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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.15 by root, Tue Aug 14 02:28:51 2001 UTC vs.
Revision 1.32 by root, Wed Aug 29 01:32:50 2001 UTC

1use Coro; 1use Coro;
2use Coro::Semaphore; 2use Coro::Semaphore;
3use Coro::Event; 3use Coro::Event;
4use Coro::Socket; 4use Coro::Socket;
5 5
6use HTTP::Date;
7
6no utf8; 8no utf8;
7use bytes; 9use bytes;
10
11our @wait_time = (0); # used to calculcate avg. waiting time
8 12
9# at least on my machine, this thingy serves files 13# at least on my machine, this thingy serves files
10# quite a bit faster than apache, ;) 14# quite a bit faster than apache, ;)
11# and quite a bit slower than thttpd :( 15# and quite a bit slower than thttpd :(
12 16
13$SIG{PIPE} = 'IGNORE'; 17$SIG{PIPE} = 'IGNORE';
14 18
19our $accesslog;
20
21if ($ACCESS_LOG) {
22 use IO::Handle;
23 open $accesslog, ">>$ACCESS_LOG"
24 or die "$ACCESS_LOG: $!";
25 $accesslog->autoflush(1);
26}
27
15sub slog { 28sub slog {
16 my $level = shift; 29 my $level = shift;
17 my $format = shift; 30 my $format = shift;
18 printf "---: $format\n", @_; 31 printf "---: $format\n", @_;
19} 32}
20 33
21my $connections = new Coro::Semaphore $MAX_CONNECTS; 34our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
35our $transfers = new Coro::Semaphore $MAX_TRANSFER || 50;
22 36
23my @newcons; 37my @newcons;
24my @pool; 38my @pool;
25 39
26# one "execution thread" 40# one "execution thread"
… …
48 Listen => 50, 62 Listen => 50,
49 or die "unable to start server"; 63 or die "unable to start server";
50 64
51push @listen_sockets, $http_port; 65push @listen_sockets, $http_port;
52 66
67our $NOW;
68our $HTTP_NOW;
69
70Event->timer(interval => 1, hard => 1, cb => sub {
71 $NOW = time;
72 $HTTP_NOW = time2str $NOW;
73});
74
53# the "main thread" 75# the "main thread"
54async { 76async {
55 slog 1, "accepting connections"; 77 slog 1, "accepting connections";
56 while () { 78 while () {
57 $connections->down; 79 $connections->down;
58 push @newcons, [$http_port->accept]; 80 push @newcons, [$http_port->accept];
59 #slog 3, "accepted @$connections ".scalar(@pool); 81 #slog 3, "accepted @$connections ".scalar(@pool);
60 $::NOW = time;
61 if (@pool) { 82 if (@pool) {
62 (pop @pool)->ready; 83 (pop @pool)->ready;
63 } else { 84 } else {
64 async \&handler; 85 async \&handler;
65 } 86 }
… …
70package conn; 91package conn;
71 92
72use Socket; 93use Socket;
73use HTTP::Date; 94use HTTP::Date;
74use Convert::Scalar 'weaken'; 95use Convert::Scalar 'weaken';
96use Linux::AIO;
75 97
98Linux::AIO::min_parallel $::AIO_PARALLEL;
99
100my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
101
102Event->io(fd => Linux::AIO::poll_fileno,
103 poll => 'r', async => 1,
104 cb => \&Linux::AIO::poll_cb);
105
76our %conn; # $conn{ip}{fh} => connobj 106our %conn; # $conn{ip}{self} => connobj
107our %uri; # $uri{ip}{uri}{self}
77our %blocked; 108our %blocked;
78our %mimetype; 109our %mimetype;
79 110
80sub read_mimetypes { 111sub read_mimetypes {
81 local *M; 112 local *M;
… …
114sub DESTROY { 145sub DESTROY {
115 my $self = shift; 146 my $self = shift;
116 147
117 $::conns--; 148 $::conns--;
118 149
150 $self->eoconn;
119 delete $conn{$self->{remote_addr}}{$self*1}; 151 delete $conn{$self->{remote_addr}}{$self*1};
152}
153
154# end of connection
155sub eoconn {
156 my $self = shift;
120 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 157 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
