hdr->{"Content-Encoding"} = "gzip";
255 $content = Compress::Zlib::memGzip(\$content);
256 $hdr->{"Content-Length"} = length $content;
257 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
258 }
259
260 $res .= "Date: $HTTP_NOW\015\012";
261 $res .= "Server: $::NAME\015\012";
112 262
113 while (my ($h, $v) = each %$hdr) { 263 while (my ($h, $v) = each %$hdr) {
114 $res .= "$h: $v\015\012" 264 $res .= "$h: $v\015\012"
115 } 265 }
266 $res .= "\015\012";
116 267
117 $res .= "\015\012$content" if defined $content; 268 $res .= $content if defined $content and $self->{method} ne "HEAD";
118 269
119 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 270 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
271 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
272 " \"$self->{h}{referer}\"\n";
120 273
121 print {$self->{fh}} $res; 274 print $::accesslog $log if $::accesslog;
275 print STDERR $log;
276
277 $tbf_top->request(length $res, 1e6);
278 $self->{written} += print {$self->{fh}} $res;
122} 279}
123 280
124sub err { 281sub err {
125 my $self = shift; 282 my $self = shift;
126 my ($code, $msg, $hdr, $content) = @_; 283 my ($code, $msg, $hdr, $content) = @_;
127 284
128 unless (defined $content) { 285 unless (defined $content) {
129 $content = "$code $msg"; 286 $content = "$code $msg\n";
130 $hdr->{"Content-Type"} = "text/plain"; 287 $hdr->{"Content-Type"} = "text/plain";
131 $hdr->{"Content-Length"} = length $content; 288 $hdr->{"Content-Length"} = length $content;
132 } 289 }
290 $hdr->{"Connection"} = "close";
133 291
134 $self->response($code, $msg, $hdr, $content); 292 $self->response($code, $msg, $hdr, $content);
135 293
136 die bless {}, err::; 294 die bless {}, err::;
137} 295}
138 296
139sub err_blocked {
140 my $self = shift;
141 my $ip = $self->{remote_addr};
142 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
143 $self->err(403, "too many connections",
144 {
145 "Content-Type" => "text/html",
146 "Retry-After" => $::BLOCKTIME
147 },
148 <<EOF);
149<html><p>
150You have been blocked because you opened too many connections. You
151may retry at</p>
152
153 <p><blockquote>$time.</blockquote></p>
154
155<p>Until then, each new access will renew the block. You might want to have a
156look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
157</html>
158EOF
159}
160
161sub handle { 297sub handle {
162 my $self = shift; 298 my $self = shift;
163 my $fh = $self->{fh}; 299 my $fh = $self->{fh};
164 300
301 my $host;
302
303 $fh->timeout($::REQ_TIMEOUT);
165 #while() { 304 while() {
305 $self->{reqs}++;
306
307 # read request and parse first line
308 my $req = $fh->readline("\015\012\015\012");
309
310 unless (defined $req) {
311 if (exists $self->{version}) {
312 last;
313 } else {
314 $self->err(408, "request timeout");
315 }
316 }
317
166 $self->{h} = {}; 318 $self->{h} = {};
167 319
168 # read request and parse first line
169 $fh->timeout($::REQ_TIMEOUT);
170 my $req = $fh->readline("\015\012\015\012");
171 $fh->timeout($::RES_TIMEOUT); 320 $fh->timeout($::RES_TIMEOUT);
172
173 defined $req or
174 $self->err(408, "request timeout");
175
176 my $ip = $self->{remote_addr};
177
178 if ($blocked{$ip}) {
179 $self->err_blocked($blocked{$ip})
180 if $blocked{$ip} > $::NOW;
181
182 delete $blocked{$ip};
183 }
184
185 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
186 $self->slog("blocked ip $ip");
187 $self->err_blocked;
188 }
189 321
190 $req =~ /^(?:\015\012)? 322 $req =~ /^(?:\015\012)?
