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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.9 by root, Sat Aug 11 12:49:21 2001 UTC vs.
Revision 1.28 by root, Mon Aug 20 16:58:19 2001 UTC

9# at least on my machine, this thingy serves files 9# at least on my machine, this thingy serves files
10# quite a bit faster than apache, ;) 10# quite a bit faster than apache, ;)
11# and quite a bit slower than thttpd :( 11# and quite a bit slower than thttpd :(
12 12
13$SIG{PIPE} = 'IGNORE'; 13$SIG{PIPE} = 'IGNORE';
14 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
15sub slog { 24sub slog {
16 my $level = shift; 25 my $level = shift;
17 my $format = shift; 26 my $format = shift;
18 printf "---: $format\n", @_; 27 printf "---: $format\n", @_;
19} 28}
43 52
44my $http_port = new Coro::Socket 53my $http_port = new Coro::Socket
45 LocalAddr => $SERVER_HOST, 54 LocalAddr => $SERVER_HOST,
46 LocalPort => $SERVER_PORT, 55 LocalPort => $SERVER_PORT,
47 ReuseAddr => 1, 56 ReuseAddr => 1,
48 Listen => 1, 57 Listen => 50,
49 or die "unable to start server"; 58 or die "unable to start server";
50 59
51push @listen_sockets, $http_port; 60push @listen_sockets, $http_port;
52 61
53# the "main thread" 62# the "main thread"
70package conn; 79package conn;
71 80
72use Socket; 81use Socket;
73use HTTP::Date; 82use HTTP::Date;
74use Convert::Scalar 'weaken'; 83use Convert::Scalar 'weaken';
84use Linux::AIO;
75 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
76our %conn; # $conn{ip}{fh} => connobj 92our %conn; # $conn{ip}{self} => connobj
93our %uri; # $uri{ip}{uri}{self}
77our %blocked; 94our %blocked;
78our %mimetype; 95our %mimetype;
79 96
80sub read_mimetypes { 97sub read_mimetypes {
81 local *M; 98 local *M;
82 if (open M, "<mimetypes") { 99 if (open M, "<mime_types") {
83 while (<M>) { 100 while (<M>) {
84 if (/^([^#]\S+)\t+(\S+)$/) { 101 if (/^([^#]\S+)\t+(\S+)$/) {
85 $mimetype{lc $1} = $2; 102 $mimetype{lc $1} = $2;
86 } 103 }
87 } 104 }
88 } else { 105 } else {
89 $self->slog(1, "cannot open mimetypes\n"); 106 print "cannot open mime_types\n";
90 } 107 }
91} 108}
109
110read_mimetypes;
92 111
93sub new { 112sub new {
94 my $class = shift; 113 my $class = shift;
95 my $peername = shift; 114 my $peername = shift;
96 my $fh = shift; 115 my $fh = shift;
97 my $self = bless { fh => $fh }, $class; 116 my $self = bless { fh => $fh }, $class;
98 my (undef, $iaddr) = unpack_sockaddr_in $peername 117 my (undef, $iaddr) = unpack_sockaddr_in $peername
99 or $self->err(500, "unable to decode peername"); 118 or $self->err(500, "unable to decode peername");
100 119
101 $self->{remote_addr} = inet_ntoa $iaddr; 120 $self->{remote_addr} = inet_ntoa $iaddr;
121 $self->{time} = $::NOW;
102 122
103 # enter ourselves into various lists 123 # enter ourselves into various lists
104 weaken ($conn{$self->{remote_addr}}{$self*1} = $self); 124 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
105 125
126 $::conns++;
127
106 $self; 128 $self;
107} 129}
108 130
109sub DESTROY { 131sub DESTROY {
110 my $self = shift; 132 my $self = shift;
133
134 $::conns--;
135
136 $self->eoconn;
111 delete $conn{$self->{remote_addr}}{$self*1}; 137 delete $conn{$self->{remote_addr}}{$self*1};
138}
139
140# end of connection
141sub eoconn {
142 my $self = shift;
112 delete $uri{$self->{uri}}{$self*1}; 143 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
113} 144}
114 145
115sub slog { 146sub slog {
116 my $self = shift; 147 my $self = shift;
117 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 148 main::slog($_[0], "$self->{remote_addr}> $_[1]");
