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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.1 by root, Thu Aug 9 02:57:54 2001 UTC vs.
Revision 1.28 by root, Mon Aug 20 16:58:19 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
88Event->io(fd => Linux::AIO::poll_fileno,
89 poll => 'r', async => 1,
90 cb => \&Linux::AIO::poll_cb);
91
92our %conn; # $conn{ip}{self} => connobj
93our %uri; # $uri{ip}{uri}{self}
94our %blocked;
95our %mimetype;
96
97sub read_mimetypes {
98 local *M;
99 if (open M, "<mime_types") {
100 while (<M>) {
101 if (/^([^#]\S+)\t+(\S+)$/) {
102 $mimetype{lc $1} = $2;
103 }
104 }
105 } else {
106 print "cannot open mime_types\n";
107 }
108}
109
110read_mimetypes;
75 111
76sub new { 112sub new {
77 my $class = shift; 113 my $class = shift;
114 my $peername = shift;
78 my $fh = shift; 115 my $fh = shift;
116 my $self = bless { fh => $fh }, $class;
79 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 117 my (undef, $iaddr) = unpack_sockaddr_in $peername
80 or $self->err(500, "unable to get peername"); 118 or $self->err(500, "unable to decode peername");
119
81 $self->{remote_address} = inet_ntoa $iaddr; 120 $self->{remote_addr} = inet_ntoa $iaddr;
82 bless { fh => $fh }, $class; 121 $self->{time} = $::NOW;
122
123 # enter ourselves into various lists
124 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
125
126 $::conns++;
127
128 $self;
129}
130
131sub DESTROY {
132 my $self = shift;
133
134 $::conns--;
135
136 $self->eoconn;
137 delete $conn{$self->{remote_addr}}{$self*1};
138}
139
140# end of connection
141sub eoconn {
142 my $self = shift;
143 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
83} 144}
84 145
85sub slog { 146sub slog {
86 main::slog(@_); 147 my $self = shift;
148 main::slog($_[0], "$self->{remote_addr}> $_[1]");
87} 149}
88 150
89sub print_response { 151sub response {
90 my ($self, $code, $msg, $hdr, $content) = @_; 152 my ($self, $code, $msg, $hdr, $content) = @_;
91 my $res = "HTTP/1.0 $code $msg\015\012"; 153 my $res = "HTTP/1.1 $code $msg\015\012";
92 154
93 $hdr->{Date} = time2str time; # slow? nah. 155 $self->{h}{connection} ||= $hdr->{Connection};
156
157 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :(
94 158
95 while (my ($h, $v) = each %$hdr) { 159 while (my ($h, $v) = each %$hdr) {
96 $res .= "$h: $v\015\012" 160 $res .= "$h: $v\015\012"
97 } 161 }
98 $res .= "\015\012$content" if defined $content; 162 $res .= "\015\012";
99 163
164 $res .= $content if defined $content and $self->{method} ne "HEAD";
165
166 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
167
168 print $accesslog $log if $accesslog;
169 print STDERR $log;
170
171 $self->{written} +=
100 print {$self->{fh}} $res; 172 print {$self->{fh}} $res;
101} 173}
102 174
103sub err { 175sub err {
104 my $self = shift; 176 my $self = shift;
105 my ($code, $msg, $hdr, $content) = @_; 177 my ($code, $msg, $hdr, $content) = @_;
… …
107 unless (defined $content) { 179 unless (defined $content) {
108 $content = "$code $msg"; 180 $content = "$code $msg";
109 $hdr->{"Content-Type"} = "text/plain"; 181 $hdr->{"Content-Type"} = "text/plain";
110 $hdr->{"Content-Length"} = length $content; 182 $hdr->{"Content-Length"} = length $content;
111 } 183 }
184 $hdr->{"Connection"} = "close";
112 185
113 $self->slog($msg) if $code;
114
115 $self->print_response($code, $msg, $hdr, $content); 186 $self->response($code, $msg, $hdr, $content);
116 187
117 die bless {}, err::; 188 die bless {}, err::;
118} 189}
119 190
191sub err_blocked {
192 my $self = shift;
193 my $ip = $self->{remote_addr};
194 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
195
196 Coro::Event::do_timer(after => 20*rand);
197
198 $self->err(401, "too many connections",
199 {
200 "Content-Type" => "text/html",
201 "Retry-After" => $::BLOCKTIME,
202 "Warning" => "Please do NOT retry, you have been blocked",
203 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
204 "Connection" => "close",
205 },
206 <<EOF);
207<html>
208<head>
209<title>Too many connections</title>
210</head>
211<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
212
213<p>You have been blocked because you opened too many connections. You
214may retry at</p>
215
216 <p><blockquote>$time.</blockquote></p>
217
218<p>Until then, each new access will renew the block. You might want to have a
219look at the <a href="http://www.goof.com/pcg/marc/animefaq.html#connectionlimit">FAQ</a>.</p>
220
221</body></html>
222EOF
223}
224
120sub handle { 225sub handle {
121 my $self = shift; 226 my $self = shift;
122 my $fh = $self->{fh}; 227 my $fh = $self->{fh};
123 228
229 $fh->timeout($::REQ_TIMEOUT);
124 #while() { 230 while() {
231 $self->{reqs}++;
232
233 # read request and parse first line
234 my $req = $fh->readline("\015\012\015\012");
235
236 unless (defined $req) {
237 if (exists $self->{version}) {
238 last;
239 } else {
240 $self->err(408, "request timeout");
241 }
242 }
243
125 $self->{h} = {}; 244 $self->{h} = {};
126 245
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); 246 $fh->timeout($::RES_TIMEOUT);
247 my $ip = $self->{remote_addr};
131 248
132 defined $req or 249 if ($blocked{$ip}) {
133 $self->err(408, "request timeout"); 250 $self->err_blocked($blocked{$ip})
251 if $blocked{$ip} > $::NOW;
252
253 delete $blocked{$ip};
254 }
255
256 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
257 $self->slog(2, "blocked ip $ip");
258 $self->err_blocked;
259 }
134 260
135 $req =~ /^(?:\015\012)? 261 $req =~ /^(?:\015\012)?