191 (GET|HEAD) \040+ 323 (GET|HEAD) \040+
192 ([^\040]+) \040+ 324 ([^\040]+) \040+
193 HTTP\/([0-9]+\.[0-9]+) 325 HTTP\/([0-9]+\.[0-9]+)
194 \015\012/gx 326 \015\012/gx
195 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 327 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
196
197 $2 ne "1.0"
198 or $self->err(506, "http protocol version not supported");
199 328
200 $self->{method} = $1; 329 $self->{method} = $1;
201 $self->{uri} = $2; 330 $self->{uri} = $2;
331 $self->{version} = $3;
332
333 $3 =~ /^1\./
334 or $self->err(506, "http protocol version $3 not supported");
202 335
203 # parse headers 336 # parse headers
204 { 337 {
205 my (%hdr, $h, $v); 338 my (%hdr, $h, $v);
206 339
207 $hdr{lc $1} .= ",$2" 340 $hdr{lc $1} .= ",$2"
208 while $req =~ /\G 341 while $req =~ /\G
209 ([^:\000-\040]+): 342 ([^:\000-\040]+):
210 [\008\040]* 343 [\011\040]*
211 ((?: [^\015\012]+ | \015\012[\008\040] )*) 344 ((?: [^\015\012]+ | \015\012[\011\040] )*)
212 \015\012 345 \015\012
213 /gxc; 346 /gxc;
214 347
215 $req =~ /\G\015\012$/ 348 $req =~ /\G\015\012$/
216 or $self->err(400, "bad request"); 349 or $self->err(400, "bad request");
217 350
218 $self->{h}{$h} = substr $v, 1 351 $self->{h}{$h} = substr $v, 1
219 while ($h, $v) = each %hdr; 352 while ($h, $v) = each %hdr;
220 } 353 }
221 354
355 # remote id should be unique per user
356 my $id = $self->{remote_addr};
357
358 if (exists $self->{h}{"client-ip"}) {
359 $id .= "[".$self->{h}{"client-ip"}."]";
360 } elsif (exists $self->{h}{"x-forwarded-for"}) {
361 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
362 }
363
364 $self->{remote_id} = $id;
365
366 weaken (local $conn{$id}{$self*1} = $self);
367
368 if ($blocked{$id}) {
369 $self->err_blocked
370 if $blocked{$id}[0] > $::NOW;
371
372 delete $blocked{$id};
373 }
374
375 # find out server name and port
376 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
377 $host = $1;
378 } else {
379 $host = $self->{h}{host};
380 }
381
382 if (defined $host) {
222 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 383 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
384 } else {
385 ($self->{server_port}, $host)
386 = unpack_sockaddr_in $self->{fh}->sockname
387 or $self->err(500, "unable to get socket name");
388 $host = inet_ntoa $host;
389 }
223 390
391 $self->{server_name} = $host;
392
224 weaken ($uri{$self->{uri}}{$self*1} = $self); 393 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
225 394
395 eval {
226 $self->map_uri; 396 $self->map_uri;
227 $self->respond; 397 $self->respond;
398 };
399
400 die if $@ && !ref $@;
401
402 last if $self->{h}{connection} =~ /close/i;
403
404 $httpevent->broadcast;
405
406 $fh->timeout($::PER_TIMEOUT);
228 #} 407 }
408}
409
410sub block {
411 my $self = shift;
412
413 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
414 $self->slog(2, "blocked ip $self->{remote_id}");
415 $self->err_blocked;
229} 416}
230 417
231# uri => path mapping 418# uri => path mapping
232sub map_uri { 419sub map_uri {
233 my $self = shift; 420 my $self = shift;
234 my $host = $self->{h}{host} || "default"; 421 my $host = $self->{server_name};
235 my $uri = $self->{uri}; 422 my $uri = $self->{uri};
236 423
237 # some massaging, also makes it more secure 424 # some massaging, also makes it more secure
238 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 425 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
239 $uri =~ s%//+%/%g; 426 $uri =~ s%//+%/%g;
… …
249 $self->{path} = "$::DOCROOT/$host$uri"; 436 $self->{path} = "$::DOCROOT/$host$uri";
250 437
251 $self->access_check; 438 $self->access_check;
252} 439}
253 440
254sub server_address {
255 my $self = shift;
256 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
257 or $self->err(500, "unable to get socket name");
258 ((inet_ntoa $iaddr), $port);
259}
260
261sub server_host {
262 my $self = shift;
263 if (exists $self->{h}{host}) {
264 return $self->{h}{host};
265 } else {
266 return (($self->server_address)[0]);
267 }
268}
269
270sub server_hostport {
271 my $self = shift;
272 my ($host, $port);
273 if (exists $self->{h}{host}) {
274 ($host, $port) = ($self->{h}{host}, $self->{server_port});
275 } else {