118} 149}
119 150
120sub response { 151sub response {
121 my ($self, $code, $msg, $hdr, $content) = @_; 152 my ($self, $code, $msg, $hdr, $content) = @_;
122 my $res = "HTTP/1.0 $code $msg\015\012"; 153 my $res = "HTTP/1.1 $code $msg\015\012";
123 154
124 $res .= "Connection: close\015\012"; 155 $self->{h}{connection} ||= $hdr->{Connection};
156
125 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 157 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :(
126 158
127 while (my ($h, $v) = each %$hdr) { 159 while (my ($h, $v) = each %$hdr) {
128 $res .= "$h: $v\015\012" 160 $res .= "$h: $v\015\012"
129 } 161 }
162 $res .= "\015\012";
130 163
131 $res .= "\015\012$content" if defined $content; 164 $res .= $content if defined $content and $self->{method} ne "HEAD";
132 165
133 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 166 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
134 167
168 print $accesslog $log if $accesslog;
169 print STDERR $log;
170
171 $self->{written} +=
135 print {$self->{fh}} $res; 172 print {$self->{fh}} $res;
136} 173}
137 174
138sub err { 175sub err {
139 my $self = shift; 176 my $self = shift;
140 my ($code, $msg, $hdr, $content) = @_; 177 my ($code, $msg, $hdr, $content) = @_;
142 unless (defined $content) { 179 unless (defined $content) {
143 $content = "$code $msg"; 180 $content = "$code $msg";
144 $hdr->{"Content-Type"} = "text/plain"; 181 $hdr->{"Content-Type"} = "text/plain";
145 $hdr->{"Content-Length"} = length $content; 182 $hdr->{"Content-Length"} = length $content;
146 } 183 }
184 $hdr->{"Connection"} = "close";
147 185
148 $self->response($code, $msg, $hdr, $content); 186 $self->response($code, $msg, $hdr, $content);
149 187
150 die bless {}, err::; 188 die bless {}, err::;
151} 189}
152 190
153sub err_blocked { 191sub err_blocked {
154 my $self = shift; 192 my $self = shift;
155 my $ip = $self->{remote_addr}; 193 my $ip = $self->{remote_addr};
156 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; 194 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
195
196 Coro::Event::do_timer(after => 20*rand);
197
157 $self->err(403, "too many connections", 198 $self->err(401, "too many connections",
158 { 199 {
159 "Content-Type" => "text/html", 200 "Content-Type" => "text/html",
160 "Retry-After" => $::BLOCKTIME 201 "Retry-After" => $::BLOCKTIME,
202 "Warning" => "Please do NOT retry, you have been blocked",
203 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
204 "Connection" => "close",
161 }, 205 },
162 <<EOF); 206 <<EOF);
163<html><p> 207<html>
208<head>
209<title>Too many connections</title>
210</head>
211<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
212
164You have been blocked because you opened too many connections. You 213<p>You have been blocked because you opened too many connections. You
165may retry at</p> 214may retry at</p>
166 215
167 <p><blockquote>$time.</blockquote></p> 216 <p><blockquote>$time.</blockquote></p>
168 217
169<p>Until then, each new access will renew the block. You might want to have a 218<p>Until then, each new access will renew the block. You might want to have a
170look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p> 219look at the <a href="http://www.goof.com/pcg/marc/animefaq.html#connectionlimit">FAQ</a>.</p>
171</html> 220
221</body></html>
172EOF 222EOF
173} 223}
174 224
175sub handle { 225sub handle {
176 my $self = shift; 226 my $self = shift;
177 my $fh = $self->{fh}; 227 my $fh = $self->{fh};
178 228
229 $fh->timeout($::REQ_TIMEOUT);
