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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.3 by root, Fri Aug 10 02:28:28 2001 UTC vs.
Revision 1.67 by root, Sun May 19 21:00:47 2002 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
13my $port = new Coro::Socket
14 LocalAddr => $SERVER_HOST,
15 LocalPort => $SERVER_PORT,
16 ReuseAddr => 1,
17 Listen => 1,
18 or die "unable to start server";
19
20$SIG{PIPE} = 'IGNORE'; 19$SIG{PIPE} = 'IGNORE';
21 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
22sub slog { 46sub slog {
23 my $level = shift; 47 my $level = shift;
24 my $format = shift; 48 my $format = shift;
49 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
25 printf "---: $format\n", @_; 50 printf "$NOW: $format\n", @_;
51 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
26} 52}
27 53
28my $connections = new Coro::Semaphore $MAX_CONNECTS; 54our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
55our $httpevent = new Coro::Signal;
29 56
30my @fh; 57our $queue_file = new transferqueue $MAX_TRANSFERS;
58our $queue_index = new transferqueue 10;
59
60our $tbf_top = new tbf rate => 200000;
61
62my @newcons;
31my @pool; 63my @pool;
32 64
33# one "execution thread" 65# one "execution thread"
34sub handler { 66sub handler {
35 while () { 67 while () {
36 my $fh = pop @fh; 68 if (@newcons) {
37 if ($fh) {
38 eval { 69 eval {
39 conn->new($fh)->handle; 70 conn->new(@{pop @newcons})->handle;
40 }; 71 };
41 close $fh;
42 slog 1, "$@" if $@ && !ref $@; 72 slog 1, "$@" if $@ && !ref $@;
73
74 $httpevent->broadcast; # only for testing, but doesn't matter much
75
43 $connections->up; 76 $connections->up;
44 } else { 77 } else {
45 last if @pool >= $MAX_POOL; 78 last if @pool >= $MAX_POOL;
46 push @pool, $Coro::current; 79 push @pool, $Coro::current;
47 schedule; 80 schedule;
48 } 81 }
49 } 82 }
50} 83}
51 84
85sub listen_on {
86 my $listen = $_[0];
87
88 push @listen_sockets, $listen;
89
52# the "main thread" 90 # the "main thread"
53async { 91 async {
54 slog 1, "accepting connections"; 92 slog 1, "accepting connections";
55 while () { 93 while () {
56 $connections->down; 94 $connections->down;
57 push @fh, $port->accept; 95 push @newcons, [$listen->accept];
58 #slog 3, "accepted @$connections ".scalar(@pool); 96 #slog 3, "accepted @$connections ".scalar(@pool);
59 $::NOW = time;
60 if (@pool) { 97 if (@pool) {
61 (pop @pool)->ready; 98 (pop @pool)->ready;
62 } else { 99 } else {
63 async \&handler; 100 async \&handler;
64 } 101 }
65 102
103 }
66 } 104 };
67}; 105}
68 106
69loop; 107my $http_port = new Coro::Socket
70print "ende\n";#d# 108 LocalAddr => $SERVER_HOST,
109 LocalPort => $SERVER_PORT,
110 ReuseAddr => 1,
111 Listen => 50,
112 or die "unable to start server";
113
114listen_on $http_port;
115
116if ($SERVER_PORT2) {
117 my $http_port = new Coro::Socket
118 LocalAddr => $SERVER_HOST,
119 LocalPort => $SERVER_PORT2,
120 ReuseAddr => 1,
121 Listen => 50,
122 or die "unable to start server";
123
124 listen_on $http_port;
125}
71 126
72package conn; 127package conn;
73 128
74use Socket; 129use Socket;
75use HTTP::Date; 130use HTTP::Date;
76use Convert::Scalar 'weaken'; 131use Convert::Scalar 'weaken';
132use Linux::AIO;
77 133
134Linux::AIO::min_parallel $::AIO_PARALLEL;
135
136Event->io(fd => Linux::AIO::poll_fileno,
137 poll => 'r', async => 1,
138 cb => \&Linux::AIO::poll_cb);