121} 158}
122 159
123sub slog { 160sub slog {
124 my $self = shift; 161 my $self = shift;
125 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 162 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
126} 163}
127 164
128sub response { 165sub response {
129 my ($self, $code, $msg, $hdr, $content) = @_; 166 my ($self, $code, $msg, $hdr, $content) = @_;
130 my $res = "HTTP/1.0 $code $msg\015\012"; 167 my $res = "HTTP/1.1 $code $msg\015\012";
131 168
132 $res .= "Connection: close\015\012"; 169 $self->{h}{connection} ||= $hdr->{Connection};
133 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 170
171 $res .= "Date: $HTTP_NOW\015\012";
134 172
135 while (my ($h, $v) = each %$hdr) { 173 while (my ($h, $v) = each %$hdr) {
136 $res .= "$h: $v\015\012" 174 $res .= "$h: $v\015\012"
137 } 175 }
138 $res .= "\015\012"; 176 $res .= "\015\012";
139 177
140 $res .= $content if defined $content and $self->{method} ne "HEAD"; 178 $res .= $content if defined $content and $self->{method} ne "HEAD";
141 179
142 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 180 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
181
182 print $accesslog $log if $accesslog;
183 print STDERR $log;
143 184
144 $self->{written} += 185 $self->{written} +=
145 print {$self->{fh}} $res; 186 print {$self->{fh}} $res;
146} 187}
147 188
… …
152 unless (defined $content) { 193 unless (defined $content) {
153 $content = "$code $msg"; 194 $content = "$code $msg";
154 $hdr->{"Content-Type"} = "text/plain"; 195 $hdr->{"Content-Type"} = "text/plain";
155 $hdr->{"Content-Length"} = length $content; 196 $hdr->{"Content-Length"} = length $content;
156 } 197 }
198 $hdr->{"Connection"} = "close";
157 199
158 $self->response($code, $msg, $hdr, $content); 200 $self->response($code, $msg, $hdr, $content);
159 201
160 die bless {}, err::; 202 die bless {}, err::;
161} 203}
162 204
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}
187
188sub handle { 205sub handle {
189 my $self = shift; 206 my $self = shift;
190 my $fh = $self->{fh}; 207 my $fh = $self->{fh};
191 208
209 my $host;
210
211 $fh->timeout($::REQ_TIMEOUT);
192 #while() { 212 while() {
213 $self->{reqs}++;
214
215 # read request and parse first line
216 my $req = $fh->readline("\015\012\015\012");
217
218 unless (defined $req) {
219 if (exists $self->{version}) {
220 last;
221 } else {
222 $self->err(408, "request timeout");
223 }
224 }
225
193 $self->{h} = {}; 226 $self->{h} = {};
194 227
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); 228 $fh->timeout($::RES_TIMEOUT);
199
200 defined $req or
201 $self->err(408, "request timeout");
202
203 my $ip = $self->{remote_addr}; 229 my $ip = $self->{remote_addr};
204 230
205 if ($blocked{$ip}) { 231 if ($blocked{$ip}) {
206 $self->err_blocked($blocked{$ip}) 232 $self->err_blocked($blocked{$ip})
207 if $blocked{$ip} > $::NOW; 233 if $blocked{$ip} > $::NOW;
208 234
209 delete $blocked{$ip}; 235 delete $blocked{$ip};
210 } 236 }
211 237
212 if (%{$conn{$ip}} > $::MAX_CONN_IP) { 238 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
239 my $delay = 120;
240 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
241 if ($delay <= 0) {
213 $self->slog(2, "blocked ip $ip"); 242 $self->slog(2, "blocked ip $ip");
214 $self->err_blocked; 243 $self->err_blocked;
244 } else {
245 Coro::Event::do_timer(after => 3);
246 $delay -= 3;
247 }
248 }
215 } 249 }
216 250
217 $req =~ /^(?:\015\012)? 251 $req =~ /^(?:\015\012)?
