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/cvs/cvsroot/Coro/myhttpd/httpd.pl
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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.21 by root, Fri Aug 17 03:33:00 2001 UTC vs.
Revision 1.31 by root, Mon Aug 27 05:05:26 2001 UTC

… …
9# at least on my machine, this thingy serves files 9# at least on my machine, this thingy serves files
10# quite a bit faster than apache, ;) 10# quite a bit faster than apache, ;)
11# and quite a bit slower than thttpd :( 11# and quite a bit slower than thttpd :(
12 12
13$SIG{PIPE} = 'IGNORE'; 13$SIG{PIPE} = 'IGNORE';
14 14
15our $accesslog;
16
17if ($ACCESS_LOG) {
18 use IO::Handle;
19 open $accesslog, ">>$ACCESS_LOG"
20 or die "$ACCESS_LOG: $!";
21 $accesslog->autoflush(1);
22}
23
15sub slog { 24sub slog {
16 my $level = shift; 25 my $level = shift;
17 my $format = shift; 26 my $format = shift;
18 printf "---: $format\n", @_; 27 printf "---: $format\n", @_;
19} 28}
… …
74use Convert::Scalar 'weaken'; 83use Convert::Scalar 'weaken';
75use Linux::AIO; 84use Linux::AIO;
76 85
77Linux::AIO::min_parallel $::AIO_PARALLEL; 86Linux::AIO::min_parallel $::AIO_PARALLEL;
78 87
88my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
89
79Event->io(fd => Linux::AIO::poll_fileno, 90Event->io(fd => Linux::AIO::poll_fileno,
80 poll => 'r', async => 1, 91 poll => 'r', async => 1,
81 cb => \&Linux::AIO::poll_cb); 92 cb => \&Linux::AIO::poll_cb);
82my $scheduler = Event->idle(
83 max => 0, min => 0, prio => 6, parked => 1,
84 cb => \&Coro::schedule);
85 93
86our %conn; # $conn{ip}{fh} => connobj 94our %conn; # $conn{ip}{self} => connobj
95our %uri; # $uri{ip}{uri}{self}
87our %blocked; 96our %blocked;
88our %mimetype; 97our %mimetype;
89 98
90sub read_mimetypes { 99sub read_mimetypes {
91 local *M; 100 local *M;
… …
130 delete $conn{$self->{remote_addr}}{$self*1}; 139 delete $conn{$self->{remote_addr}}{$self*1};
131} 140}
132 141
133# end of connection 142# end of connection
134sub eoconn { 143sub eoconn {
144 my $self = shift;
135 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 145 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
136} 146}
137 147
138sub slog { 148sub slog {
139 my $self = shift; 149 my $self = shift;
140 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 150 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
141} 151}
142 152
143sub response { 153sub response {
144 my ($self, $code, $msg, $hdr, $content) = @_; 154 my ($self, $code, $msg, $hdr, $content) = @_;
145 my $res = "HTTP/1.1 $code $msg\015\012"; 155 my $res = "HTTP/1.1 $code $msg\015\012";
146 156
147 #$res .= "Connection: close\015\012"; 157 $self->{h}{connection} ||= $hdr->{Connection};
158
148 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 159 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :(
149 160
150 while (my ($h, $v) = each %$hdr) { 161 while (my ($h, $v) = each %$hdr) {
151 $res .= "$h: $v\015\012" 162 $res .= "$h: $v\015\012"
152 } 163 }
153 $res .= "\015\012"; 164 $res .= "\015\012";
154 165
155 $res .= $content if defined $content and $self->{method} ne "HEAD"; 166 $res .= $content if defined $content and $self->{method} ne "HEAD";
156 167
157 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 168 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
169
170 print $accesslog $log if $accesslog;
171 print STDERR $log;
158 172
159 $self->{written} += 173 $self->{written} +=
160 print {$self->{fh}} $res; 174 print {$self->{fh}} $res;
161} 175}
162 176
… …
174 $self->response($code, $msg, $hdr, $content); 188 $self->response($code, $msg, $hdr, $content);
175 189
176 die bless {}, err::; 190 die bless {}, err::;
177} 191}
178 192
179sub err_blocked {
180 my $self = shift;
181 my $ip = $self->{remote_addr};
182 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
183
184 Coro::Event::do_timer(after => 20*rand);
185
186 $self->err(401, "too many connections",
187 {
188 "Content-Type" => "text/html",
189 "Retry-After" => $::BLOCKTIME,
190 "Warning" => "Please do NOT retry, you have been blocked",
191 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
192 },
193 <<EOF);
194<html><p>
195You have been blocked because you opened too many connections. You
196may retry at</p>
197
198 <p><blockquote>$time.</blockquote></p>
199
200<p>Until then, each new access will renew the block. You might want to have a
201look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
202</html>
203EOF
204}
205
206sub handle { 193sub handle {
207 my $self = shift; 194 my $self = shift;
208 my $fh = $self->{fh}; 195 my $fh = $self->{fh};
196
197 my $host;
209 198
210 $fh->timeout($::REQ_TIMEOUT); 199 $fh->timeout($::REQ_TIMEOUT);
211 while() { 200 while() {
212 $self->{reqs}++; 201 $self->{reqs}++;
213 202
… …
233 222
234 delete $blocked{$ip}; 223 delete $blocked{$ip};
235 } 224 }
236 225
237 if (%{$conn{$ip}} > $::MAX_CONN_IP) { 226 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
227 my $delay = 120;
228 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
229 if ($delay <= 0) {
238 $self->slog(2, "blocked ip $ip"); 230 $self->slog(2, "blocked ip $ip");
239 $self->err_blocked; 231 $self->err_blocked;
232 } else {
233 Coro::Event::do_timer(after => 3);
234 $delay -= 3;
235 }
236 }
240 } 237 }
241 238
242 $req =~ /^(?:\015\012)? 239 $req =~ /^(?:\015\012)?