139
78our %conn; # $conn{ip}{fh} => connobj 140our %conn; # $conn{ip}{self} => connobj
141our %uri; # $uri{ip}{uri}{self}
79our %blocked; 142our %blocked;
143our %mimetype;
144
145sub read_mimetypes {
146 local *M;
147 if (open M, "<mime_types") {
148 while (<M>) {
149 if (/^([^#]\S+)\t+(\S+)$/) {
150 $mimetype{lc $1} = $2;
151 }
152 }
153 } else {
154 print "cannot open mime_types\n";
155 }
156}
157
158read_mimetypes;
80 159
81sub new { 160sub new {
82 my $class = shift; 161 my $class = shift;
83 my $fh = shift; 162 my $fh = shift;
163 my $peername = shift;
84 my $self = bless { fh => $fh }, $class; 164 my $self = bless { fh => $fh }, $class;
85 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 165 my (undef, $iaddr) = unpack_sockaddr_in $peername
86 or $self->err(500, "unable to get peername"); 166 or $self->err(500, "unable to decode peername");
167
168 $self->{remote_addr} =
87 $self->{remote_addr} = inet_ntoa $iaddr; 169 $self->{remote_id} = inet_ntoa $iaddr;
88 170
89 # enter ourselves into various lists 171 $self->{time} = $::NOW;
90 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
91 172
92 print "$self->{remote_addr}: ".($self*1)." > ".%{$conn{$self->{remote_addr}}},"\n"; 173 weaken ($Coro::current->{conn} = $self);
174
175 $::conns++;
176 $::maxconns = $::conns if $::conns > $::maxconns;
177
93 $self; 178 $self;
94} 179}
95 180
96sub DESTROY { 181sub DESTROY {
97 my $self = shift; 182 #my $self = shift;
98 delete $conn{$self->{remote_addr}}{$self*1}; 183 $::conns--;
99 delete $uri{$self->{uri}}{$self*1};
100} 184}
101 185
102sub slog { 186sub slog {
103 main::slog(@_); 187 my $self = shift;
188 main::slog($_[0], "$self->{remote_id}> $_[1]");
104} 189}
105 190
106sub print_response { 191sub response {
107 my ($self, $code, $msg, $hdr, $content) = @_; 192 my ($self, $code, $msg, $hdr, $content) = @_;
108 my $res = "HTTP/1.0 $code $msg\015\012"; 193 my $res = "HTTP/1.1 $code $msg\015\012";
194 my $GZ = "";
109 195
110 $hdr->{Date} = time2str $::NOW; # slow? nah. 196 if (exists $hdr->{Connection}) {
197 if ($hdr->{Connection} =~ /close/) {
198 $self->{h}{connection} = "close"
199 }
200 } else {
201 if ($self->{version} < 1.1) {
202 if ($self->{h}{connection} =~ /keep-alive/i) {
203 $hdr->{Connection} = "Keep-Alive";
204 } else {
205 $self->{h}{connection} = "close"
206 }
207 }
208 }
209
210 if ($self->{method} ne "HEAD"
211 && $self->{h}{"accept-encoding"} =~ /\bgzip\b/
212 && 400 < length $content
213 && $hdr->{"Content-Length"} == length $content
214 && !exists $hdr->{"Content-Encoding"}
215 ) {
216 my $orig = length $content;
217 $hdr->{"Content-Encoding"} = "gzip";
218 $content = Compress::Zlib::memGzip(\$content);
219 $hdr->{"Content-Length"} = length $content;
220 $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig);
221 }
222
223 $res .= "Date: $HTTP_NOW\015\012";
111 224
112 while (my ($h, $v) = each %$hdr) { 225 while (my ($h, $v) = each %$hdr) {
113 $res .= "$h: $v\015\012" 226 $res .= "$h: $v\015\012"
114 } 227 }
115 $res .= "\015\012$content" if defined $content; 228 $res .= "\015\012";
116 229
117 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 230 $res .= $content if defined $content and $self->{method} ne "HEAD";
118 231
119 print {$self->{fh}} $res; 232 my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW).
233 " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ.