276 ($host, $port) = $self->server_address;
277 }
278 $port = $port == 80 ? "" : ":$port";
279 $host.$port;
280}
281
282sub _cgi { 441sub _cgi {
283 my $self = shift; 442 my $self = shift;
284 my $path = shift; 443 my $path = shift;
285 my $fh; 444 my $fh;
286 445
287 # no two-way xxx supported 446 # no two-way xxx supported
288 if (0 == fork) { 447 if (0 == fork) {
289 open STDOUT, ">&".fileno($self->{fh}); 448 open STDOUT, ">&".fileno($self->{fh});
290 if (chdir $::DOCROOT) { 449 if (chdir $::DOCROOT) {
291 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 450 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
292 $ENV{HTTP_HOST} = $self->server_host; 451 $ENV{HTTP_HOST} = $self->{server_name};
293 $ENV{HTTP_PORT} = $self->{server_host}; 452 $ENV{HTTP_PORT} = $self->{server_port};
294 $ENV{SCRIPT_NAME} = $self->{name}; 453 $ENV{SCRIPT_NAME} = $self->{name};
295 exec $::INDEXPROG; 454 exec $path;
296 } 455 }
297 Coro::State::_exit(0); 456 Coro::State::_exit(0);
298 } else { 457 } else {
458 die;
299 } 459 }
460}
461
462sub server_hostport {
463 $_[0]{server_port} == 80
464 ? $_[0]{server_name}
465 : "$_[0]{server_name}:$_[0]{server_port}";
300} 466}
301 467
302sub respond { 468sub respond {
303 my $self = shift; 469 my $self = shift;
304 my $path = $self->{path}; 470 my $path = $self->{path};
305 471
306 stat $path 472 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
307 or $self->err(404, "not found"); 473 if ($::internal{$1}) {
308 474 $::internal{$1}->($self);
309 # idiotic netscape sends idiotic headers AGAIN
310 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
311 ? str2time $1 : 0;
312
313 if (-d _ && -r _) {
314 # directory
315 if ($path !~ /\/$/) {
316 # create a redirect to get the trailing "/"
317 my $host = $self->server_hostport;
318 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
319 } else { 475 } else {
320 $ims < (stat _)[9] 476 $self->err(404, "not found");
477 }
478 } else {
479
480 stat $path
481 or $self->err(404, "not found");
482
483 $self->{stat} = [stat _];
484
485 # idiotic netscape sends idiotic headers AGAIN
486 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
487 ? str2time $1 : 0;
488
489 if (-d _ && -r _) {
490 # directory
491 if ($path !~ /\/$/) {
492 # create a redirect to get the trailing "/"
493 # we don't try to avoid the :80
494 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
495 } else {
496 $ims < $self->{stat}[9]
321 or $self->err(304, "not modified"); 497 or $self->err(304, "not modified");
322 498
323 if ($self->{method} eq "GET") {
324 if (-r "$path/index.html") { 499 if (-r "$path/index.html") {
500 # replace directory "size" by index.html filesize
325 $self->{path} .= "/index.html"; 501 $self->{stat} = [stat ($self->{path} .= "/index.html")];
326 $self->handle_file; 502 $self->handle_file($queue_index, $tbf_top);
327 } else { 503 } else {
328 $self->handle_dir; 504 $self->handle_dir;
329 } 505 }
330 } 506 }
331 }
332 } elsif (-f _ && -r _) { 507 } elsif (-f _ && -r _) {
333 -x _ and $self->err(403, "forbidden"); 508 -x _ and $self->err(403, "forbidden");
334 $self->handle_file; 509
510 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
511 my $timeout = $::NOW + 10;
512 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
513 if ($timeout < $::NOW) {
514 $self->block($::BLOCKTIME, "too many connections");
515 } else {
516 $httpevent->wait;
517 }
518 }
519 }
520
521 $self->handle_file($queue_file, $tbf_top);
335 } else { 522 } else {
336 $self->err(404, "not found"); 523 $self->err(404, "not found");
524 }
337 } 525 }
338} 526}
339 527
340sub handle_dir { 528sub handle_dir {
341 my $self = shift; 529 my $self = shift;
342 $self->_cgi($::INDEXPROG); 530 my $idx = $self->diridx;
531
532 $self->response(200, "ok",
533 {
534 "Content-Type" => "text/html; charset=utf-8",
535 "Content-Length" => length $idx,
536 "Last-Modified" => time2str ($self->{stat}[9]),
537 },
538 $idx);
343} 539}
344 540
345sub handle_file { 541sub handle_file {
346 my $self = shift; 542 my ($self, $queue, $tbf) = @_;
347 my $length = -s _; 543 my $length = $self->{stat}[7];
348 my $hdr = { 544 my $hdr = {
349 "Last-Modified" => time2str ((stat _)[9]), 545 "Last-Modified" => time2str ((stat _)[9]),
