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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 1.33 by root, Wed Aug 29 01:40:44 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
11our @wait_time = (); # used to calculcate avg. waiting time
12our $wait_time_length = 25;
10 13
11# at least on my machine, this thingy serves files 14# at least on my machine, this thingy serves files
12# quite a bit faster than apache, ;) 15# quite a bit faster than apache, ;)
13# and quite a bit slower than thttpd :( 16# and quite a bit slower than thttpd :(
14 17
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'; 18$SIG{PIPE} = 'IGNORE';
23 19
20our $accesslog;
21
22if ($ACCESS_LOG) {
23 use IO::Handle;
24 open $accesslog, ">>$ACCESS_LOG"
25 or die "$ACCESS_LOG: $!";
26 $accesslog->autoflush(1);
27}
28
24sub slog { 29sub slog {
25 my $level = shift; 30 my $level = shift;
26 my $format = shift; 31 my $format = shift;
27 printf "---: $format\n", @_; 32 printf "---: $format\n", @_;
28} 33}
29 34
30my $connections = new Coro::Semaphore $MAX_CONNECTS; 35our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
36our $transfers = new Coro::Semaphore $MAX_TRANSFER || 50;
31 37
32my @fh; 38my @newcons;
33my @pool; 39my @pool;
34 40
41# one "execution thread"
35sub handler { 42sub handler {
36 while () { 43 while () {
37 my $fh = pop @fh; 44 my $new = pop @newcons;
38 if ($fh) { 45 if ($new) {
39 eval { 46 eval {
40 conn->new($fh)->handle; 47 conn->new(@$new)->handle;
41 }; 48 };
42 close $fh;
43 slog 1, "$@" if $@ && !ref $@; 49 slog 1, "$@" if $@ && !ref $@;
44 $connections->up; 50 $connections->up;
45 } else { 51 } else {
46 last if @pool >= $MAX_POOL; 52 last if @pool >= $MAX_POOL;
47 push @pool, $Coro::current; 53 push @pool, $Coro::current;
48 schedule; 54 schedule;
49 } 55 }
50 } 56 }
51} 57}
52 58
59my $http_port = new Coro::Socket
60 LocalAddr => $SERVER_HOST,
61 LocalPort => $SERVER_PORT,
62 ReuseAddr => 1,
63 Listen => 50,
64 or die "unable to start server";
65
66push @listen_sockets, $http_port;
67
68our $NOW;
69our $HTTP_NOW;
70
71Event->timer(interval => 1, hard => 1, cb => sub {
72 $NOW = time;
73 $HTTP_NOW = time2str $NOW;
74});
75
76# the "main thread"
53async { 77async {
54 slog 1, "accepting connections"; 78 slog 1, "accepting connections";
55 while () { 79 while () {
56 $connections->down; 80 $connections->down;
57 push @fh, $port->accept; 81 push @newcons, [$http_port->accept];
58 #slog 3, "accepted @$connections ".scalar(@pool); 82 #slog 3, "accepted @$connections ".scalar(@pool);
59 if (@pool) { 83 if (@pool) {
60 (pop @pool)->ready; 84 (pop @pool)->ready;
61 } else { 85 } else {
62 async \&handler; 86 async \&handler;
63 } 87 }
64 88
65 } 89 }
66}; 90};
67 91
68loop;
69print "ende\n";#d#
70
71package conn; 92package conn;
72 93
73use Socket; 94use Socket;
74use HTTP::Date; 95use HTTP::Date;
96use Convert::Scalar 'weaken';
97use Linux::AIO;
98
99Linux::AIO::min_parallel $::AIO_PARALLEL;
100
101my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
102
103Event->io(fd => Linux::AIO::poll_fileno,
104 poll => 'r', async => 1,
105 cb => \&Linux::AIO::poll_cb);
106
107our %conn; # $conn{ip}{self} => connobj
108our %uri; # $uri{ip}{uri}{self}
109our %blocked;
110our %mimetype;
111
112sub read_mimetypes {
113 local *M;
114 if (open M, "<mime_types") {
115 while (<M>) {
116 if (/^([^#]\S+)\t+(\S+)$/) {
117 $mimetype{lc $1} = $2;
118 }
119 }
120 } else {
121 print "cannot open mime_types\n";
122 }
123}
124
125read_mimetypes;
75 126
76sub new { 127sub new {
77 my $class = shift; 128 my $class = shift;
129 my $peername = shift;
78 my $fh = shift; 130 my $fh = shift;
131 my $self = bless { fh => $fh }, $class;
79 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 132 my (undef, $iaddr) = unpack_sockaddr_in $peername