234 " \"$self->{h}{referer}\"\n";
235
236 print $::accesslog $log if $::accesslog;
237 print STDERR $log;
238
239 $tbf_top->request(length $res, 1e6);
240 $self->{written} += print {$self->{fh}} $res;
120} 241}
121 242
122sub err { 243sub err {
123 my $self = shift; 244 my $self = shift;
124 my ($code, $msg, $hdr, $content) = @_; 245 my ($code, $msg, $hdr, $content) = @_;
125 246
126 unless (defined $content) { 247 unless (defined $content) {
127 $content = "$code $msg"; 248 $content = "$code $msg\n";
128 $hdr->{"Content-Type"} = "text/plain"; 249 $hdr->{"Content-Type"} = "text/plain";
129 $hdr->{"Content-Length"} = length $content; 250 $hdr->{"Content-Length"} = length $content;
130 } 251 }
252 $hdr->{"Connection"} = "close";
131 253
132 $self->slog($msg) if $code;
133
134 $self->print_response($code, $msg, $hdr, $content); 254 $self->response($code, $msg, $hdr, $content);
135 255
136 die bless {}, err::; 256 die bless {}, err::;
137} 257}
138 258
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 { "Retry-After" => $::BLOCKTIME },
145 <<EOF);
146You have been blocked because you opened too many connections. You
147may retry at $time. Until then,
148every new access will renew the block.
149EOF
150}
151
152sub handle { 259sub handle {
153 my $self = shift; 260 my $self = shift;
154 my $fh = $self->{fh}; 261 my $fh = $self->{fh};
155 262
263 my $host;
264
265 $fh->timeout($::REQ_TIMEOUT);
156 #while() { 266 while() {
267 $self->{reqs}++;
268
269 # read request and parse first line
270 my $req = $fh->readline("\015\012\015\012");
271
272 unless (defined $req) {
273 if (exists $self->{version}) {
274 last;
275 } else {
276 $self->err(408, "request timeout");
277 }
278 }
279
157 $self->{h} = {}; 280 $self->{h} = {};
158 281
159 # read request and parse first line
160 $fh->timeout($::REQ_TIMEOUT);
161 my $req = $fh->readline("\015\012\015\012");
162 $fh->timeout($::RES_TIMEOUT); 282 $fh->timeout($::RES_TIMEOUT);
163
164 defined $req or
165 $self->err(408, "request timeout");
166
167 my $ip = $self->{remote_addr};
168
169 if ($blocked{$ip}) {
170 $self->err_blocked($blocked{$ip})
171 if $blocked{$ip} > $::NOW;
172
173 delete $blocked{$ip};
174 }
175
176 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
177 $self->slog("blocked ip $ip");
178 $self->err_blocked;
179 }
180 283
181 $req =~ /^(?:\015\012)? 284 $req =~ /^(?:\015\012)?
182 (GET|HEAD) \040+ 285 (GET|HEAD) \040+
183 ([^\040]+) \040+ 286 ([^\040]+) \040+
184 HTTP\/([0-9]+\.[0-9]+) 287 HTTP\/([0-9]+\.[0-9]+)
185 \015\012/gx 288 \015\012/gx
186 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 289 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
187
188 $2 ne "1.0"
189 or $self->err(506, "http protocol version not supported");
190 290
191 $self->{method} = $1; 291 $self->{method} = $1;
192 $self->{uri} = $2; 292 $self->{uri} = $2;
293 $self->{version} = $3;
294
295 $3 =~ /^1\./
296 or $self->err(506, "http protocol version $3 not supported");
193 297
194 # parse headers 298 # parse headers
195 { 299 {
196 my (%hdr, $h, $v); 300 my (%hdr, $h, $v);
197 301
198 $hdr{lc $1} .= ",$2" 302 $hdr{lc $1} .= ",$2"
199 while $req =~ /\G 303 while $req =~ /\G
200 ([^:\000-\040]+): 304 ([^:\000-\040]+):
201 [\008\040]* 305 [\011\040]*
202 ((?: [^\015\012]+ | \015\012[\008\040] )*) 306 ((?: [^\015\012]+ | \015\012[\011\040] )*)
203 \015\012 307 \015\012
204 /gxc; 308 /gxc;
205 309
206 $req =~ /\G\015\012$/ 310 $req =~ /\G\015\012$/
207 or $self->err(400, "bad request"); 311 or $self->err(400, "bad request");
208 312
209 $self->{h}{$h} = substr $v, 1 313 $self->{h}{$h} = substr $v, 1