179 #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
180 $self->{h} = {}; 244 $self->{h} = {};
181 245
182 # read request and parse first line
183 $fh->timeout($::REQ_TIMEOUT);
184 my $req = $fh->readline("\015\012\015\012");
185 $fh->timeout($::RES_TIMEOUT); 246 $fh->timeout($::RES_TIMEOUT);
186
187 defined $req or
188 $self->err(408, "request timeout");
189
190 my $ip = $self->{remote_addr}; 247 my $ip = $self->{remote_addr};
191 248
192 if ($blocked{$ip}) { 249 if ($blocked{$ip}) {
193 $self->err_blocked($blocked{$ip}) 250 $self->err_blocked($blocked{$ip})
194 if $blocked{$ip} > $::NOW; 251 if $blocked{$ip} > $::NOW;
195 252
196 delete $blocked{$ip}; 253 delete $blocked{$ip};
197 } 254 }
198 255
199 if (%{$conn{$ip}} > $::MAX_CONN_IP) { 256 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
200 $self->slog("blocked ip $ip"); 257 $self->slog(2, "blocked ip $ip");
201 $self->err_blocked; 258 $self->err_blocked;
202 } 259 }
203 260
204 $req =~ /^(?:\015\012)? 261 $req =~ /^(?:\015\012)?
205 (GET|HEAD) \040+ 262 (GET|HEAD) \040+
206 ([^\040]+) \040+ 263 ([^\040]+) \040+
207 HTTP\/([0-9]+\.[0-9]+) 264 HTTP\/([0-9]+\.[0-9]+)
208 \015\012/gx 265 \015\012/gx
209 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 266 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
210
211 $2 ne "1.0"
212 or $self->err(506, "http protocol version not supported");
213 267
214 $self->{method} = $1; 268 $self->{method} = $1;
215 $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");
216 274
217 # parse headers 275 # parse headers
218 { 276 {
219 my (%hdr, $h, $v); 277 my (%hdr, $h, $v);
220 278
233 while ($h, $v) = each %hdr; 291 while ($h, $v) = each %hdr;
234 } 292 }
235 293
236 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 294 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80;
237 295
238 weaken ($uri{$self->{uri}}{$self*1} = $self); 296 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
239 297
298 eval {
240 $self->map_uri; 299 $self->map_uri;
241 $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);
242 #} 311 }
243} 312}
244 313
245# uri => path mapping 314# uri => path mapping
246sub map_uri { 315sub map_uri {
247 my $self = shift; 316 my $self = shift;
304 if (chdir $::DOCROOT) { 373 if (chdir $::DOCROOT) {
305 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 374 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
306 $ENV{HTTP_HOST} = $self->server_host; 375 $ENV{HTTP_HOST} = $self->server_host;
307 $ENV{HTTP_PORT} = $self->{server_host}; 376 $ENV{HTTP_PORT} = $self->{server_host};
308 $ENV{SCRIPT_NAME} = $self->{name}; 377 $ENV{SCRIPT_NAME} = $self->{name};
309 exec $::INDEXPROG; 378 exec $path;
310 } 379 }
311 Coro::State::_exit(0); 380 Coro::State::_exit(0);
312 } else { 381 } else {
313 } 382 }
314} 383}
317 my $self = shift; 386 my $self = shift;
318 my $path = $self->{path}; 387 my $path = $self->{path};
319 388
320 stat $path 389 stat $path
321 or $self->err(404, "not found"); 390 or $self->err(404, "not found");
391
392 $self->{stat} = [stat _];
322 393
323 # idiotic netscape sends idiotic headers AGAIN 394 # idiotic netscape sends idiotic headers AGAIN
324 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 395 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
325 ? str2time $1 : 0; 396 ? str2time $1 : 0;
326 397
329 if ($path !~ /\/$/) { 400 if ($path !~ /\/$/) {
330 # create a redirect to get the trailing "/" 401 # create a redirect to get the trailing "/"
331 my $host = $self->server_hostport; 402 my $host = $self->server_hostport;
