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/cvs/cvsroot/Coro/myhttpd/httpd.pl
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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.25 by root, Sun Aug 19 22:14:26 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);
82 93
83our %conn; # $conn{ip}{fh} => connobj 94our %conn; # $conn{ip}{self} => connobj
95our %uri; # $uri{ip}{uri}{self}
84our %blocked; 96our %blocked;
85our %mimetype; 97our %mimetype;
86 98
87sub read_mimetypes { 99sub read_mimetypes {
88 local *M; 100 local *M;
… …
127 delete $conn{$self->{remote_addr}}{$self*1}; 139 delete $conn{$self->{remote_addr}}{$self*1};
128} 140}
129 141
130# end of connection 142# end of connection
131sub eoconn { 143sub eoconn {
144 my $self = shift;
132 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; 145 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
133} 146}
134 147
135sub slog { 148sub slog {
136 my $self = shift; 149 my $self = shift;
137 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 150 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
138} 151}
139 152
140sub response { 153sub response {
141 my ($self, $code, $msg, $hdr, $content) = @_; 154 my ($self, $code, $msg, $hdr, $content) = @_;
142 my $res = "HTTP/1.1 $code $msg\015\012"; 155 my $res = "HTTP/1.1 $code $msg\015\012";
143 156
144 #$res .= "Connection: close\015\012"; 157 $self->{h}{connection} ||= $hdr->{Connection};
158
145 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 159 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :(
146 160
147 while (my ($h, $v) = each %$hdr) { 161 while (my ($h, $v) = each %$hdr) {
148 $res .= "$h: $v\015\012" 162 $res .= "$h: $v\015\012"
149 } 163 }
150 $res .= "\015\012"; 164 $res .= "\015\012";
151 165
152 $res .= $content if defined $content and $self->{method} ne "HEAD"; 166 $res .= $content if defined $content and $self->{method} ne "HEAD";
153 167
154 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; 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;
155 172
156 $self->{written} += 173 $self->{written} +=
157 print {$self->{fh}} $res; 174 print {$self->{fh}} $res;
158} 175}
159 176
… …
171 $self->response($code, $msg, $hdr, $content); 188 $self->response($code, $msg, $hdr, $content);
172 189
173 die bless {}, err::; 190 die bless {}, err::;
174} 191}
175 192
176sub err_blocked {
177 my $self = shift;
178 my $ip = $self->{remote_addr};
179 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
180
181 Coro::Event::do_timer(after => 20*rand);
182
183 $self->err(401, "too many connections",
184 {
185 "Content-Type" => "text/html",
186 "Retry-After" => $::BLOCKTIME,
187 "Warning" => "Please do NOT retry, you have been blocked",
188 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
189 },
190 <<EOF);
191<html><p>
192You have been blocked because you opened too many connections. You
193may retry at</p>
194
195 <p><blockquote>$time.</blockquote></p>
196
197<p>Until then, each new access will renew the block. You might want to have a
198look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
199</html>
200EOF
201}
202
203sub handle { 193sub handle {
204 my $self = shift; 194 my $self = shift;
205 my $fh = $self->{fh}; 195 my $fh = $self->{fh};
196
197 my $host;
206 198
207 $fh->timeout($::REQ_TIMEOUT); 199 $fh->timeout($::REQ_TIMEOUT);
208 while() { 200 while() {
209 $self->{reqs}++; 201 $self->{reqs}++;
210 202
… …
230 222
231 delete $blocked{$ip}; 223 delete $blocked{$ip};
232 } 224 }
233 225
234 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) {
235 $self->slog(2, "blocked ip $ip"); 230 $self->slog(2, "blocked ip $ip");
236 $self->err_blocked; 231 $self->err_blocked;
232 } else {
233 Coro::Event::do_timer(after => 3);
234 $delay -= 3;
235 }
236 }
237 } 237 }
238 238
239 $req =~ /^(?:\015\012)? 239 $req =~ /^(?:\015\012)?