210 while ($h, $v) = each %hdr; 314 while ($h, $v) = each %hdr;
211 } 315 }
212 316
317 # remote id should be unique per user
318 my $id = $self->{remote_addr};
319
320 if (exists $self->{h}{"client-ip"}) {
321 $id .= "[".$self->{h}{"client-ip"}."]";
322 } elsif (exists $self->{h}{"x-forwarded-for"}) {
323 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
324 }
325
326 $self->{remote_id} = $id;
327
328 weaken (local $conn{$id}{$self*1} = $self);
329
330 if ($blocked{$id}) {
331 $self->err_blocked
332 if $blocked{$id}[0] > $::NOW;
333
334 delete $blocked{$id};
335 }
336
337 # find out server name and port
338 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
339 $host = $1;
340 } else {
341 $host = $self->{h}{host};
342 }
343
344 if (defined $host) {
213 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 345 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
346 } else {
347 ($self->{server_port}, $host)
348 = unpack_sockaddr_in $self->{fh}->sockname
349 or $self->err(500, "unable to get socket name");
350 $host = inet_ntoa $host;
351 }
214 352
353 $self->{server_name} = $host;
354
215 weaken ($uri{$self->{uri}}{$self*1} = $self); 355 weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self);
216 356
357 eval {
217 $self->map_uri; 358 $self->map_uri;
218
219 Coro::Event::do_timer(after => 5);
220
221 $self->respond; 359 $self->respond;
360 };
361
362 die if $@ && !ref $@;
363
364 last if $self->{h}{connection} =~ /close/i;
365
366 $httpevent->broadcast;
367
368 $fh->timeout($::PER_TIMEOUT);
222 #} 369 }
370}
371
372sub block {
373 my $self = shift;
374
375 $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]];
376 $self->slog(2, "blocked ip $self->{remote_id}");
377 $self->err_blocked;
223} 378}
224 379
225# uri => path mapping 380# uri => path mapping
226sub map_uri { 381sub map_uri {
227 my $self = shift; 382 my $self = shift;
228 my $host = $self->{h}{host} || "default"; 383 my $host = $self->{server_name};
229 my $uri = $self->{uri}; 384 my $uri = $self->{uri};
230 385
231 # some massaging, also makes it more secure 386 # some massaging, also makes it more secure
232 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 387 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
233 $uri =~ s%//+%/%g; 388 $uri =~ s%//+%/%g;
… …
239 394
240 $self->{name} = $uri; 395 $self->{name} = $uri;
241 396
242 # now do the path mapping 397 # now do the path mapping
243 $self->{path} = "$::DOCROOT/$host$uri"; 398 $self->{path} = "$::DOCROOT/$host$uri";
244}
245 399
246sub server_address { 400 $self->access_check;
247 my $self = shift;
248 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
249 or $self->err(500, "unable to get socket name");
250 ((inet_ntoa $iaddr), $port);
251}
252
253sub server_host {
254 my $self = shift;
255 if (exists $self->{h}{host}) {
256 return $self->{h}{host};
257 } else {
258 return (($self->server_address)[0]);
259 }
260}
261
262sub server_hostport {
263 my $self = shift;
264 my ($host, $port);
265 if (exists $self->{h}{host}) {
266 ($host, $port) = ($self->{h}{host}, $self->{server_port});
267 } else {
268 ($host, $port) = $self->server_address;
269 }
270 $port = $port == 80 ? "" : ":$port";
271 $host.$port;
272} 401}
273 402
274sub _cgi { 403sub _cgi {
275 my $self = shift; 404 my $self = shift;
276 my $path = shift; 405 my $path = shift;
… …
279 # no two-way xxx supported 408 # no two-way xxx supported
280 if (0 == fork) { 409 if (0 == fork) {
281 open STDOUT, ">&".fileno($self->{fh}); 410 open STDOUT, ">&".fileno($self->{fh});
282 if (chdir $::DOCROOT) { 411 if (chdir $::DOCROOT) {
