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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.1 by root, Thu Aug 9 02:57:54 2001 UTC vs.
Revision 1.35 by root, Thu Aug 30 12:35:28 2001 UTC

1#!/usr/bin/perl
2
3use Coro; 1use Coro;
4use Coro::Semaphore; 2use Coro::Semaphore;
5use Coro::Event; 3use Coro::Event;
6use Coro::Socket; 4use Coro::Socket;
7 5
6use HTTP::Date;
7
8no utf8; 8no utf8;
9use bytes; 9use bytes;
10 10
11# at least on my machine, this thingy serves files 11# at least on my machine, this thingy serves files
12# quite a bit faster than apache, ;) 12# quite a bit faster than apache, ;)
13# and quite a bit slower than thttpd :( 13# and quite a bit slower than thttpd :(
14 14
15my $port = new Coro::Socket
16 LocalAddr => $SERVER_HOST,
17 LocalPort => $SERVER_PORT,
18 ReuseAddr => 1,
19 Listen => 1,
20 or die "unable to start server";
21
22$SIG{PIPE} = 'IGNORE'; 15$SIG{PIPE} = 'IGNORE';
23 16
17our $accesslog;
18
19if ($ACCESS_LOG) {
20 use IO::Handle;
21 open $accesslog, ">>$ACCESS_LOG"
22 or die "$ACCESS_LOG: $!";
23 $accesslog->autoflush(1);
24}
25
24sub slog { 26sub slog {
25 my $level = shift; 27 my $level = shift;
26 my $format = shift; 28 my $format = shift;
27 printf "---: $format\n", @_; 29 printf "---: $format\n", @_;
28} 30}
29 31
30my $connections = new Coro::Semaphore $MAX_CONNECTS; 32our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
31 33
32my @fh; 34our $wait_factor = 0.95;
35
36our @transfers = (
37 [(new Coro::Semaphore $MAX_TRANSFERS_SMALL || 50), 1],
38 [(new Coro::Semaphore $MAX_TRANSFERS_LARGE || 50), 1],
39);
40
41my @newcons;
33my @pool; 42my @pool;
34 43
44# one "execution thread"
35sub handler { 45sub handler {
36 while () { 46 while () {
37 my $fh = pop @fh; 47 my $new = pop @newcons;
38 if ($fh) { 48 if ($new) {
39 eval { 49 eval {
40 conn->new($fh)->handle; 50 conn->new(@$new)->handle;
41 }; 51 };
42 close $fh;
43 slog 1, "$@" if $@ && !ref $@; 52 slog 1, "$@" if $@ && !ref $@;
44 $connections->up; 53 $connections->up;
45 } else { 54 } else {
46 last if @pool >= $MAX_POOL; 55 last if @pool >= $MAX_POOL;
47 push @pool, $Coro::current; 56 push @pool, $Coro::current;
48 schedule; 57 schedule;
49 } 58 }
50 } 59 }
51} 60}
52 61
62my $http_port = new Coro::Socket
63 LocalAddr => $SERVER_HOST,
64 LocalPort => $SERVER_PORT,
65 ReuseAddr => 1,
66 Listen => 50,
67 or die "unable to start server";
68
69push @listen_sockets, $http_port;
70
71our $NOW;
72our $HTTP_NOW;
73
74Event->timer(interval => 1, hard => 1, cb => sub {
75 $NOW = time;
76 $HTTP_NOW = time2str $NOW;
77})->now;
78
79# the "main thread"
53async { 80async {
54 slog 1, "accepting connections"; 81 slog 1, "accepting connections";
55 while () { 82 while () {
56 $connections->down; 83 $connections->down;
57 push @fh, $port->accept; 84 push @newcons, [$http_port->accept];
58 #slog 3, "accepted @$connections ".scalar(@pool); 85 #slog 3, "accepted @$connections ".scalar(@pool);
59 if (@pool) { 86 if (@pool) {
60 (pop @pool)->ready; 87 (pop @pool)->ready;
61 } else { 88 } else {
62 async \&handler; 89 async \&handler;
63 } 90 }
64 91
65 } 92 }
66}; 93};
67 94
68loop;
69print "ende\n";#d#
70
71package conn; 95package conn;
72 96
73use Socket; 97use Socket;
74use HTTP::Date; 98use HTTP::Date;
99use Convert::Scalar 'weaken';
100use Linux::AIO;
101
102Linux::AIO::min_parallel $::AIO_PARALLEL;
103
104my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
105
106Event->io(fd => Linux::AIO::poll_fileno,
107 poll => 'r', async => 1,
108 cb => \&Linux::AIO::poll_cb);
109
110our %conn; # $conn{ip}{self} => connobj
111our %uri; # $uri{ip}{uri}{self}
112our %blocked;
113our %mimetype;
114
115sub read_mimetypes {
116 local *M;
117 if (open M, "<mime_types") {
118 while (<M>) {
119 if (/^([^#]\S+)\t+(\S+)$/) {
120 $mimetype{lc $1} = $2;
121 }
122 }
123 } else {
124 print "cannot open mime_types\n";
125 }
126}
127
128read_mimetypes;
75 129
76sub new { 130sub new {
77 my $class = shift; 131 my $class = shift;
132 my $peername = shift;