80 or $self->err(500, "unable to get peername"); 133 or $self->err(500, "unable to decode peername");
134
81 $self->{remote_address} = inet_ntoa $iaddr; 135 $self->{remote_addr} = inet_ntoa $iaddr;
82 bless { fh => $fh }, $class; 136 $self->{time} = $::NOW;
137
138 # enter ourselves into various lists
139 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
140
141 $::conns++;
142
143 $self;
144}
145
146sub DESTROY {
147 my $self = shift;
148
149 $::conns--;
150
151 $self->eoconn;
152 delete $conn{$self->{remote_addr}}{$self*1};
153}
154
155# end of connection
156sub eoconn {
157 my $self = shift;
158 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
83} 159}
84 160
85sub slog { 161sub slog {
86 main::slog(@_); 162 my $self = shift;
163 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
87} 164}
88 165
89sub print_response { 166sub response {
90 my ($self, $code, $msg, $hdr, $content) = @_; 167 my ($self, $code, $msg, $hdr, $content) = @_;
91 my $res = "HTTP/1.0 $code $msg\015\012"; 168 my $res = "HTTP/1.1 $code $msg\015\012";
92 169
93 $hdr->{Date} = time2str time; # slow? nah. 170 $self->{h}{connection} ||= $hdr->{Connection};
171
172 $res .= "Date: $HTTP_NOW\015\012";
94 173
95 while (my ($h, $v) = each %$hdr) { 174 while (my ($h, $v) = each %$hdr) {
96 $res .= "$h: $v\015\012" 175 $res .= "$h: $v\015\012"
97 } 176 }
98 $res .= "\015\012$content" if defined $content; 177 $res .= "\015\012";
99 178
179 $res .= $content if defined $content and $self->{method} ne "HEAD";
180
181 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
182
183 print $accesslog $log if $accesslog;
184 print STDERR $log;
185
186 $self->{written} +=
100 print {$self->{fh}} $res; 187 print {$self->{fh}} $res;
101} 188}
102 189
103sub err { 190sub err {
104 my $self = shift; 191 my $self = shift;
105 my ($code, $msg, $hdr, $content) = @_; 192 my ($code, $msg, $hdr, $content) = @_;
… …
107 unless (defined $content) { 194 unless (defined $content) {
108 $content = "$code $msg"; 195 $content = "$code $msg";
109 $hdr->{"Content-Type"} = "text/plain"; 196 $hdr->{"Content-Type"} = "text/plain";
110 $hdr->{"Content-Length"} = length $content; 197 $hdr->{"Content-Length"} = length $content;
111 } 198 }
199 $hdr->{"Connection"} = "close";
112 200
113 $self->slog($msg) if $code;
114
115 $self->print_response($code, $msg, $hdr, $content); 201 $self->response($code, $msg, $hdr, $content);
116 202
117 die bless {}, err::; 203 die bless {}, err::;
118} 204}
119 205
120sub handle { 206sub handle {
121 my $self = shift; 207 my $self = shift;
122 my $fh = $self->{fh}; 208 my $fh = $self->{fh};
123 209
210 my $host;
211
212 $fh->timeout($::REQ_TIMEOUT);
124 #while() { 213 while() {
214 $self->{reqs}++;
215
216 # read request and parse first line
217 my $req = $fh->readline("\015\012\015\012");
218
219 unless (defined $req) {
220 if (exists $self->{version}) {
221 last;
222 } else {
223 $self->err(408, "request timeout");
224 }
225 }
226
125 $self->{h} = {}; 227 $self->{h} = {};
126 228
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); 229 $fh->timeout($::RES_TIMEOUT);
230 my $ip = $self->{remote_addr};
131 231
132 defined $req or 232 if ($blocked{$ip}) {
133 $self->err(408, "request timeout"); 233 $self->err_blocked($blocked{$ip})
234 if $blocked{$ip} > $::NOW;
235
236 delete $blocked{$ip};
237 }
238
239 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
240 my $delay = 120;
241 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
242 if ($delay <= 0) {
243 $self->slog(2, "blocked ip $ip");
244 $self->err_blocked;
245 } else {
246 Coro::Event::do_timer(after => 3);
247 $delay -= 3;
248 }
249 }
250 }
134 251
135 $req =~ /^(?:\015\012)? 252 $req =~ /^(?:\015\012)?