283 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 412 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
284 $ENV{HTTP_HOST} = $self->server_host; 413 $ENV{HTTP_HOST} = $self->{server_name};
285 $ENV{HTTP_PORT} = $self->{server_host}; 414 $ENV{HTTP_PORT} = $self->{server_port};
286 $ENV{SCRIPT_NAME} = $self->{name}; 415 $ENV{SCRIPT_NAME} = $self->{name};
287 exec $::INDEXPROG; 416 exec $path;
288 } 417 }
289 Coro::State::_exit(0); 418 Coro::State::_exit(0);
290 } else { 419 } else {
420 die;
291 } 421 }
422}
423
424sub server_hostport {
425 $_[0]{server_port} == 80
426 ? $_[0]{server_name}
427 : "$_[0]{server_name}:$_[0]{server_port}";
292} 428}
293 429
294sub respond { 430sub respond {
295 my $self = shift; 431 my $self = shift;
296 my $path = $self->{path}; 432 my $path = $self->{path};
297 433
298 stat $path 434 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
299 or $self->err(404, "not found"); 435 if ($::internal{$1}) {
300 436 $::internal{$1}->($self);
301 # idiotic netscape sends idiotic headers AGAIN
302 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
303 ? str2time $1 : 0;
304
305 if (-d _ && -r _) {
306 # directory
307 if ($path !~ /\/$/) {
308 # create a redirect to get the trailing "/"
309 my $host = $self->server_hostport;
310 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
311 } else { 437 } else {
312 $ims < (stat _)[9] 438 $self->err(404, "not found");
439 }
440 } else {
441
442 stat $path
443 or $self->err(404, "not found");
444
445 $self->{stat} = [stat _];
446
447 # idiotic netscape sends idiotic headers AGAIN
448 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
449 ? str2time $1 : 0;
450
451 if (-d _ && -r _) {
452 # directory
453 if ($path !~ /\/$/) {
454 # create a redirect to get the trailing "/"
455 # we don't try to avoid the :80
456 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
457 } else {
458 $ims < $self->{stat}[9]
313 or $self->err(304, "not modified"); 459 or $self->err(304, "not modified");
314 460
315 if ($self->{method} eq "GET") {
316 if (-r "$path/index.html") { 461 if (-r "$path/index.html") {
462 # replace directory "size" by index.html filesize
317 $self->{path} .= "/index.html"; 463 $self->{stat} = [stat ($self->{path} .= "/index.html")];
318 $self->handle_file; 464 $self->handle_file($queue_index, $tbf_top);
319 } else { 465 } else {
320 $self->handle_dir; 466 $self->handle_dir;
321 } 467 }
322 } 468 }
323 }
324 } elsif (-f _ && -r _) { 469 } elsif (-f _ && -r _) {
325 -x _ and $self->err(403, "forbidden"); 470 -x _ and $self->err(403, "forbidden");
326 $self->handle_file; 471
472 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
473 my $timeout = $::NOW + 10;
474 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
475 if ($timeout < $::NOW) {
476 $self->block($::BLOCKTIME, "too many connections");
477 } else {
478 $httpevent->wait;
479 }
480 }
481 }
482
483 $self->handle_file($queue_file, $tbf_top);
327 } else { 484 } else {
328 $self->err(404, "not found"); 485 $self->err(404, "not found");
486 }
329 } 487 }
330} 488}
331 489
332sub handle_dir { 490sub handle_dir {
333 my $self = shift; 491 my $self = shift;
334 $self->_cgi($::INDEXPROG); 492 my $idx = $self->diridx;
493
494 $self->response(200, "ok",
495 {
496 "Content-Type" => "text/html",
497 "Content-Length" => length $idx,
498 "Last-Modified" => time2str ($self->{stat}[9]),
499 },
500 $idx);
335} 501}
336 502
337sub handle_file { 503sub handle_file {
338 my $self = shift; 504 my ($self, $queue, $tbf) = @_;
339 my $length = -s _; 505 my $length = $self->{stat}[7];
340 my $hdr = { 506 my $hdr = {
341 "Last-Modified" => time2str ((stat _)[9]), 507 "Last-Modified" => time2str ((stat _)[9]),