546 "Accept-Ranges" => "bytes",
350 }; 547 };
351 548
352 my @code = (200, "ok"); 549 my @code = (200, "ok");
353 my ($l, $h); 550 my ($l, $h);
354 551
… …
360 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 557 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
361 } else { 558 } else {
362 ($l, $h) = (0, $length - 1); 559 ($l, $h) = (0, $length - 1);
363 goto ignore; 560 goto ignore;
364 } 561 }
365 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 562 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
366 } 563 }
367 $hdr->{"Content-Range"} = "bytes */$length"; 564 $hdr->{"Content-Range"} = "bytes */$length";
565 $hdr->{"Content-Length"} = $length;
368 $self->err(416, "not satisfiable", $hdr); 566 $self->err(416, "not satisfiable", $hdr, "");
369 567
370satisfiable: 568satisfiable:
371 # check for segmented downloads 569 # check for segmented downloads
372 if ($l && $NO_SEGMENTED) { 570 if ($l && $::NO_SEGMENTED) {
373 if (%{$uri{$self->{uri}}} > 1) { 571 my $timeout = $::NOW + 15;
374 $self->slog("segmented download refused\n"); 572 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
375 $self->err(400, "segmented downloads are not allowed"); 573 if ($timeout <= $::NOW) {
574 $self->block($::BLOCKTIME, "segmented downloads are forbidden");
575 #$self->err_segmented_download;
576 } else {
577 $httpevent->wait;
578 }
376 } 579 }
377 } 580 }
378 581
379 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 582 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
380 @code = (206, "partial content"); 583 @code = (206, "partial content");
… …
383ignore: 586ignore:
384 } else { 587 } else {
385 ($l, $h) = (0, $length - 1); 588 ($l, $h) = (0, $length - 1);
386 } 589 }
387 590
388 if ($self->{path} =~ /\.html$/) { 591 $self->{path} =~ /\.([^.]+)$/;
389 $hdr->{"Content-Type"} = "text/html";
390 } else {
391 $hdr->{"Content-Type"} = "application/octet-stream"; 592 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
392 }
393
394 $hdr->{"Content-Length"} = $length; 593 $hdr->{"Content-Length"} = $length;
395 594
396 $self->response(@code, $hdr, ""); 595 $self->response(@code, $hdr, "");
397 596
398 if ($self->{method} eq "GET") { 597 if ($self->{method} eq "GET") {
598 $self->{time} = $::NOW;
599 $self->{written} = 0;
600
601 my $current = $Coro::current;
602
399 my ($fh, $buf); 603 my ($fh, $buf, $r);
604
400 open $fh, "<", $self->{path} 605 open $fh, "<", $self->{path}
401 or die "$self->{path}: late open failure ($!)"; 606 or die "$self->{path}: late open failure ($!)";
402 607
403 if ($l) {
404 sysseek $fh, $l, 0
405 or die "$self->{path}: cannot seek to $l ($!)";
406 }
407
408 $h -= $l - 1; 608 $h -= $l - 1;
409 609
610 if (0) { # !AIO
611 if ($l) {
612 sysseek $fh, $l, 0;
613 }
614 }
615
616 my $transfer = $queue->start_transfer($h);
617 my $locked;
618 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
619
410 while ($h > 0) { 620 while ($h > 0) {
411 $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; 621 unless ($locked) {
412 $self->{fh}->syswrite($buf) 622 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
623 $bufsize = $::BUFSIZE;
624 $self->{time} = $::NOW;
625 $self->{written} = 0;
626 }
627 }
628
629 if ($blocked{$self->{remote_id}}) {
630 $self->{h}{connection} = "close";
631 die bless {}, err::;
632 }
633
634 if (0) { # !AIO
635 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
636 or last;
637 } else {
638 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h),
639 $buf, 0, sub {
640 $r = $_[0];
641 Coro::ready($current);
642 });
643 &Coro::schedule;
644 last unless $r;
645 }
646
647 $tbf->request(length $buf);
648 my $w = syswrite $self->{fh}, $buf
413 or last; 649 or last;
650 $::written += $w;
651 $self->{written} += $w;
652 $l += $r;
414 } 653 }
415 }
416 654
417 close $fh; 655 close $fh;
418}
419
420sub access_check {
421 my $self = shift;
422 my $whois = ::ip_request($self->{remote_addr});
423
424 if ($whois =~ /^\*cy: (\S+)/m) {
425 $self->slog(9, "COUNTRY($1)");
426 } else {
427 $self->slog(9, "no country($whois)");
428 } 656 }
429} 657}
430 658
4311; 6591;

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