136 (GET|HEAD) \040+ 262 (GET|HEAD) \040+
137 ([^\040]+) \040+ 263 ([^\040]+) \040+
138 HTTP\/([0-9]+\.[0-9]+) 264 HTTP\/([0-9]+\.[0-9]+)
139 \015\012/gx 265 \015\012/gx
140 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 266 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");
144 267
145 $self->{method} = $1; 268 $self->{method} = $1;
146 $self->{uri} = $2; 269 $self->{uri} = $2;
270 $self->{version} = $3;
271
272 $3 =~ /^1\./
273 or $self->err(506, "http protocol version $3 not supported");
147 274
148 # parse headers 275 # parse headers
149 { 276 {
150 my (%hdr, $h, $v); 277 my (%hdr, $h, $v);
151 278
… …
164 while ($h, $v) = each %hdr; 291 while ($h, $v) = each %hdr;
165 } 292 }
166 293
167 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 294 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80;
168 295
296 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
297
298 eval {
169 $self->map_uri; 299 $self->map_uri;
170 $self->respond; 300 $self->respond;
301 };
302
303 $self->eoconn;
304
305 die if $@ && !ref $@;
306
307 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1";
308
309 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]");
310 $fh->timeout($::PER_TIMEOUT);
171 #} 311 }
172} 312}
173 313
174# uri => path mapping 314# uri => path mapping
175sub map_uri { 315sub map_uri {
176 my $self = shift; 316 my $self = shift;
… …
188 328
189 $self->{name} = $uri; 329 $self->{name} = $uri;
190 330
191 # now do the path mapping 331 # now do the path mapping
192 $self->{path} = "$::DOCROOT/$host$uri"; 332 $self->{path} = "$::DOCROOT/$host$uri";
333
334 $self->access_check;
193} 335}
194 336
195sub server_address { 337sub server_address {
196 my $self = shift; 338 my $self = shift;
197 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname 339 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
… …
231 if (chdir $::DOCROOT) { 373 if (chdir $::DOCROOT) {
232 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 374 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
233 $ENV{HTTP_HOST} = $self->server_host; 375 $ENV{HTTP_HOST} = $self->server_host;
234 $ENV{HTTP_PORT} = $self->{server_host}; 376 $ENV{HTTP_PORT} = $self->{server_host};
235 $ENV{SCRIPT_NAME} = $self->{name}; 377 $ENV{SCRIPT_NAME} = $self->{name};
236 exec $::INDEXPROG; 378 exec $path;
237 } 379 }
238 Coro::State::_exit(0); 380 Coro::State::_exit(0);
239 } else { 381 } else {
240 } 382 }
241} 383}
… …
244 my $self = shift; 386 my $self = shift;
245 my $path = $self->{path}; 387 my $path = $self->{path};
246 388
247 stat $path 389 stat $path
248 or $self->err(404, "not found"); 390 or $self->err(404, "not found");
391
392 $self->{stat} = [stat _];
249 393
250 # idiotic netscape sends idiotic headers AGAIN 394 # idiotic netscape sends idiotic headers AGAIN
251 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 395 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
252 ? str2time $1 : 0; 396 ? str2time $1 : 0;
253 397
… …
256 if ($path !~ /\/$/) { 400 if ($path !~ /\/$/) {
257 # create a redirect to get the trailing "/" 401 # create a redirect to get the trailing "/"
258 my $host = $self->server_hostport; 402 my $host = $self->server_hostport;
259 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 403 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
260 } else { 404 } else {
261 $ims < (stat _)[9] 405 $ims < $self->{stat}[9]
262 or $self->err(304, "not modified"); 406 or $self->err(304, "not modified");
263 407
264 if ($self->{method} eq "GET") {
265 if (-r "$path/index.html") { 408 if (-r "$path/index.html") {
266 $self->{path} .= "/index.html"; 409 $self->{path} .= "/index.html";
267 $self->handle_file; 410 $self->handle_file;
268 } else { 411 } else {
269 $self->handle_dir; 412 $self->handle_dir;
270 }
271 } 413 }
272 } 414 }
273 } elsif (-f _ && -r _) { 415 } elsif (-f _ && -r _) {
274 -x _ and $self->err(403, "forbidden"); 416 -x _ and $self->err(403, "forbidden");