342 }; 508 };
343 509
344 my @code = (200, "ok"); 510 my @code = (200, "ok");
… …
352 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 518 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
353 } else { 519 } else {
354 ($l, $h) = (0, $length - 1); 520 ($l, $h) = (0, $length - 1);
355 goto ignore; 521 goto ignore;
356 } 522 }
357 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 523 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
358 } 524 }
359 $hdr->{"Content-Range"} = "bytes */$length"; 525 $hdr->{"Content-Range"} = "bytes */$length";
526 $hdr->{"Content-Length"} = $length;
360 $self->err(416, "not satisfiable", $hdr); 527 $self->err(416, "not satisfiable", $hdr, "");
361 528
362satisfiable: 529satisfiable:
530 # check for segmented downloads
531 if ($l && $::NO_SEGMENTED) {
532 my $timeout = $::NOW + 15;
533 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
534 if ($timeout <= $::NOW) {
535 $self->block($::BLOCKTIME, "segmented downloads are forbidden");
536 #$self->err_segmented_download;
537 } else {
538 $httpevent->wait;
539 }
540 }
541 }
542
363 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 543 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
364 @code = (206, "partial content"); 544 @code = (206, "partial content");
365 $length = $h - $l + 1; 545 $length = $h - $l + 1;
366 546
367ignore: 547ignore:
368 } else { 548 } else {
369 ($l, $h) = (0, $length - 1); 549 ($l, $h) = (0, $length - 1);
370 } 550 }
371 551
372 if ($self->{path} =~ /\.html$/) { 552 $self->{path} =~ /\.([^.]+)$/;
373 $hdr->{"Content-Type"} = "text/html";
374 } else {
375 $hdr->{"Content-Type"} = "application/octet-stream"; 553 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
376 }
377
378 $hdr->{"Content-Length"} = $length; 554 $hdr->{"Content-Length"} = $length;
379 555
380 $self->print_response(@code, $hdr, ""); 556 $self->response(@code, $hdr, "");
381 557
382 if ($self->{method} eq "GET") { 558 if ($self->{method} eq "GET") {
559 $self->{time} = $::NOW;
560
561 my $current = $Coro::current;
562
383 my ($fh, $buf); 563 my ($fh, $buf, $r);
564
384 open $fh, "<", $self->{path} 565 open $fh, "<", $self->{path}
385 or die "$self->{path}: late open failure ($!)"; 566 or die "$self->{path}: late open failure ($!)";
386 567
387 if ($l) {
388 sysseek $fh, $l, 0
389 or die "$self->{path}: cannot seek to $l ($!)";
390 }
391
392 $h -= $l - 1; 568 $h -= $l - 1;
393 569
570 if (0) { # !AIO
571 if ($l) {
572 sysseek $fh, $l, 0;
573 }
574 }
575
576 my $transfer = $queue->start_transfer($h);
577 my $locked;
578 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
579
394 while ($h > 0) { 580 while ($h > 0) {
395 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 581 unless ($locked) {
396 print {$self->{fh}} $buf 582 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) {
583 $bufsize = $::BUFSIZE;
584 $self->{time} = $::NOW;
585 }
586 }
587
588 if ($blocked{$self->{remote_id}}) {
589 $self->{h}{connection} = "close";
590 die bless {}, err::;
591 }
592
593 if (0) { # !AIO
594 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
595 or last;
596 } else {
597 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h),
598 $buf, 0, sub {
599 $r = $_[0];
600 Coro::ready($current);
601 });
602 &Coro::schedule;
603 last unless $r;
604 }
605
606 $tbf->request(length $buf);
607 my $w = syswrite $self->{fh}, $buf
397 or last; 608 or last;
609 $::written += $w;
610 $self->{written} += $w;
611 $l += $r;
398 } 612 }
399 }
400 613
401 close $fh; 614 close $fh;
615 }
402} 616}
403 617
4041; 6181;

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