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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.2 by root, Thu Aug 9 19:11:13 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
13my $port = new Coro::Socket
14 LocalAddr => $SERVER_HOST,
15 LocalPort => $SERVER_PORT,
16 ReuseAddr => 1,
17 Listen => 1,
18 or die "unable to start server";
19
20$SIG{PIPE} = 'IGNORE'; 17$SIG{PIPE} = 'IGNORE';
21 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
22sub slog { 28sub slog {
23 my $level = shift; 29 my $level = shift;
24 my $format = shift; 30 my $format = shift;
25 printf "---: $format\n", @_; 31 printf "---: $format\n", @_;
26} 32}
27 33
28my $connections = new Coro::Semaphore $MAX_CONNECTS; 34our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
35our $transfers = new Coro::Semaphore $MAX_TRANSFER || 50;
29 36
30my @fh; 37my @newcons;
31my @pool; 38my @pool;
32 39
33# one "execution thread" 40# one "execution thread"
34sub handler { 41sub handler {
35 while () { 42 while () {
36 my $fh = pop @fh; 43 my $new = pop @newcons;
37 if ($fh) { 44 if ($new) {
38 eval { 45 eval {
39 conn->new($fh)->handle; 46 conn->new(@$new)->handle;
40 }; 47 };
41 close $fh;
42 slog 1, "$@" if $@ && !ref $@; 48 slog 1, "$@" if $@ && !ref $@;
43 $connections->up; 49 $connections->up;
44 } else { 50 } else {
45 last if @pool >= $MAX_POOL; 51 last if @pool >= $MAX_POOL;
46 push @pool, $Coro::current; 52 push @pool, $Coro::current;
47 schedule; 53 schedule;
48 } 54 }
49 } 55 }
50} 56}
51 57
58my $http_port = new Coro::Socket
59 LocalAddr => $SERVER_HOST,
60 LocalPort => $SERVER_PORT,
61 ReuseAddr => 1,
62 Listen => 50,
63 or die "unable to start server";
64
65push @listen_sockets, $http_port;
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
52# the "main thread" 75# the "main thread"
53async { 76async {
54 slog 1, "accepting connections"; 77 slog 1, "accepting connections";
55 while () { 78 while () {
56 $connections->down; 79 $connections->down;
57 push @fh, $port->accept; 80 push @newcons, [$http_port->accept];
58 #slog 3, "accepted @$connections ".scalar(@pool); 81 #slog 3, "accepted @$connections ".scalar(@pool);
59 if (@pool) { 82 if (@pool) {
60 (pop @pool)->ready; 83 (pop @pool)->ready;
61 } else { 84 } else {
62 async \&handler; 85 async \&handler;
63 } 86 }
64 87
65 } 88 }
66}; 89};
67 90
68loop;
69print "ende\n";#d#
70
71package conn; 91package conn;
72 92
73use Socket; 93use Socket;
74use HTTP::Date; 94use HTTP::Date;
75use Convert::Scalar 'weaken'; 95use Convert::Scalar 'weaken';
96use Linux::AIO;
76 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
77my %conn; # $conn{ip}{fh} => connobj 106our %conn; # $conn{ip}{self} => connobj
107our %uri; # $uri{ip}{uri}{self}
108our %blocked;
109our %mimetype;
110
111sub read_mimetypes {
112 local *M;
113 if (open M, "<mime_types") {
114 while (<M>) {
115 if (/^([^#]\S+)\t+(\S+)$/) {
116 $mimetype{lc $1} = $2;
117 }
118 }
119 } else {
120 print "cannot open mime_types\n";
121 }
122}
123
124read_mimetypes;
78 125
79sub new { 126sub new {
80 my $class = shift; 127 my $class = shift;
128 my $peername = shift;
81 my $fh = shift; 129 my $fh = shift;
82 my $self = bless { fh => $fh }, $class; 130 my $self = bless { fh => $fh }, $class;
83 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 131 my (undef, $iaddr) = unpack_sockaddr_in $peername
84 or $self->err(500, "unable to get peername"); 132 or $self->err(500, "unable to decode peername");
133
85 $self->{remote_address} = inet_ntoa $iaddr; 134 $self->{remote_addr} = inet_ntoa $iaddr;
135 $self->{time} = $::NOW;
86 136
87 # enter ourselves into various lists 137 # enter ourselves into various lists