218 (GET|HEAD) \040+ 252 (GET|HEAD) \040+
219 ([^\040]+) \040+ 253 ([^\040]+) \040+
220 HTTP\/([0-9]+\.[0-9]+) 254 HTTP\/([0-9]+\.[0-9]+)
221 \015\012/gx 255 \015\012/gx
222 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" }); 256 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
223 257
224 $2 ne "1.0"
225 or $self->err(506, "http protocol version not supported");
226
227 $self->{method} = $1; 258 $self->{method} = $1;
228 $self->{uri} = $2; 259 $self->{uri} = $2;
260 $self->{version} = $3;
261
262 $3 =~ /^1\./
263 or $self->err(506, "http protocol version $3 not supported");
229 264
230 # parse headers 265 # parse headers
231 { 266 {
232 my (%hdr, $h, $v); 267 my (%hdr, $h, $v);
233 268
… …
244 279
245 $self->{h}{$h} = substr $v, 1 280 $self->{h}{$h} = substr $v, 1
246 while ($h, $v) = each %hdr; 281 while ($h, $v) = each %hdr;
247 } 282 }
248 283
284 # find out server name and port
285 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
286 $host = $1;
287 } else {
288 $host = $self->{h}{host};
289 }
290
291 if (defined $host) {
249 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 292 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
293 } else {
294 ($self->{server_port}, $host)
295 = unpack_sockaddr_in $self->{fh}->getsockname
296 or $self->err(500, "unable to get socket name");
297 $host = inet_ntoa $host;
298 }
299
300 $self->{server_name} = $host;
301
302 # remote id should be unique per user
303 $self->{remote_id} = $self->{remote_addr};
304
305 if (exists $self->{h}{"client-ip"}) {
306 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
307 } elsif (exists $self->{h}{"x-forwarded-for"}) {
308 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
309 }
250 310
251 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 311 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
252 312
313 eval {
253 $self->map_uri; 314 $self->map_uri;
254 $self->respond; 315 $self->respond;
316 };
317
318 $self->eoconn;
319
320 die if $@ && !ref $@;
321
322 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
323
324 $fh->timeout($::PER_TIMEOUT);
255 #} 325 }
256} 326}
257 327
258# uri => path mapping 328# uri => path mapping
259sub map_uri { 329sub map_uri {
260 my $self = shift; 330 my $self = shift;
261 my $host = $self->{h}{host} || "default"; 331 my $host = $self->{server_name};
262 my $uri = $self->{uri}; 332 my $uri = $self->{uri};
263 333
264 # some massaging, also makes it more secure 334 # some massaging, also makes it more secure
265 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 335 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
266 $uri =~ s%//+%/%g; 336 $uri =~ s%//+%/%g;
… …
276 $self->{path} = "$::DOCROOT/$host$uri"; 346 $self->{path} = "$::DOCROOT/$host$uri";
277 347
278 $self->access_check; 348 $self->access_check;
279} 349}
280 350
281sub server_address {
282 my $self = shift;
283 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
284 or $self->err(500, "unable to get socket name");
285 ((inet_ntoa $iaddr), $port);
286}
287
288sub server_host {
289 my $self = shift;
290 if (exists $self->{h}{host}) {
291 return $self->{h}{host};
292 } else {
293 return (($self->server_address)[0]);
294 }
295}
296
297sub server_hostport {
298 my $self = shift;
299 my ($host, $port);
300 if (exists $self->{h}{host}) {
301 ($host, $port) = ($self->{h}{host}, $self->{server_port});
302 } else {
303 ($host, $port) = $self->server_address;
304 }
305 $port = $port == 80 ? "" : ":$port";
306 $host.$port;
307}
308
309sub _cgi { 351sub _cgi {
310 my $self = shift; 352 my $self = shift;
311 my $path = shift; 353 my $path = shift;
312 my $fh; 354 my $fh;
313 355
314 # no two-way xxx supported 356 # no two-way xxx supported
315 if (0 == fork) { 357 if (0 == fork) {
316 open STDOUT, ">&".fileno($self->{fh}); 358 open STDOUT, ">&".fileno($self->{fh});
317 if (chdir $::DOCROOT) { 359 if (chdir $::DOCROOT) {
318 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 360 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
319 $ENV{HTTP_HOST} = $self->server_host; 361 $ENV{HTTP_HOST} = $self->{server_name};
320 $ENV{HTTP_PORT} = $self->{server_host}; 362 $ENV{HTTP_PORT} = $self->{server_port};
321 $ENV{SCRIPT_NAME} = $self->{name}; 363 $ENV{SCRIPT_NAME} = $self->{name};
322 exec $path; 364 exec $path;
323 } 365 }
324 Coro::State::_exit(0); 366 Coro::State::_exit(0);
325 } else { 367 } else {
368 die;
326 } 369 }
370}
371
372sub server_hostport {
373 $_[0]{server_port} == 80
374 ? $_[0]{server_name}