78 my $fh = shift; 133 my $fh = shift;
134 my $self = bless { fh => $fh }, $class;
79 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 135 my (undef, $iaddr) = unpack_sockaddr_in $peername
80 or $self->err(500, "unable to get peername"); 136 or $self->err(500, "unable to decode peername");
137
81 $self->{remote_address} = inet_ntoa $iaddr; 138 $self->{remote_addr} = inet_ntoa $iaddr;
82 bless { fh => $fh }, $class; 139 $self->{time} = $::NOW;
140
141 # enter ourselves into various lists
142 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
143
144 $::conns++;
145
146 $self;
147}
148
149sub DESTROY {
150 my $self = shift;
151
152 $::conns--;
153
154 $self->eoconn;
155 delete $conn{$self->{remote_addr}}{$self*1};
156}
157
158# end of connection
159sub eoconn {
160 my $self = shift;
161 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
83} 162}
84 163
85sub slog { 164sub slog {
86 main::slog(@_); 165 my $self = shift;
166 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
87} 167}
88 168
89sub print_response { 169sub response {
90 my ($self, $code, $msg, $hdr, $content) = @_; 170 my ($self, $code, $msg, $hdr, $content) = @_;
91 my $res = "HTTP/1.0 $code $msg\015\012"; 171 my $res = "HTTP/1.1 $code $msg\015\012";
92 172
93 $hdr->{Date} = time2str time; # slow? nah. 173 $self->{h}{connection} ||= $hdr->{Connection};
174
175 $res .= "Date: $HTTP_NOW\015\012";
94 176
95 while (my ($h, $v) = each %$hdr) { 177 while (my ($h, $v) = each %$hdr) {
96 $res .= "$h: $v\015\012" 178 $res .= "$h: $v\015\012"
97 } 179 }
98 $res .= "\015\012$content" if defined $content; 180 $res .= "\015\012";
99 181
182 $res .= $content if defined $content and $self->{method} ne "HEAD";
183
184 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
185
186 print $accesslog $log if $accesslog;
187 print STDERR $log;
188
189 $self->{written} +=
100 print {$self->{fh}} $res; 190 print {$self->{fh}} $res;
101} 191}
102 192
103sub err { 193sub err {
104 my $self = shift; 194 my $self = shift;
105 my ($code, $msg, $hdr, $content) = @_; 195 my ($code, $msg, $hdr, $content) = @_;
106 196
107 unless (defined $content) { 197 unless (defined $content) {
108 $content = "$code $msg"; 198 $content = "$code $msg\n";
109 $hdr->{"Content-Type"} = "text/plain"; 199 $hdr->{"Content-Type"} = "text/plain";
110 $hdr->{"Content-Length"} = length $content; 200 $hdr->{"Content-Length"} = length $content;
111 } 201 }
202 $hdr->{"Connection"} = "close";
112 203
113 $self->slog($msg) if $code;
114
115 $self->print_response($code, $msg, $hdr, $content); 204 $self->response($code, $msg, $hdr, $content);
116 205
117 die bless {}, err::; 206 die bless {}, err::;
118} 207}
119 208
120sub handle { 209sub handle {
121 my $self = shift; 210 my $self = shift;
122 my $fh = $self->{fh}; 211 my $fh = $self->{fh};
123 212
213 my $host;
214
215 $fh->timeout($::REQ_TIMEOUT);
124 #while() { 216 while() {
217 $self->{reqs}++;
218
219 # read request and parse first line
220 my $req = $fh->readline("\015\012\015\012");
221
222 unless (defined $req) {
223 if (exists $self->{version}) {
224 last;
225 } else {
226 $self->err(408, "request timeout");
227 }
228 }
229
125 $self->{h} = {}; 230 $self->{h} = {};
126 231
127 # read request and parse first line
128 $fh->timeout($::REQ_TIMEOUT);
129 my $req = $fh->readline("\015\012\015\012");
130 $fh->timeout($::RES_TIMEOUT); 232 $fh->timeout($::RES_TIMEOUT);
233 my $ip = $self->{remote_addr};
131 234
132 defined $req or 235 if ($blocked{$ip}) {
133 $self->err(408, "request timeout"); 236 $self->err_blocked($blocked{$ip})
237 if $blocked{$ip} > $::NOW;
238
239 delete $blocked{$ip};
240 }
241
242 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
243 my $delay = 120;
244 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
245 if ($delay <= 0) {
246 $self->slog(2, "blocked ip $ip");
247 $self->err_blocked;
248 } else {
249 Coro::Event::do_timer(after => 3);
250 $delay -= 3;
251 }
252 }
253 }
134 254
135 $req =~ /^(?:\015\012)? 255 $req =~ /^(?:\015\012)?