88 weaken ($conn{$self->{remote_address}}{$self*1} = $self); 138 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
89 print $self->{remote_address}.": ".($self*1)." > ".%{$conn{$self->{remote_address}}},"\n"; 139
140 $::conns++;
141
90 $self; 142 $self;
91} 143}
92 144
93sub DESTROY { 145sub DESTROY {
94 my $self = shift; 146 my $self = shift;
147
148 $::conns--;
149
150 $self->eoconn;
95 delete $conn{$self->{remote_address}}{$self*1}; 151 delete $conn{$self->{remote_addr}}{$self*1};
152}
153
154# end of connection
155sub eoconn {
156 my $self = shift;
157 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
96} 158}
97 159
98sub slog { 160sub slog {
99 main::slog(@_); 161 my $self = shift;
162 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
100} 163}
101 164
102sub print_response { 165sub response {
103 my ($self, $code, $msg, $hdr, $content) = @_; 166 my ($self, $code, $msg, $hdr, $content) = @_;
104 my $res = "HTTP/1.0 $code $msg\015\012"; 167 my $res = "HTTP/1.1 $code $msg\015\012";
105 168
106 $hdr->{Date} = time2str time; # slow? nah. 169 $self->{h}{connection} ||= $hdr->{Connection};
170
171 $res .= "Date: $HTTP_NOW\015\012";
107 172
108 while (my ($h, $v) = each %$hdr) { 173 while (my ($h, $v) = each %$hdr) {
109 $res .= "$h: $v\015\012" 174 $res .= "$h: $v\015\012"
110 } 175 }
111 $res .= "\015\012$content" if defined $content; 176 $res .= "\015\012";
112 177
178 $res .= $content if defined $content and $self->{method} ne "HEAD";
179
113 print STDERR "$self->{remote_address} \"$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";
114 181
182 print $accesslog $log if $accesslog;
183 print STDERR $log;
184
185 $self->{written} +=
115 print {$self->{fh}} $res; 186 print {$self->{fh}} $res;
116} 187}
117 188
118sub err { 189sub err {
119 my $self = shift; 190 my $self = shift;
120 my ($code, $msg, $hdr, $content) = @_; 191 my ($code, $msg, $hdr, $content) = @_;
… …
122 unless (defined $content) { 193 unless (defined $content) {
123 $content = "$code $msg"; 194 $content = "$code $msg";
124 $hdr->{"Content-Type"} = "text/plain"; 195 $hdr->{"Content-Type"} = "text/plain";
125 $hdr->{"Content-Length"} = length $content; 196 $hdr->{"Content-Length"} = length $content;
126 } 197 }
198 $hdr->{"Connection"} = "close";
127 199
128 $self->slog($msg) if $code;
129
130 $self->print_response($code, $msg, $hdr, $content); 200 $self->response($code, $msg, $hdr, $content);
131 201
132 die bless {}, err::; 202 die bless {}, err::;
133} 203}
134 204
135sub handle { 205sub handle {
136 my $self = shift; 206 my $self = shift;
137 my $fh = $self->{fh}; 207 my $fh = $self->{fh};
138 208
209 my $host;
210
211 $fh->timeout($::REQ_TIMEOUT);
139 #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
140 $self->{h} = {}; 226 $self->{h} = {};
141 227
142 # read request and parse first line
143 $fh->timeout($::REQ_TIMEOUT);
144 my $req = $fh->readline("\015\012\015\012");
145 $fh->timeout($::RES_TIMEOUT); 228 $fh->timeout($::RES_TIMEOUT);
229 my $ip = $self->{remote_addr};
146 230
147 defined $req or 231 if ($blocked{$ip}) {
148 $self->err(408, "request timeout"); 232 $self->err_blocked($blocked{$ip})
233 if $blocked{$ip} > $::NOW;
234
235 delete $blocked{$ip};
236 }
237
238 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
239 my $delay = 120;
240 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
241 if ($delay <= 0) {
242 $self->slog(2, "blocked ip $ip");
243 $self->err_blocked;
244 } else {
245 Coro::Event::do_timer(after => 3);
246 $delay -= 3;
247 }
248 }
249 }
149 250
150 $req =~ /^(?:\015\012)? 251 $req =~ /^(?:\015\012)?