243 (GET|HEAD) \040+ 240 (GET|HEAD) \040+
244 ([^\040]+) \040+ 241 ([^\040]+) \040+
… …
270 267
271 $self->{h}{$h} = substr $v, 1 268 $self->{h}{$h} = substr $v, 1
272 while ($h, $v) = each %hdr; 269 while ($h, $v) = each %hdr;
273 } 270 }
274 271
272 # find out server name and port
273 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
274 $host = $1;
275 } else {
276 $host = $self->{h}{host};
277 }
278
279 if (defined $host) {
275 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 280 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
281 } else {
282 ($self->{server_port}, $host)
283 = unpack_sockaddr_in $self->{fh}->getsockname
284 or $self->err(500, "unable to get socket name");
285 $host = inet_ntoa $host;
286 }
287
288 $self->{server_name} = $host;
289
290 # remote id should be unique per user
291 $self->{remote_id} = $self->{remote_addr};
292
293 if (exists $self->{h}{"client-ip"}) {
294 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
295 } elsif (exists $self->{h}{"x-forwarded-for"}) {
296 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
297 }
276 298
277 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 299 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
278 300
301 eval {
279 $self->map_uri; 302 $self->map_uri;
280 $self->respond; 303 $self->respond;
304 };
281 305
282 $self->eoconn; 306 $self->eoconn;
283 307
308 die if $@ && !ref $@;
309
284 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 310 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
285 311
286 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]");
287 $fh->timeout($::PER_TIMEOUT); 312 $fh->timeout($::PER_TIMEOUT);
288 } 313 }
289} 314}
290 315
291# uri => path mapping 316# uri => path mapping
292sub map_uri { 317sub map_uri {
293 my $self = shift; 318 my $self = shift;
294 my $host = $self->{h}{host} || "default"; 319 my $host = $self->{server_name};
295 my $uri = $self->{uri}; 320 my $uri = $self->{uri};
296 321
297 # some massaging, also makes it more secure 322 # some massaging, also makes it more secure
298 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 323 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
299 $uri =~ s%//+%/%g; 324 $uri =~ s%//+%/%g;
… …
309 $self->{path} = "$::DOCROOT/$host$uri"; 334 $self->{path} = "$::DOCROOT/$host$uri";
310 335
311 $self->access_check; 336 $self->access_check;
312} 337}
313 338
314sub server_address {
315 my $self = shift;
316 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
317 or $self->err(500, "unable to get socket name");
318 ((inet_ntoa $iaddr), $port);
319}
320
321sub server_host {
322 my $self = shift;
323 if (exists $self->{h}{host}) {
324 return $self->{h}{host};
325 } else {
326 return (($self->server_address)[0]);
327 }
328}
329
330sub server_hostport {
331 my $self = shift;
332 my ($host, $port);
333 if (exists $self->{h}{host}) {
334 ($host, $port) = ($self->{h}{host}, $self->{server_port});
335 } else {
336 ($host, $port) = $self->server_address;
337 }
338 $port = $port == 80 ? "" : ":$port";
339 $host.$port;
340}
341
342sub _cgi { 339sub _cgi {
343 my $self = shift; 340 my $self = shift;
344 my $path = shift; 341 my $path = shift;
345 my $fh; 342 my $fh;
346 343
347 # no two-way xxx supported 344 # no two-way xxx supported
348 if (0 == fork) { 345 if (0 == fork) {
349 open STDOUT, ">&".fileno($self->{fh}); 346 open STDOUT, ">&".fileno($self->{fh});
350 if (chdir $::DOCROOT) { 347 if (chdir $::DOCROOT) {
351 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 348 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
352 $ENV{HTTP_HOST} = $self->server_host; 349 $ENV{HTTP_HOST} = $self->{server_name};
353 $ENV{HTTP_PORT} = $self->{server_host}; 350 $ENV{HTTP_PORT} = $self->{server_port};
354 $ENV{SCRIPT_NAME} = $self->{name}; 351 $ENV{SCRIPT_NAME} = $self->{name};
355 exec $path; 352 exec $path;
356 } 353 }