136 (GET|HEAD) \040+ 256 (GET|HEAD) \040+
137 ([^\040]+) \040+ 257 ([^\040]+) \040+
138 HTTP\/([0-9]+\.[0-9]+) 258 HTTP\/([0-9]+\.[0-9]+)
139 \015\012/gx 259 \015\012/gx
140 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 260 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
141
142 $2 ne "1.0"
143 or $self->err(506, "http protocol version not supported");
144 261
145 $self->{method} = $1; 262 $self->{method} = $1;
146 $self->{uri} = $2; 263 $self->{uri} = $2;
264 $self->{version} = $3;
265
266 $3 =~ /^1\./
267 or $self->err(506, "http protocol version $3 not supported");
147 268
148 # parse headers 269 # parse headers
149 { 270 {
150 my (%hdr, $h, $v); 271 my (%hdr, $h, $v);
151 272
… …
162 283
163 $self->{h}{$h} = substr $v, 1 284 $self->{h}{$h} = substr $v, 1
164 while ($h, $v) = each %hdr; 285 while ($h, $v) = each %hdr;
165 } 286 }
166 287
288 # find out server name and port
289 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
290 $host = $1;
291 } else {
292 $host = $self->{h}{host};
293 }
294
295 if (defined $host) {
167 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 296 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
297 } else {
298 ($self->{server_port}, $host)
299 = unpack_sockaddr_in $self->{fh}->getsockname
300 or $self->err(500, "unable to get socket name");
301 $host = inet_ntoa $host;
302 }
168 303
304 $self->{server_name} = $host;
305
306 # remote id should be unique per user
307 $self->{remote_id} = $self->{remote_addr};
308
309 if (exists $self->{h}{"client-ip"}) {
310 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
311 } elsif (exists $self->{h}{"x-forwarded-for"}) {
312 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
313 }
314
315 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
316
317 eval {
169 $self->map_uri; 318 $self->map_uri;
170 $self->respond; 319 $self->respond;
320 };
321
322 $self->eoconn;
323
324 die if $@ && !ref $@;
325
326 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
327
328 $fh->timeout($::PER_TIMEOUT);
171 #} 329 }
172} 330}
173 331
174# uri => path mapping 332# uri => path mapping
175sub map_uri { 333sub map_uri {
176 my $self = shift; 334 my $self = shift;
177 my $host = $self->{h}{host} || "default"; 335 my $host = $self->{server_name};
178 my $uri = $self->{uri}; 336 my $uri = $self->{uri};
179 337
180 # some massaging, also makes it more secure 338 # some massaging, also makes it more secure
181 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 339 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
182 $uri =~ s%//+%/%g; 340 $uri =~ s%//+%/%g;
… …
188 346
189 $self->{name} = $uri; 347 $self->{name} = $uri;
190 348
191 # now do the path mapping 349 # now do the path mapping
192 $self->{path} = "$::DOCROOT/$host$uri"; 350 $self->{path} = "$::DOCROOT/$host$uri";
193}
194 351
195sub server_address { 352 $self->access_check;
196 my $self = shift;
197 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
198 or $self->err(500, "unable to get socket name");
199 ((inet_ntoa $iaddr), $port);
200}
201
202sub server_host {
203 my $self = shift;
204 if (exists $self->{h}{host}) {
205 return $self->{h}{host};
206 } else {
207 return (($self->server_address)[0]);
208 }
209}
210
211sub server_hostport {
212 my $self = shift;
213 my ($host, $port);
214 if (exists $self->{h}{host}) {
215 ($host, $port) = ($self->{h}{host}, $self->{server_port});
216 } else {
217 ($host, $port) = $self->server_address;
218 }
