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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 1.31 by root, Mon Aug 27 05:05:26 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
… …
10 8
11# at least on my machine, this thingy serves files 9# at least on my machine, this thingy serves files
12# quite a bit faster than apache, ;) 10# quite a bit faster than apache, ;)
13# and quite a bit slower than thttpd :( 11# and quite a bit slower than thttpd :(
14 12
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'; 13$SIG{PIPE} = 'IGNORE';
23 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
24sub slog { 24sub slog {
25 my $level = shift; 25 my $level = shift;
26 my $format = shift; 26 my $format = shift;
27 printf "---: $format\n", @_; 27 printf "---: $format\n", @_;
28} 28}
29 29
30my $connections = new Coro::Semaphore $MAX_CONNECTS; 30my $connections = new Coro::Semaphore $MAX_CONNECTS;
31 31
32my @fh; 32my @newcons;
33my @pool; 33my @pool;
34 34
35# one "execution thread"
35sub handler { 36sub handler {
36 while () { 37 while () {
37 my $fh = pop @fh; 38 my $new = pop @newcons;
38 if ($fh) { 39 if ($new) {
39 eval { 40 eval {
40 conn->new($fh)->handle; 41 conn->new(@$new)->handle;
41 }; 42 };
42 close $fh;
43 slog 1, "$@" if $@ && !ref $@; 43 slog 1, "$@" if $@ && !ref $@;
44 $connections->up; 44 $connections->up;
45 } else { 45 } else {
46 last if @pool >= $MAX_POOL; 46 last if @pool >= $MAX_POOL;
47 push @pool, $Coro::current; 47 push @pool, $Coro::current;
48 schedule; 48 schedule;
49 } 49 }
50 } 50 }
51} 51}
52 52
53my $http_port = new Coro::Socket
54 LocalAddr => $SERVER_HOST,
55 LocalPort => $SERVER_PORT,
56 ReuseAddr => 1,
57 Listen => 50,
58 or die "unable to start server";
59
60push @listen_sockets, $http_port;
61
62# the "main thread"
53async { 63async {
54 slog 1, "accepting connections"; 64 slog 1, "accepting connections";
55 while () { 65 while () {
56 $connections->down; 66 $connections->down;
57 push @fh, $port->accept; 67 push @newcons, [$http_port->accept];
58 #slog 3, "accepted @$connections ".scalar(@pool); 68 #slog 3, "accepted @$connections ".scalar(@pool);
69 $::NOW = time;
59 if (@pool) { 70 if (@pool) {
60 (pop @pool)->ready; 71 (pop @pool)->ready;
61 } else { 72 } else {
62 async \&handler; 73 async \&handler;
63 } 74 }
64 75
65 } 76 }
66}; 77};
67 78
68loop;
69print "ende\n";#d#
70
71package conn; 79package conn;
72 80
73use Socket; 81use Socket;
74use HTTP::Date; 82use HTTP::Date;
83use Convert::Scalar 'weaken';
84use Linux::AIO;
85
86Linux::AIO::min_parallel $::AIO_PARALLEL;
87
88my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
89
90Event->io(fd => Linux::AIO::poll_fileno,
91 poll => 'r', async => 1,
92 cb => \&Linux::AIO::poll_cb);
93
94our %conn; # $conn{ip}{self} => connobj
95our %uri; # $uri{ip}{uri}{self}
96our %blocked;
97our %mimetype;
98
99sub read_mimetypes {
100 local *M;
101 if (open M, "<mime_types") {
102 while (<M>) {
103 if (/^([^#]\S+)\t+(\S+)$/) {
104 $mimetype{lc $1} = $2;
105 }
106 }
107 } else {
108 print "cannot open mime_types\n";
109 }
110}
111
112read_mimetypes;
75 113
76sub new { 114sub new {
77 my $class = shift; 115 my $class = shift;
116 my $peername = shift;
78 my $fh = shift; 117 my $fh = shift;
118 my $self = bless { fh => $fh }, $class;
79 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 119 my (undef, $iaddr) = unpack_sockaddr_in $peername
80 or $self->err(500, "unable to get peername"); 120 or $self->err(500, "unable to decode peername");
121