357 Coro::State::_exit(0); 354 Coro::State::_exit(0);
358 } else { 355 } else {
356 die;
359 } 357 }
358}
359
360sub server_hostport {
361 $_[0]{server_port} == 80
362 ? $_[0]{server_name}
363 : "$_[0]{server_name}:$_[0]{server_port}";
360} 364}
361 365
362sub respond { 366sub respond {
363 my $self = shift; 367 my $self = shift;
364 my $path = $self->{path}; 368 my $path = $self->{path};
… …
374 378
375 if (-d _ && -r _) { 379 if (-d _ && -r _) {
376 # directory 380 # directory
377 if ($path !~ /\/$/) { 381 if ($path !~ /\/$/) {
378 # create a redirect to get the trailing "/" 382 # create a redirect to get the trailing "/"
379 my $host = $self->server_hostport; 383 # we don't try to avoid the :80
380 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 384 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
381 } else { 385 } else {
382 $ims < $self->{stat}[9] 386 $ims < $self->{stat}[9]
383 or $self->err(304, "not modified"); 387 or $self->err(304, "not modified");
384 388
385 if ($self->{method} eq "GET") {
386 if (-r "$path/index.html") { 389 if (-r "$path/index.html") {
387 $self->{path} .= "/index.html"; 390 $self->{path} .= "/index.html";
388 $self->handle_file; 391 $self->handle_file;
389 } else { 392 } else {
390 $self->handle_dir; 393 $self->handle_dir;
391 }
392 } 394 }
393 } 395 }
394 } elsif (-f _ && -r _) { 396 } elsif (-f _ && -r _) {
395 -x _ and $self->err(403, "forbidden"); 397 -x _ and $self->err(403, "forbidden");
396 $self->handle_file; 398 $self->handle_file;
… …
429 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 431 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
430 } else { 432 } else {
431 ($l, $h) = (0, $length - 1); 433 ($l, $h) = (0, $length - 1);
432 goto ignore; 434 goto ignore;
433 } 435 }
434 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 436 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
435 } 437 }
436 $hdr->{"Content-Range"} = "bytes */$length"; 438 $hdr->{"Content-Range"} = "bytes */$length";
439 $hdr->{"Content-Length"} = $length;
437 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); 440 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
438 $self->err(416, "not satisfiable", $hdr); 441 $self->err(416, "not satisfiable", $hdr, "");
439 442
440satisfiable: 443satisfiable:
441 # check for segmented downloads 444 # check for segmented downloads
442 if ($l && $::NO_SEGMENTED) { 445 if ($l && $::NO_SEGMENTED) {
446 my $delay = 180;
443 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { 447 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
448 if ($delay <= 0) {
449 $self->err_segmented_download;
450 } else {
444 Coro::Event::do_timer(after => 15); 451 Coro::Event::do_timer(after => 3); $delay -= 3;
445 452 }
446 $self->err(400, "segmented downloads are not allowed");
447 } 453 }
448 } 454 }
449 455
450 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 456 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
451 @code = (206, "partial content"); 457 @code = (206, "partial content");
… …
479 while ($h > 0) { 485 while ($h > 0) {
480 if (0) { 486 if (0) {
481 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h 487 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
482 or last; 488 or last;
483 } else { 489 } else {
490 undef $buf;
491 $aio_requests->down;
484 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), 492 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
485 $buf, 0, sub { 493 $buf, 0, sub {
486 $r = $_[0]; 494 $r = $_[0];
487 $current->ready; 495 $current->ready;
488 $scheduler->now;
489 }); 496 });
490 &Coro::schedule; 497 &Coro::schedule;
498 $aio_requests->up;
491 last unless $r; 499 last unless $r;
492 } 500 }
493 my $w = $self->{fh}->syswrite($buf) 501 my $w = $self->{fh}->syswrite($buf)
494 or last; 502 or last;
495 $::written += $w; 503 $::written += $w;

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