136 (GET|HEAD) \040+ 253 (GET|HEAD) \040+
137 ([^\040]+) \040+ 254 ([^\040]+) \040+
138 HTTP\/([0-9]+\.[0-9]+) 255 HTTP\/([0-9]+\.[0-9]+)
139 \015\012/gx 256 \015\012/gx
140 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 257 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");
144 258
145 $self->{method} = $1; 259 $self->{method} = $1;
146 $self->{uri} = $2; 260 $self->{uri} = $2;
261 $self->{version} = $3;
262
263 $3 =~ /^1\./
264 or $self->err(506, "http protocol version $3 not supported");
147 265
148 # parse headers 266 # parse headers
149 { 267 {
150 my (%hdr, $h, $v); 268 my (%hdr, $h, $v);
151 269
… …
162 280
163 $self->{h}{$h} = substr $v, 1 281 $self->{h}{$h} = substr $v, 1
164 while ($h, $v) = each %hdr; 282 while ($h, $v) = each %hdr;
165 } 283 }
166 284
285 # find out server name and port
286 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
287 $host = $1;
288 } else {
289 $host = $self->{h}{host};
290 }
291
292 if (defined $host) {
167 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 293 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
294 } else {
295 ($self->{server_port}, $host)
296 = unpack_sockaddr_in $self->{fh}->getsockname
297 or $self->err(500, "unable to get socket name");
298 $host = inet_ntoa $host;
299 }
168 300
301 $self->{server_name} = $host;
302
303 # remote id should be unique per user
304 $self->{remote_id} = $self->{remote_addr};
305
306 if (exists $self->{h}{"client-ip"}) {
307 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
308 } elsif (exists $self->{h}{"x-forwarded-for"}) {
309 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
310 }
311
312 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
313
314 eval {
169 $self->map_uri; 315 $self->map_uri;
170 $self->respond; 316 $self->respond;
317 };
318
319 $self->eoconn;
320
321 die if $@ && !ref $@;
322
323 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
324
325 $fh->timeout($::PER_TIMEOUT);
171 #} 326 }
172} 327}
173 328
174# uri => path mapping 329# uri => path mapping
175sub map_uri { 330sub map_uri {
176 my $self = shift; 331 my $self = shift;
177 my $host = $self->{h}{host} || "default"; 332 my $host = $self->{server_name};
178 my $uri = $self->{uri}; 333 my $uri = $self->{uri};
179 334
180 # some massaging, also makes it more secure 335 # some massaging, also makes it more secure
181 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 336 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
182 $uri =~ s%//+%/%g; 337 $uri =~ s%//+%/%g;
… …
188 343
189 $self->{name} = $uri; 344 $self->{name} = $uri;
190 345
191 # now do the path mapping 346 # now do the path mapping
192 $self->{path} = "$::DOCROOT/$host$uri"; 347 $self->{path} = "$::DOCROOT/$host$uri";
193}
194 348
195sub server_address { 349 $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} 350}
222 351
223sub _cgi { 352sub _cgi {
224 my $self = shift; 353 my $self = shift;
225 my $path = shift; 354 my $path = shift;
… …
228 # no two-way xxx supported 357 # no two-way xxx supported
229 if (0 == fork) { 358 if (0 == fork) {
230 open STDOUT, ">&".fileno($self->{fh}); 359 open STDOUT, ">&".fileno($self->{fh});
231 if (chdir $::DOCROOT) { 360 if (chdir $::DOCROOT) {
232 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 361 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
233 $ENV{HTTP_HOST} = $self->server_host; 362 $ENV{HTTP_HOST} = $self->{server_name};
234 $ENV{HTTP_PORT} = $self->{server_host}; 363 $ENV{HTTP_PORT} = $self->{server_port};
235 $ENV{SCRIPT_NAME} = $self->{name}; 364 $ENV{SCRIPT_NAME} = $self->{name};
236 exec $::INDEXPROG; 365 exec $path;
237 } 366 }
238 Coro::State::_exit(0); 367 Coro::State::_exit(0);
239 } else { 368 } else {
369 die;
240 } 370 }
371}
372
373sub server_hostport {
374 $_[0]{server_port} == 80
375 ? $_[0]{server_name}
376 : "$_[0]{server_name}:$_[0]{server_port}";
241} 377}
242 378
243sub respond { 379sub respond {
244 my $self = shift; 380 my $self = shift;
245 my $path = $self->{path}; 381 my $path = $self->{path};
246 382
247 stat $path 383 stat $path
248 or $self->err(404, "not found"); 384 or $self->err(404, "not found");
385
386 $self->{stat} = [stat _];
249 387
250 # idiotic netscape sends idiotic headers AGAIN 388 # idiotic netscape sends idiotic headers AGAIN
251 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 389 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
252 ? str2time $1 : 0; 390 ? str2time $1 : 0;
253 391
254 if (-d _ && -r _) { 392 if (-d _ && -r _) {
255 # directory 393 # directory
256 if ($path !~ /\/$/) { 394 if ($path !~ /\/$/) {
257 # create a redirect to get the trailing "/" 395 # create a redirect to get the trailing "/"