240 (GET|HEAD) \040+ 240 (GET|HEAD) \040+
241 ([^\040]+) \040+ 241 ([^\040]+) \040+
… …
267 267
268 $self->{h}{$h} = substr $v, 1 268 $self->{h}{$h} = substr $v, 1
269 while ($h, $v) = each %hdr; 269 while ($h, $v) = each %hdr;
270 } 270 }
271 271
272 # find out server name and port
273 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
274 $host = $1;
275 } else {
276 $host = $self->{h}{host};
277 }
278
279 if (defined $host) {
272 $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 }
273 298
274 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); 299 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
275 300
276 eval { 301 eval {
277 $self->map_uri; 302 $self->map_uri;
278 $self->respond; 303 $self->respond;
279 }; 304 };
280 305
306 $self->eoconn;
307
281 die if $@ && !ref $@; 308 die if $@ && !ref $@;
282 309
283 $self->eoconn;
284
285 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; 310 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
286 311
287 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]");
288 $fh->timeout($::PER_TIMEOUT); 312 $fh->timeout($::PER_TIMEOUT);
289 } 313 }
290} 314}
291 315
292# uri => path mapping 316# uri => path mapping
293sub map_uri { 317sub map_uri {
294 my $self = shift; 318 my $self = shift;
295 my $host = $self->{h}{host} || "default"; 319 my $host = $self->{server_name};
296 my $uri = $self->{uri}; 320 my $uri = $self->{uri};
297 321
298 # some massaging, also makes it more secure 322 # some massaging, also makes it more secure
299 $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;
300 $uri =~ s%//+%/%g; 324 $uri =~ s%//+%/%g;
… …
310 $self->{path} = "$::DOCROOT/$host$uri"; 334 $self->{path} = "$::DOCROOT/$host$uri";
311 335
312 $self->access_check; 336 $self->access_check;
313} 337}
314 338
315sub server_address {
316 my $self = shift;
317 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
318 or $self->err(500, "unable to get socket name");
319 ((inet_ntoa $iaddr), $port);
320}
321
322sub server_host {
323 my $self = shift;
324 if (exists $self->{h}{host}) {
325 return $self->{h}{host};
326 } else {
327 return (($self->server_address)[0]);
328 }
329}
330
331sub server_hostport {
332 my $self = shift;
333 my ($host, $port);
334 if (exists $self->{h}{host}) {
335 ($host, $port) = ($self->{h}{host}, $self->{server_port});
336 } else {
337 ($host, $port) = $self->server_address;
338 }
339 $port = $port == 80 ? "" : ":$port";
340 $host.$port;
341}
342
343sub _cgi { 339sub _cgi {
344 my $self = shift; 340 my $self = shift;
345 my $path = shift; 341 my $path = shift;
346 my $fh; 342 my $fh;
347 343
348 # no two-way xxx supported 344 # no two-way xxx supported
349 if (0 == fork) { 345 if (0 == fork) {
350 open STDOUT, ">&".fileno($self->{fh}); 346 open STDOUT, ">&".fileno($self->{fh});
351 if (chdir $::DOCROOT) { 347 if (chdir $::DOCROOT) {
352 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 348 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
353 $ENV{HTTP_HOST} = $self->server_host; 349 $ENV{HTTP_HOST} = $self->{server_name};
354 $ENV{HTTP_PORT} = $self->{server_host}; 350 $ENV{HTTP_PORT} = $self->{server_port};
355 $ENV{SCRIPT_NAME} = $self->{name}; 351 $ENV{SCRIPT_NAME} = $self->{name};
356 exec $path; 352 exec $path;
357 } 353 }
358 Coro::State::_exit(0); 354 Coro::State::_exit(0);
359 } else { 355 } else {
356 die;
360 } 357 }
358}
359
360sub server_hostport {
361 $_[0]{server_port} == 80
362 ? $_[0]{server_name}
363 : "$_[0]{server_name}:$_[0]{server_port}";
361} 364}
362 365
363sub respond { 366sub respond {
364 my $self = shift; 367 my $self = shift;
365 my $path = $self->{path}; 368 my $path = $self->{path};
… …
375 378
376 if (-d _ && -r _) { 379 if (-d _ && -r _) {
377 # directory 380 # directory
378 if ($path !~ /\/$/) { 381 if ($path !~ /\/$/) {
379 # create a redirect to get the trailing "/" 382 # create a redirect to get the trailing "/"
380 my $host = $self->server_hostport; 383 # we don't try to avoid the :80
381 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 384 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
382 } else { 385 } else {
383 $ims < $self->{stat}[9] 386 $ims < $self->{stat}[9]
384 or $self->err(304, "not modified"); 387 or $self->err(304, "not modified");
385 388
386 if (-r "$path/index.html") { 389 if (-r "$path/index.html") {
… …
428 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 431 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
429 } else { 432 } else {
430 ($l, $h) = (0, $length - 1); 433 ($l, $h) = (0, $length - 1);
431 goto ignore; 434 goto ignore;
432 } 435 }
433 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 436 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
434 } 437 }
435 $hdr->{"Content-Range"} = "bytes */$length"; 438 $hdr->{"Content-Range"} = "bytes */$length";
436 $hdr->{"Content-Length"} = $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 }); 496 });
489 &Coro::schedule; 497 &Coro::schedule;
498 $aio_requests->up;
490 last unless $r; 499 last unless $r;
491 } 500 }
492 my $w = $self->{fh}->syswrite($buf) 501 my $w = $self->{fh}->syswrite($buf)
493 or last; 502 or last;
494 $::written += $w; 503 $::written += $w;

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