219 $port = $port == 80 ? "" : ":$port";
220 $host.$port;
221} 353}
222 354
223sub _cgi { 355sub _cgi {
224 my $self = shift; 356 my $self = shift;
225 my $path = shift; 357 my $path = shift;
… …
228 # no two-way xxx supported 360 # no two-way xxx supported
229 if (0 == fork) { 361 if (0 == fork) {
230 open STDOUT, ">&".fileno($self->{fh}); 362 open STDOUT, ">&".fileno($self->{fh});
231 if (chdir $::DOCROOT) { 363 if (chdir $::DOCROOT) {
232 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 364 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
233 $ENV{HTTP_HOST} = $self->server_host; 365 $ENV{HTTP_HOST} = $self->{server_name};
234 $ENV{HTTP_PORT} = $self->{server_host}; 366 $ENV{HTTP_PORT} = $self->{server_port};
235 $ENV{SCRIPT_NAME} = $self->{name}; 367 $ENV{SCRIPT_NAME} = $self->{name};
236 exec $::INDEXPROG; 368 exec $path;
237 } 369 }
238 Coro::State::_exit(0); 370 Coro::State::_exit(0);
239 } else { 371 } else {
372 die;
240 } 373 }
374}
375
376sub server_hostport {
377 $_[0]{server_port} == 80
378 ? $_[0]{server_name}
379 : "$_[0]{server_name}:$_[0]{server_port}";
241} 380}
242 381
243sub respond { 382sub respond {
244 my $self = shift; 383 my $self = shift;
245 my $path = $self->{path}; 384 my $path = $self->{path};
246 385
247 stat $path 386 stat $path
248 or $self->err(404, "not found"); 387 or $self->err(404, "not found");
388
389 $self->{stat} = [stat _];
249 390
250 # idiotic netscape sends idiotic headers AGAIN 391 # idiotic netscape sends idiotic headers AGAIN
251 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 392 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
252 ? str2time $1 : 0; 393 ? str2time $1 : 0;
253 394
254 if (-d _ && -r _) { 395 if (-d _ && -r _) {
255 # directory 396 # directory
256 if ($path !~ /\/$/) { 397 if ($path !~ /\/$/) {
257 # create a redirect to get the trailing "/" 398 # create a redirect to get the trailing "/"
258 my $host = $self->server_hostport; 399 # we don't try to avoid the :80
259 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 400 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
260 } else { 401 } else {
261 $ims < (stat _)[9] 402 $ims < $self->{stat}[9]
262 or $self->err(304, "not modified"); 403 or $self->err(304, "not modified");
263 404
264 if ($self->{method} eq "GET") {
265 if (-r "$path/index.html") { 405 if (-r "$path/index.html") {
266 $self->{path} .= "/index.html"; 406 $self->{path} .= "/index.html";
267 $self->handle_file; 407 $self->handle_file;
268 } else { 408 } else {
269 $self->handle_dir; 409 $self->handle_dir;
270 }
271 } 410 }
272 } 411 }
273 } elsif (-f _ && -r _) { 412 } elsif (-f _ && -r _) {
274 -x _ and $self->err(403, "forbidden"); 413 -x _ and $self->err(403, "forbidden");
275 $self->handle_file; 414 $self->handle_file;
… …
278 } 417 }
279} 418}
280 419
281sub handle_dir { 420sub handle_dir {
282 my $self = shift; 421 my $self = shift;
283 $self->_cgi($::INDEXPROG); 422 my $idx = $self->diridx;
423
424 $self->response(200, "ok",
425 {
426 "Content-Type" => "text/html",
427 "Content-Length" => length $idx,
428 },
429 $idx);
284} 430}
285 431
286sub handle_file { 432sub handle_file {
287 my $self = shift; 433 my $self = shift;
288 my $length = -s _; 434 my $length = $self->{stat}[7];
435 my $queue = $::transfers[$length >= $::TRANSFER_SMALL];
289 my $hdr = { 436 my $hdr = {
290 "Last-Modified" => time2str ((stat _)[9]), 437 "Last-Modified" => time2str ((stat _)[9]),
291 }; 438 };
292 439
293 my @code = (200, "ok"); 440 my @code = (200, "ok");