375 : "$_[0]{server_name}:$_[0]{server_port}";
327} 376}
328 377
329sub respond { 378sub respond {
330 my $self = shift; 379 my $self = shift;
331 my $path = $self->{path}; 380 my $path = $self->{path};
… …
341 390
342 if (-d _ && -r _) { 391 if (-d _ && -r _) {
343 # directory 392 # directory
344 if ($path !~ /\/$/) { 393 if ($path !~ /\/$/) {
345 # create a redirect to get the trailing "/" 394 # create a redirect to get the trailing "/"
346 my $host = $self->server_hostport; 395 # we don't try to avoid the :80
347 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 396 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
348 } else { 397 } else {
349 $ims < $self->{stat}[9] 398 $ims < $self->{stat}[9]
350 or $self->err(304, "not modified"); 399 or $self->err(304, "not modified");
351 400
352 if ($self->{method} eq "GET") {
353 if (-r "$path/index.html") { 401 if (-r "$path/index.html") {
354 $self->{path} .= "/index.html"; 402 $self->{path} .= "/index.html";
355 $self->handle_file; 403 $self->handle_file;
356 } else { 404 } else {
357 $self->handle_dir; 405 $self->handle_dir;
358 }
359 } 406 }
360 } 407 }
361 } elsif (-f _ && -r _) { 408 } elsif (-f _ && -r _) {
362 -x _ and $self->err(403, "forbidden"); 409 -x _ and $self->err(403, "forbidden");
363 $self->handle_file; 410 $self->handle_file;
… …
396 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 443 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
397 } else { 444 } else {
398 ($l, $h) = (0, $length - 1); 445 ($l, $h) = (0, $length - 1);
399 goto ignore; 446 goto ignore;
400 } 447 }
401 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 448 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
402 } 449 }
403 $hdr->{"Content-Range"} = "bytes */$length"; 450 $hdr->{"Content-Range"} = "bytes */$length";
451 $hdr->{"Content-Length"} = $length;
452 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
404 $self->err(416, "not satisfiable", $hdr); 453 $self->err(416, "not satisfiable", $hdr, "");
405 454
406satisfiable: 455satisfiable:
407 # check for segmented downloads 456 # check for segmented downloads
408 if ($l && $::NO_SEGMENTED) { 457 if ($l && $::NO_SEGMENTED) {
458 my $delay = 180;
409 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 459 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
460 if ($delay <= 0) {
461 $self->err_segmented_download;
462 } else {
410 Coro::Event::do_timer(after => 15); 463 Coro::Event::do_timer(after => 3); $delay -= 3;
411 464 }
412 $self->err(400, "segmented downloads are not allowed");
413 } 465 }
414 } 466 }
415 467
416 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 468 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
417 @code = (206, "partial content"); 469 @code = (206, "partial content");
… …
427 $hdr->{"Content-Length"} = $length; 479 $hdr->{"Content-Length"} = $length;
428 480
429 $self->response(@code, $hdr, ""); 481 $self->response(@code, $hdr, "");
430 482
431 if ($self->{method} eq "GET") { 483 if ($self->{method} eq "GET") {
484 $self->{time} = $::NOW;
485
486 my $transfer = $::transfers->guard;
487 $self->{fh}->writable or return;
488
489 push @::wait_time, $::NOW - $self->{time};
490 shift @::wait_time if @wait_time > 25;
491 $self->{time} = $::NOW;
492
432 my ($fh, $buf); 493 my ($fh, $buf, $r);
494 my $current = $Coro::current;
433 open $fh, "<", $self->{path} 495 open $fh, "<", $self->{path}
434 or die "$self->{path}: late open failure ($!)"; 496 or die "$self->{path}: late open failure ($!)";
435 497
436 if ($l) {
437 sysseek $fh, $l, 0
438 or die "$self->{path}: cannot seek to $l ($!)";
439 }
440
441 $h -= $l - 1; 498 $h -= $l - 1;
442 499
500 if (0) {
501 if ($l) {
502 sysseek $fh, $l, 0;
503 }
504 }
505
443 while ($h > 0) { 506 while ($h > 0) {
507 if (0) {
444 $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; 508 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
509 or last;
510 } else {
511 undef $buf;
512 $aio_requests->down;
513 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
514 $buf, 0, sub {
515 $r = $_[0];
516 $current->ready;
517 });
518 &Coro::schedule;
519 $aio_requests->up;
520 last unless $r;
521 }
445 my $w = $self->{fh}->syswrite($buf) 522 my $w = $self->{fh}->syswrite($buf)
446 or last; 523 or last;
447 $::written += $w; 524 $::written += $w;
448 $self->{written} += $w; 525 $self->{written} += $w;
526 $l += $r;
449 } 527 }
450 }
451 528
452 close $fh; 529 close $fh;
530 }
453} 531}
454 532
4551; 5331;

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