258 my $host = $self->server_hostport; 396 # we don't try to avoid the :80
259 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 397 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
260 } else { 398 } else {
261 $ims < (stat _)[9] 399 $ims < $self->{stat}[9]
262 or $self->err(304, "not modified"); 400 or $self->err(304, "not modified");
263 401
264 if ($self->{method} eq "GET") {
265 if (-r "$path/index.html") { 402 if (-r "$path/index.html") {
266 $self->{path} .= "/index.html"; 403 $self->{path} .= "/index.html";
267 $self->handle_file; 404 $self->handle_file;
268 } else { 405 } else {
269 $self->handle_dir; 406 $self->handle_dir;
270 }
271 } 407 }
272 } 408 }
273 } elsif (-f _ && -r _) { 409 } elsif (-f _ && -r _) {
274 -x _ and $self->err(403, "forbidden"); 410 -x _ and $self->err(403, "forbidden");
275 $self->handle_file; 411 $self->handle_file;
… …
278 } 414 }
279} 415}
280 416
281sub handle_dir { 417sub handle_dir {
282 my $self = shift; 418 my $self = shift;
283 $self->_cgi($::INDEXPROG); 419 my $idx = $self->diridx;
420
421 $self->response(200, "ok",
422 {
423 "Content-Type" => "text/html",
424 "Content-Length" => length $idx,
425 },
426 $idx);
284} 427}
285 428
286sub handle_file { 429sub handle_file {
287 my $self = shift; 430 my $self = shift;
288 my $length = -s _; 431 my $length = -s _;
… …
301 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 444 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
302 } else { 445 } else {
303 ($l, $h) = (0, $length - 1); 446 ($l, $h) = (0, $length - 1);
304 goto ignore; 447 goto ignore;
305 } 448 }
306 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 449 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
307 } 450 }
308 $hdr->{"Content-Range"} = "bytes */$length"; 451 $hdr->{"Content-Range"} = "bytes */$length";
452 $hdr->{"Content-Length"} = $length;
453 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
309 $self->err(416, "not satisfiable", $hdr); 454 $self->err(416, "not satisfiable", $hdr, "");
310 455
311satisfiable: 456satisfiable:
457 # check for segmented downloads
458 if ($l && $::NO_SEGMENTED) {
459 my $delay = 180;
460 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
461 if ($delay <= 0) {
462 $self->err_segmented_download;
463 } else {
464 Coro::Event::do_timer(after => 3); $delay -= 3;
465 }
466 }
467 }
468
312 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 469 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
313 @code = (206, "partial content"); 470 @code = (206, "partial content");
314 $length = $h - $l + 1; 471 $length = $h - $l + 1;
315 472
316ignore: 473ignore:
317 } else { 474 } else {
318 ($l, $h) = (0, $length - 1); 475 ($l, $h) = (0, $length - 1);
319 } 476 }
320 477
321 if ($self->{path} =~ /\.html$/) { 478 $self->{path} =~ /\.([^.]+)$/;
322 $hdr->{"Content-Type"} = "text/html";
323 } else {
324 $hdr->{"Content-Type"} = "application/octet-stream"; 479 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
325 }
326
327 $hdr->{"Content-Length"} = $length; 480 $hdr->{"Content-Length"} = $length;
328 481
329 $self->print_response(@code, $hdr, ""); 482 $self->response(@code, $hdr, "");
330 483
331 if ($self->{method} eq "GET") { 484 if ($self->{method} eq "GET") {
485 $self->{time} = $::NOW;
486
487 my $transfer = $::transfers->guard;
488 $self->{fh}->writable or return;
489
490 push @::wait_time, $::NOW - $self->{time};
491 shift @::wait_time if @wait_time > $wait_time_length;
492 $self->{time} = $::NOW;
493
332 my ($fh, $buf); 494 my ($fh, $buf, $r);
495 my $current = $Coro::current;
333 open $fh, "<", $self->{path} 496 open $fh, "<", $self->{path}
334 or die "$self->{path}: late open failure ($!)"; 497 or die "$self->{path}: late open failure ($!)";
335 498
336 if ($l) {
337 sysseek $fh, $l, 0
338 or die "$self->{path}: cannot seek to $l ($!)";
339 }
340
341 $h -= $l - 1; 499 $h -= $l - 1;
342 500
501 if (0) {
502 if ($l) {
503 sysseek $fh, $l, 0;
504 }
505 }
506
343 while ($h > 0) { 507 while ($h > 0) {
344 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 508 if (0) {
345 print {$self->{fh}} $buf 509 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
510 or last;
511 } else {
512 undef $buf;
513 $aio_requests->down;
514 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
515 $buf, 0, sub {
516 $r = $_[0];
517 $current->ready;
518 });
519 &Coro::schedule;
520 $aio_requests->up;
521 last unless $r;
522 }
523 my $w = $self->{fh}->syswrite($buf)
346 or last; 524 or last;
525 $::written += $w;
526 $self->{written} += $w;
527 $l += $r;
347 } 528 }
348 }
349 529
350 close $fh; 530 close $fh;
531 }
351} 532}
533
5341;

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