81 $self->{remote_address} = inet_ntoa $iaddr; 122 $self->{remote_addr} = inet_ntoa $iaddr;
82 bless { fh => $fh }, $class; 123 $self->{time} = $::NOW;
124
125 # enter ourselves into various lists
126 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
127
128 $::conns++;
129
130 $self;
131}
132
133sub DESTROY {
134 my $self = shift;
135
136 $::conns--;
137
138 $self->eoconn;
139 delete $conn{$self->{remote_addr}}{$self*1};
140}
141
142# end of connection
143sub eoconn {
144 my $self = shift;
145 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
83} 146}
84 147
85sub slog { 148sub slog {
86 main::slog(@_); 149 my $self = shift;
150 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
87} 151}
88 152
89sub print_response { 153sub response {
90 my ($self, $code, $msg, $hdr, $content) = @_; 154 my ($self, $code, $msg, $hdr, $content) = @_;
91 my $res = "HTTP/1.0 $code $msg\015\012"; 155 my $res = "HTTP/1.1 $code $msg\015\012";
92 156
93 $hdr->{Date} = time2str time; # slow? nah. 157 $self->{h}{connection} ||= $hdr->{Connection};
158
159 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :(
94 160
95 while (my ($h, $v) = each %$hdr) { 161 while (my ($h, $v) = each %$hdr) {
96 $res .= "$h: $v\015\012" 162 $res .= "$h: $v\015\012"
97 } 163 }
98 $res .= "\015\012$content" if defined $content; 164 $res .= "\015\012";
99 165
166 $res .= $content if defined $content and $self->{method} ne "HEAD";
167
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;
172
173 $self->{written} +=
100 print {$self->{fh}} $res; 174 print {$self->{fh}} $res;
101} 175}
102 176
103sub err { 177sub err {
104 my $self = shift; 178 my $self = shift;
105 my ($code, $msg, $hdr, $content) = @_; 179 my ($code, $msg, $hdr, $content) = @_;
… …
107 unless (defined $content) { 181 unless (defined $content) {
108 $content = "$code $msg"; 182 $content = "$code $msg";
109 $hdr->{"Content-Type"} = "text/plain"; 183 $hdr->{"Content-Type"} = "text/plain";
110 $hdr->{"Content-Length"} = length $content; 184 $hdr->{"Content-Length"} = length $content;
111 } 185 }
186 $hdr->{"Connection"} = "close";
112 187
113 $self->slog($msg) if $code;
114
115 $self->print_response($code, $msg, $hdr, $content); 188 $self->response($code, $msg, $hdr, $content);
116 189
117 die bless {}, err::; 190 die bless {}, err::;
118} 191}
119 192
120sub handle { 193sub handle {
121 my $self = shift; 194 my $self = shift;
122 my $fh = $self->{fh}; 195 my $fh = $self->{fh};
123 196
197 my $host;
198
199 $fh->timeout($::REQ_TIMEOUT);
124 #while() { 200 while() {
201 $self->{reqs}++;
202
203 # read request and parse first line
204 my $req = $fh->readline("\015\012\015\012");
205
206 unless (defined $req) {
207 if (exists $self->{version}) {
208 last;
209 } else {
210 $self->err(408, "request timeout");
211 }
212 }
213
125 $self->{h} = {}; 214 $self->{h} = {};
126 215
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); 216 $fh->timeout($::RES_TIMEOUT);
217 my $ip = $self->{remote_addr};
131 218
132 defined $req or 219 if ($blocked{$ip}) {
133 $self->err(408, "request timeout"); 220 $self->err_blocked($blocked{$ip})
221 if $blocked{$ip} > $::NOW;
222
223 delete $blocked{$ip};
224 }
225
226 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
227 my $delay = 120;
228 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
229 if ($delay <= 0) {
230 $self->slog(2, "blocked ip $ip");
231 $self->err_blocked;
232 } else {
233 Coro::Event::do_timer(after => 3);
234 $delay -= 3;
235 }
236 }
237 }
134 238
135 $req =~ /^(?:\015\012)? 239 $req =~ /^(?:\015\012)?