151 (GET|HEAD) \040+ 252 (GET|HEAD) \040+
152 ([^\040]+) \040+ 253 ([^\040]+) \040+
153 HTTP\/([0-9]+\.[0-9]+) 254 HTTP\/([0-9]+\.[0-9]+)
154 \015\012/gx 255 \015\012/gx
155 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 256 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
156
157 $2 ne "1.0"
158 or $self->err(506, "http protocol version not supported");
159 257
160 $self->{method} = $1; 258 $self->{method} = $1;
161 $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");
162 264
163 # parse headers 265 # parse headers
164 { 266 {
165 my (%hdr, $h, $v); 267 my (%hdr, $h, $v);
166 268
… …
177 279
178 $self->{h}{$h} = substr $v, 1 280 $self->{h}{$h} = substr $v, 1
179 while ($h, $v) = each %hdr; 281 while ($h, $v) = each %hdr;
180 } 282 }
181 283
284 # find out server name and port
285 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
286 $host = $1;
287 } else {
288 $host = $self->{h}{host};
289 }
290
291 if (defined $host) {
182 $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 }
183 299
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 }
310
311 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
312
313 eval {
184 $self->map_uri; 314 $self->map_uri;
185
186 Coro::Event::do_timer(after => 5);
187
188 $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);
189 #} 325 }
190} 326}
191 327
192# uri => path mapping 328# uri => path mapping
193sub map_uri { 329sub map_uri {
194 my $self = shift; 330 my $self = shift;
195 my $host = $self->{h}{host} || "default"; 331 my $host = $self->{server_name};
196 my $uri = $self->{uri}; 332 my $uri = $self->{uri};
197 333
198 # some massaging, also makes it more secure 334 # some massaging, also makes it more secure
199 $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;
200 $uri =~ s%//+%/%g; 336 $uri =~ s%//+%/%g;
… …
206 342
207 $self->{name} = $uri; 343 $self->{name} = $uri;
208 344
209 # now do the path mapping 345 # now do the path mapping
210 $self->{path} = "$::DOCROOT/$host$uri"; 346 $self->{path} = "$::DOCROOT/$host$uri";
211}
212 347
213sub server_address { 348 $self->access_check;
214 my $self = shift;
215 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
216 or $self->err(500, "unable to get socket name");
217 ((inet_ntoa $iaddr), $port);
218}
219
220sub server_host {
221 my $self = shift;
222 if (exists $self->{h}{host}) {
223 return $self->{h}{host};
224 } else {
225 return (($self->server_address)[0]);
226 }
227}
228
229sub server_hostport {
230 my $self = shift;
231 my ($host, $port);
232 if (exists $self->{h}{host}) {
233 ($host, $port) = ($self->{h}{host}, $self->{server_port});
234 } else {
235 ($host, $port) = $self->server_address;
236 }
237 $port = $port == 80 ? "" : ":$port";
238 $host.$port;
239} 349}
240 350
241sub _cgi { 351sub _cgi {
242 my $self = shift; 352 my $self = shift;
243 my $path = shift; 353 my $path = shift;
… …
246 # no two-way xxx supported 356 # no two-way xxx supported
247 if (0 == fork) { 357 if (0 == fork) {
248 open STDOUT, ">&".fileno($self->{fh}); 358 open STDOUT, ">&".fileno($self->{fh});
249 if (chdir $::DOCROOT) { 359 if (chdir $::DOCROOT) {
250 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 360 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
251 $ENV{HTTP_HOST} = $self->server_host; 361 $ENV{HTTP_HOST} = $self->{server_name};
252 $ENV{HTTP_PORT} = $self->{server_host}; 362 $ENV{HTTP_PORT} = $self->{server_port};
253 $ENV{SCRIPT_NAME} = $self->{name}; 363 $ENV{SCRIPT_NAME} = $self->{name};
254 exec $::INDEXPROG; 364 exec $path;
255 } 365 }
256 Coro::State::_exit(0); 366 Coro::State::_exit(0);
257 } else { 367 } else {
368 die;
258 } 369 }
370}
371
372sub server_hostport {
373 $_[0]{server_port} == 80
374 ? $_[0]{server_name}
375 : "$_[0]{server_name}:$_[0]{server_port}";
259} 376}
260 377
261sub respond { 378sub respond {
262 my $self = shift; 379 my $self = shift;
263 my $path = $self->{path}; 380 my $path = $self->{path};
264 381
265 stat $path 382 stat $path
266 or $self->err(404, "not found"); 383 or $self->err(404, "not found");
384
385 $self->{stat} = [stat _];
267 386
268 # idiotic netscape sends idiotic headers AGAIN 387 # idiotic netscape sends idiotic headers AGAIN
269 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 388 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
270 ? str2time $1 : 0; 389 ? str2time $1 : 0;