… …
301 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 448 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
302 } else { 449 } else {
303 ($l, $h) = (0, $length - 1); 450 ($l, $h) = (0, $length - 1);
304 goto ignore; 451 goto ignore;
305 } 452 }
306 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 453 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
307 } 454 }
308 $hdr->{"Content-Range"} = "bytes */$length"; 455 $hdr->{"Content-Range"} = "bytes */$length";
456 $hdr->{"Content-Length"} = $length;
309 $self->err(416, "not satisfiable", $hdr); 457 $self->err(416, "not satisfiable", $hdr, "");
310 458
311satisfiable: 459satisfiable:
460 # check for segmented downloads
461 if ($l && $::NO_SEGMENTED) {
462 my $delay = 180;
463 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
464 if ($delay <= 0) {
465 $self->err_segmented_download;
466 } else {
467 Coro::Event::do_timer(after => 3); $delay -= 3;
468 }
469 }
470 }
471
312 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 472 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
313 @code = (206, "partial content"); 473 @code = (206, "partial content");
314 $length = $h - $l + 1; 474 $length = $h - $l + 1;
315 475
316ignore: 476ignore:
317 } else { 477 } else {
318 ($l, $h) = (0, $length - 1); 478 ($l, $h) = (0, $length - 1);
319 } 479 }
320 480
321 if ($self->{path} =~ /\.html$/) { 481 $self->{path} =~ /\.([^.]+)$/;
322 $hdr->{"Content-Type"} = "text/html";
323 } else {
324 $hdr->{"Content-Type"} = "application/octet-stream"; 482 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
325 }
326
327 $hdr->{"Content-Length"} = $length; 483 $hdr->{"Content-Length"} = $length;
328 484
329 $self->print_response(@code, $hdr, ""); 485 $self->response(@code, $hdr, "");
330 486
331 if ($self->{method} eq "GET") { 487 if ($self->{method} eq "GET") {
488 $self->{time} = $::NOW;
489
490 my $fudge = $queue->[0]->waiters;
491 $fudge = $fudge ? ($fudge+1)/$fudge : 1;
492
493 $queue->[1] *= $fudge;
494 my $transfer = $queue->[0]->guard;
495
496 if ($fudge != 1) {
497 $queue->[1] /= $fudge;
498 $queue->[1] = $queue->[1] * $::wait_factor
499 + ($::NOW - $self->{time}) * (1 - $::wait_factor);
500 }
501 $self->{time} = $::NOW;
502
503 $self->{fh}->writable or return;
504
332 my ($fh, $buf); 505 my ($fh, $buf, $r);
506 my $current = $Coro::current;
333 open $fh, "<", $self->{path} 507 open $fh, "<", $self->{path}
334 or die "$self->{path}: late open failure ($!)"; 508 or die "$self->{path}: late open failure ($!)";
335 509
336 if ($l) {
337 sysseek $fh, $l, 0
338 or die "$self->{path}: cannot seek to $l ($!)";
339 }
340
341 $h -= $l - 1; 510 $h -= $l - 1;
342 511
512 if (0) {
513 if ($l) {
514 sysseek $fh, $l, 0;
515 }
516 }
517
343 while ($h > 0) { 518 while ($h > 0) {
344 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 519 if (0) {
345 print {$self->{fh}} $buf 520 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
521 or last;
522 } else {
523 undef $buf;
524 $aio_requests->down;
525 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
526 $buf, 0, sub {
527 $r = $_[0];
528 $current->ready;
529 });
530 &Coro::schedule;
531 $aio_requests->up;
532 last unless $r;
533 }
534 my $w = $self->{fh}->syswrite($buf)
346 or last; 535 or last;
536 $::written += $w;
537 $self->{written} += $w;
538 $l += $r;
347 } 539 }
348 }
349 540
350 close $fh; 541 close $fh;
542 }
351} 543}
544
5451;

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