136 (GET|HEAD) \040+ 240 (GET|HEAD) \040+
137 ([^\040]+) \040+ 241 ([^\040]+) \040+
138 HTTP\/([0-9]+\.[0-9]+) 242 HTTP\/([0-9]+\.[0-9]+)
139 \015\012/gx 243 \015\012/gx
140 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 244 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");
144 245
145 $self->{method} = $1; 246 $self->{method} = $1;
146 $self->{uri} = $2; 247 $self->{uri} = $2;
248 $self->{version} = $3;
249
250 $3 =~ /^1\./
251 or $self->err(506, "http protocol version $3 not supported");
147 252
148 # parse headers 253 # parse headers
149 { 254 {
150 my (%hdr, $h, $v); 255 my (%hdr, $h, $v);
151 256
… …
162 267
163 $self->{h}{$h} = substr $v, 1 268 $self->{h}{$h} = substr $v, 1
164 while ($h, $v) = each %hdr; 269 while ($h, $v) = each %hdr;
165 } 270 }
166 271
272 # find out server name and port
273 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
274 $host = $1;
275 } else {
276 $host = $self->{h}{host};
277 }
278
279 if (defined $host) {
167 $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 }
168 287
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 }
298
299 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
300
301 eval {
169 $self->map_uri; 302 $self->map_uri;
170 $self->respond; 303 $self->respond;
304 };
305
306 $self->eoconn;
307
308 die if $@ && !ref $@;
309
310 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
311
312 $fh->timeout($::PER_TIMEOUT);
171 #} 313 }
172} 314}
173 315
174# uri => path mapping 316# uri => path mapping
175sub map_uri { 317sub map_uri {
176 my $self = shift; 318 my $self = shift;
177 my $host = $self->{h}{host} || "default"; 319 my $host = $self->{server_name};
178 my $uri = $self->{uri}; 320 my $uri = $self->{uri};
179 321
180 # some massaging, also makes it more secure 322 # some massaging, also makes it more secure
181 $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;
182 $uri =~ s%//+%/%g; 324 $uri =~ s%//+%/%g;
… …
188 330
189 $self->{name} = $uri; 331 $self->{name} = $uri;
190 332
191 # now do the path mapping 333 # now do the path mapping
192 $self->{path} = "$::DOCROOT/$host$uri"; 334 $self->{path} = "$::DOCROOT/$host$uri";
193}
194 335
195sub server_address { 336 $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} 337}
222 338
223sub _cgi { 339sub _cgi {
224 my $self = shift; 340 my $self = shift;
225 my $path = shift; 341 my $path = shift;
… …
228 # no two-way xxx supported 344 # no two-way xxx supported
229 if (0 == fork) { 345 if (0 == fork) {
230 open STDOUT, ">&".fileno($self->{fh}); 346 open STDOUT, ">&".fileno($self->{fh});
231 if (chdir $::DOCROOT) { 347 if (chdir $::DOCROOT) {
232 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 348 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
233 $ENV{HTTP_HOST} = $self->server_host; 349 $ENV{HTTP_HOST} = $self->{server_name};
234 $ENV{HTTP_PORT} = $self->{server_host}; 350 $ENV{HTTP_PORT} = $self->{server_port};
235 $ENV{SCRIPT_NAME} = $self->{name}; 351 $ENV{SCRIPT_NAME} = $self->{name};
236 exec $::INDEXPROG; 352 exec $path;
237 } 353 }
238 Coro::State::_exit(0); 354 Coro::State::_exit(0);
239 } else { 355 } else {
356 die;
240 } 357 }
358}
359
360sub server_hostport {
361 $_[0]{server_port} == 80
362 ? $_[0]{server_name}
363 : "$_[0]{server_name}:$_[0]{server_port}";
241} 364}
242 365
243sub respond { 366sub respond {
244 my $self = shift; 367 my $self = shift;
245 my $path = $self->{path}; 368 my $path = $self->{path};
246 369
247 stat $path 370 stat $path
248 or $self->err(404, "not found"); 371 or $self->err(404, "not found");
372
373 $self->{stat} = [stat _];
249 374
250 # idiotic netscape sends idiotic headers AGAIN 375 # idiotic netscape sends idiotic headers AGAIN
251 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 376 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
252 ? str2time $1 : 0; 377 ? str2time $1 : 0;
253 378
254 if (-d _ && -r _) { 379 if (-d _ && -r _) {
255 # directory 380 # directory
256 if ($path !~ /\/$/) { 381 if ($path !~ /\/$/) {
257 # create a redirect to get the trailing "/" 382 # create a redirect to get the trailing "/"
258 my $host = $self->server_hostport; 383 # we don't try to avoid the :80
259 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 384 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