275 $self->handle_file; 417 $self->handle_file;
… …
278 } 420 }
279} 421}
280 422
281sub handle_dir { 423sub handle_dir {
282 my $self = shift; 424 my $self = shift;
283 $self->_cgi($::INDEXPROG); 425 my $idx = $self->diridx;
426
427 $self->response(200, "ok",
428 {
429 "Content-Type" => "text/html",
430 "Content-Length" => length $idx,
431 },
432 $idx);
284} 433}
285 434
286sub handle_file { 435sub handle_file {
287 my $self = shift; 436 my $self = shift;
288 my $length = -s _; 437 my $length = -s _;
… …
301 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 450 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
302 } else { 451 } else {
303 ($l, $h) = (0, $length - 1); 452 ($l, $h) = (0, $length - 1);
304 goto ignore; 453 goto ignore;
305 } 454 }
306 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 455 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
307 } 456 }
308 $hdr->{"Content-Range"} = "bytes */$length"; 457 $hdr->{"Content-Range"} = "bytes */$length";
458 $hdr->{"Content-Length"} = $length;
459 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
309 $self->err(416, "not satisfiable", $hdr); 460 $self->err(416, "not satisfiable", $hdr, "");
310 461
311satisfiable: 462satisfiable:
463 # check for segmented downloads
464 if ($l && $::NO_SEGMENTED) {
465 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
466 $self->err(400, "segmented downloads are not allowed",
467 { "Content-Type" => "text/html", Connection => "close" }, <<EOF);
468<html>
469<head>
470<title>Segmented downloads are not allowed</title>
471</head>
472<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
473
474<p>Segmented downloads are not allowed on this server. Please refer to the
475<a href="http://www.goof.com/pcg/marc/animefaq.html#segmented_downloads">FAQ</a>.</p>
476
477</body></html>
478EOF
479EOF
480 }
481 }
482
312 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 483 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
313 @code = (206, "partial content"); 484 @code = (206, "partial content");
314 $length = $h - $l + 1; 485 $length = $h - $l + 1;
315 486
316ignore: 487ignore:
317 } else { 488 } else {
318 ($l, $h) = (0, $length - 1); 489 ($l, $h) = (0, $length - 1);
319 } 490 }
320 491
321 if ($self->{path} =~ /\.html$/) { 492 $self->{path} =~ /\.([^.]+)$/;
322 $hdr->{"Content-Type"} = "text/html";
323 } else {
324 $hdr->{"Content-Type"} = "application/octet-stream"; 493 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
325 }
326
327 $hdr->{"Content-Length"} = $length; 494 $hdr->{"Content-Length"} = $length;
328 495
329 $self->print_response(@code, $hdr, ""); 496 $self->response(@code, $hdr, "");
330 497
331 if ($self->{method} eq "GET") { 498 if ($self->{method} eq "GET") {
332 my ($fh, $buf); 499 my ($fh, $buf, $r);
500 my $current = $Coro::current;
333 open $fh, "<", $self->{path} 501 open $fh, "<", $self->{path}
334 or die "$self->{path}: late open failure ($!)"; 502 or die "$self->{path}: late open failure ($!)";
335 503
336 if ($l) {
337 sysseek $fh, $l, 0
338 or die "$self->{path}: cannot seek to $l ($!)";
339 }
340
341 $h -= $l - 1; 504 $h -= $l - 1;
342 505
506 if (0) {
507 if ($l) {
508 sysseek $fh, $l, 0;
509 }
510 }
511
343 while ($h > 0) { 512 while ($h > 0) {
344 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 513 if (0) {
345 print {$self->{fh}} $buf 514 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
515 or last;
516 } else {
517 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
518 $buf, 0, sub {
519 $r = $_[0];
520 $current->ready;
521 });
522 &Coro::schedule;
523 last unless $r;
524 }
525 my $w = $self->{fh}->syswrite($buf)
346 or last; 526 or last;
527 $::written += $w;
528 $self->{written} += $w;
529 $l += $r;
347 } 530 }
348 } 531 }
349 532
350 close $fh; 533 close $fh;
351} 534}
535
5361;

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