271 390
272 if (-d _ && -r _) { 391 if (-d _ && -r _) {
273 # directory 392 # directory
274 if ($path !~ /\/$/) { 393 if ($path !~ /\/$/) {
275 # create a redirect to get the trailing "/" 394 # create a redirect to get the trailing "/"
276 my $host = $self->server_hostport; 395 # we don't try to avoid the :80
277 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 396 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
278 } else { 397 } else {
279 $ims < (stat _)[9] 398 $ims < $self->{stat}[9]
280 or $self->err(304, "not modified"); 399 or $self->err(304, "not modified");
281 400
282 if ($self->{method} eq "GET") {
283 if (-r "$path/index.html") { 401 if (-r "$path/index.html") {
284 $self->{path} .= "/index.html"; 402 $self->{path} .= "/index.html";
285 $self->handle_file; 403 $self->handle_file;
286 } else { 404 } else {
287 $self->handle_dir; 405 $self->handle_dir;
288 }
289 } 406 }
290 } 407 }
291 } elsif (-f _ && -r _) { 408 } elsif (-f _ && -r _) {
292 -x _ and $self->err(403, "forbidden"); 409 -x _ and $self->err(403, "forbidden");
293 $self->handle_file; 410 $self->handle_file;
… …
296 } 413 }
297} 414}
298 415
299sub handle_dir { 416sub handle_dir {
300 my $self = shift; 417 my $self = shift;
301 $self->_cgi($::INDEXPROG); 418 my $idx = $self->diridx;
419
420 $self->response(200, "ok",
421 {
422 "Content-Type" => "text/html",
423 "Content-Length" => length $idx,
424 },
425 $idx);
302} 426}
303 427
304sub handle_file { 428sub handle_file {
305 my $self = shift; 429 my $self = shift;
306 my $length = -s _; 430 my $length = -s _;
… …
319 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 443 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
320 } else { 444 } else {
321 ($l, $h) = (0, $length - 1); 445 ($l, $h) = (0, $length - 1);
322 goto ignore; 446 goto ignore;
323 } 447 }
324 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 448 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
325 } 449 }
326 $hdr->{"Content-Range"} = "bytes */$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"}.")");
327 $self->err(416, "not satisfiable", $hdr); 453 $self->err(416, "not satisfiable", $hdr, "");
328 454
329satisfiable: 455satisfiable:
456 # check for segmented downloads
457 if ($l && $::NO_SEGMENTED) {
458 my $delay = 180;
459 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
460 if ($delay <= 0) {
461 $self->err_segmented_download;
462 } else {
463 Coro::Event::do_timer(after => 3); $delay -= 3;
464 }
465 }
466 }
467
330 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 468 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
331 @code = (206, "partial content"); 469 @code = (206, "partial content");
332 $length = $h - $l + 1; 470 $length = $h - $l + 1;
333 471
334ignore: 472ignore:
335 } else { 473 } else {
336 ($l, $h) = (0, $length - 1); 474 ($l, $h) = (0, $length - 1);
337 } 475 }
338 476
339 if ($self->{path} =~ /\.html$/) { 477 $self->{path} =~ /\.([^.]+)$/;
340 $hdr->{"Content-Type"} = "text/html";
341 } else {
342 $hdr->{"Content-Type"} = "application/octet-stream"; 478 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
343 }
344
345 $hdr->{"Content-Length"} = $length; 479 $hdr->{"Content-Length"} = $length;
346 480
347 $self->print_response(@code, $hdr, ""); 481 $self->response(@code, $hdr, "");
348 482
349 if ($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} = $::NOW;
492
350 my ($fh, $buf); 493 my ($fh, $buf, $r);
494 my $current = $Coro::current;
351 open $fh, "<", $self->{path} 495 open $fh, "<", $self->{path}
352 or die "$self->{path}: late open failure ($!)"; 496 or die "$self->{path}: late open failure ($!)";
353 497
354 if ($l) {
355 sysseek $fh, $l, 0
356 or die "$self->{path}: cannot seek to $l ($!)";
357 }
358
359 $h -= $l - 1; 498 $h -= $l - 1;
360 499
500 if (0) {
501 if ($l) {
502 sysseek $fh, $l, 0;
503 }
504 }
505
361 while ($h > 0) { 506 while ($h > 0) {
362 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 507 if (0) {
363 print {$self->{fh}} $buf 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 }
522 my $w = $self->{fh}->syswrite($buf)
364 or last; 523 or last;
524 $::written += $w;
525 $self->{written} += $w;
526 $l += $r;
365 } 527 }
366 }
367 528
368 close $fh; 529 close $fh;
530 }
369} 531}
370 532
3711; 5331;

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