260 } else { 385 } else {
261 $ims < (stat _)[9] 386 $ims < $self->{stat}[9]
262 or $self->err(304, "not modified"); 387 or $self->err(304, "not modified");
263 388
264 if ($self->{method} eq "GET") {
265 if (-r "$path/index.html") { 389 if (-r "$path/index.html") {
266 $self->{path} .= "/index.html"; 390 $self->{path} .= "/index.html";
267 $self->handle_file; 391 $self->handle_file;
268 } else { 392 } else {
269 $self->handle_dir; 393 $self->handle_dir;
270 }
271 } 394 }
272 } 395 }
273 } elsif (-f _ && -r _) { 396 } elsif (-f _ && -r _) {
274 -x _ and $self->err(403, "forbidden"); 397 -x _ and $self->err(403, "forbidden");
275 $self->handle_file; 398 $self->handle_file;
… …
278 } 401 }
279} 402}
280 403
281sub handle_dir { 404sub handle_dir {
282 my $self = shift; 405 my $self = shift;
283 $self->_cgi($::INDEXPROG); 406 my $idx = $self->diridx;
407
408 $self->response(200, "ok",
409 {
410 "Content-Type" => "text/html",
411 "Content-Length" => length $idx,
412 },
413 $idx);
284} 414}
285 415
286sub handle_file { 416sub handle_file {
287 my $self = shift; 417 my $self = shift;
288 my $length = -s _; 418 my $length = -s _;
… …
301 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 431 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
302 } else { 432 } else {
303 ($l, $h) = (0, $length - 1); 433 ($l, $h) = (0, $length - 1);
304 goto ignore; 434 goto ignore;
305 } 435 }
306 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 436 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
307 } 437 }
308 $hdr->{"Content-Range"} = "bytes */$length"; 438 $hdr->{"Content-Range"} = "bytes */$length";
439 $hdr->{"Content-Length"} = $length;
440 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
309 $self->err(416, "not satisfiable", $hdr); 441 $self->err(416, "not satisfiable", $hdr, "");
310 442
311satisfiable: 443satisfiable:
444 # check for segmented downloads
445 if ($l && $::NO_SEGMENTED) {
446 my $delay = 180;
447 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
448 if ($delay <= 0) {
449 $self->err_segmented_download;
450 } else {
451 Coro::Event::do_timer(after => 3); $delay -= 3;
452 }
453 }
454 }
455
312 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 456 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
313 @code = (206, "partial content"); 457 @code = (206, "partial content");
314 $length = $h - $l + 1; 458 $length = $h - $l + 1;
315 459
316ignore: 460ignore:
317 } else { 461 } else {
318 ($l, $h) = (0, $length - 1); 462 ($l, $h) = (0, $length - 1);
319 } 463 }
320 464
321 if ($self->{path} =~ /\.html$/) { 465 $self->{path} =~ /\.([^.]+)$/;
322 $hdr->{"Content-Type"} = "text/html";
323 } else {
324 $hdr->{"Content-Type"} = "application/octet-stream"; 466 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
325 }
326
327 $hdr->{"Content-Length"} = $length; 467 $hdr->{"Content-Length"} = $length;
328 468
329 $self->print_response(@code, $hdr, ""); 469 $self->response(@code, $hdr, "");
330 470
331 if ($self->{method} eq "GET") { 471 if ($self->{method} eq "GET") {
332 my ($fh, $buf); 472 my ($fh, $buf, $r);
473 my $current = $Coro::current;
333 open $fh, "<", $self->{path} 474 open $fh, "<", $self->{path}
334 or die "$self->{path}: late open failure ($!)"; 475 or die "$self->{path}: late open failure ($!)";
335 476
336 if ($l) {
337 sysseek $fh, $l, 0
338 or die "$self->{path}: cannot seek to $l ($!)";
339 }
340
341 $h -= $l - 1; 477 $h -= $l - 1;
342 478
479 if (0) {
480 if ($l) {
481 sysseek $fh, $l, 0;
482 }
483 }
484
343 while ($h > 0) { 485 while ($h > 0) {
344 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 486 if (0) {
345 print {$self->{fh}} $buf 487 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
488 or last;
489 } else {
490 undef $buf;
491 $aio_requests->down;
492 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
493 $buf, 0, sub {
494 $r = $_[0];
495 $current->ready;
496 });
497 &Coro::schedule;
498 $aio_requests->up;
499 last unless $r;
500 }
501 my $w = $self->{fh}->syswrite($buf)
346 or last; 502 or last;
503 $::written += $w;
504 $self->{written} += $w;
505 $l += $r;
347 } 506 }
348 } 507 }
349 508
350 close $fh; 509 close $fh;
351} 510}
511
5121;

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