332 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 403 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
333 } else { 404 } else {
334 $ims < (stat _)[9] 405 $ims < $self->{stat}[9]
335 or $self->err(304, "not modified"); 406 or $self->err(304, "not modified");
336 407
337 if ($self->{method} eq "GET") {
338 if (-r "$path/index.html") { 408 if (-r "$path/index.html") {
339 $self->{path} .= "/index.html"; 409 $self->{path} .= "/index.html";
340 $self->handle_file; 410 $self->handle_file;
341 } else { 411 } else {
342 $self->handle_dir; 412 $self->handle_dir;
343 }
344 } 413 }
345 } 414 }
346 } elsif (-f _ && -r _) { 415 } elsif (-f _ && -r _) {
347 -x _ and $self->err(403, "forbidden"); 416 -x _ and $self->err(403, "forbidden");
348 $self->handle_file; 417 $self->handle_file;
351 } 420 }
352} 421}
353 422
354sub handle_dir { 423sub handle_dir {
355 my $self = shift; 424 my $self = shift;
356 $self->_cgi($::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);
357} 433}
358 434
359sub handle_file { 435sub handle_file {
360 my $self = shift; 436 my $self = shift;
361 my $length = -s _; 437 my $length = -s _;
374 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 450 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
375 } else { 451 } else {
376 ($l, $h) = (0, $length - 1); 452 ($l, $h) = (0, $length - 1);
377 goto ignore; 453 goto ignore;
378 } 454 }
379 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 455 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
380 } 456 }
381 $hdr->{"Content-Range"} = "bytes */$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"}.")");
382 $self->err(416, "not satisfiable", $hdr); 460 $self->err(416, "not satisfiable", $hdr, "");
383 461
384satisfiable: 462satisfiable:
385 # check for segmented downloads 463 # check for segmented downloads
386 if ($l && $NO_SEGMENTED) { 464 if ($l && $::NO_SEGMENTED) {
387 if (%{$uri{$self->{uri}}} > 1) { 465 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
388 $self->slog("segmented download refused\n");
389 $self->err(400, "segmented downloads are not allowed"); 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
390 } 480 }
391 } 481 }
392 482
393 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 483 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
394 @code = (206, "partial content"); 484 @code = (206, "partial content");
404 $hdr->{"Content-Length"} = $length; 494 $hdr->{"Content-Length"} = $length;
405 495
406 $self->response(@code, $hdr, ""); 496 $self->response(@code, $hdr, "");
407 497
408 if ($self->{method} eq "GET") { 498 if ($self->{method} eq "GET") {
409 my ($fh, $buf); 499 my ($fh, $buf, $r);
500 my $current = $Coro::current;
410 open $fh, "<", $self->{path} 501 open $fh, "<", $self->{path}
411 or die "$self->{path}: late open failure ($!)"; 502 or die "$self->{path}: late open failure ($!)";
412 503
413 if ($l) {
414 sysseek $fh, $l, 0
415 or die "$self->{path}: cannot seek to $l ($!)";
416 }
417
418 $h -= $l - 1; 504 $h -= $l - 1;
419 505
506 if (0) {
507 if ($l) {
508 sysseek $fh, $l, 0;
509 }
510 }
511
420 while ($h > 0) { 512 while ($h > 0) {
513 if (0) {
421 $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; 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 }
422 $self->{fh}->syswrite($buf) 525 my $w = $self->{fh}->syswrite($buf)
423 or last; 526 or last;
527 $::written += $w;
528 $self->{written} += $w;
529 $l += $r;
424 } 530 }
425 } 531 }
426 532
427 close $fh; 533 close $fh;
428} 534}

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