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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.5 by root, Fri Aug 10 15:58:04 2001 UTC vs.
Revision 1.20 by root, Thu Aug 16 21:55:35 2001 UTC

… …
18 printf "---: $format\n", @_; 18 printf "---: $format\n", @_;
19} 19}
20 20
21my $connections = new Coro::Semaphore $MAX_CONNECTS; 21my $connections = new Coro::Semaphore $MAX_CONNECTS;
22 22
23my @fh; 23my @newcons;
24my @pool; 24my @pool;
25 25
26# one "execution thread" 26# one "execution thread"
27sub handler { 27sub handler {
28 while () { 28 while () {
29 my $fh = pop @fh; 29 my $new = pop @newcons;
30 if ($fh) { 30 if ($new) {
31 eval { 31 eval {
32 conn->new($fh)->handle; 32 conn->new(@$new)->handle;
33 }; 33 };
34 close $fh;
35 slog 1, "$@" if $@ && !ref $@; 34 slog 1, "$@" if $@ && !ref $@;
36 $connections->up; 35 $connections->up;
37 } else { 36 } else {
38 last if @pool >= $MAX_POOL; 37 last if @pool >= $MAX_POOL;
39 push @pool, $Coro::current; 38 push @pool, $Coro::current;
… …
44 43
45my $http_port = new Coro::Socket 44my $http_port = new Coro::Socket
46 LocalAddr => $SERVER_HOST, 45 LocalAddr => $SERVER_HOST,
47 LocalPort => $SERVER_PORT, 46 LocalPort => $SERVER_PORT,
48 ReuseAddr => 1, 47 ReuseAddr => 1,
49 Listen => 1, 48 Listen => 50,
50 or die "unable to start server"; 49 or die "unable to start server";
51 50
52push @listen_sockets, $http_port; 51push @listen_sockets, $http_port;
53 52
54# the "main thread" 53# the "main thread"
55async { 54async {
56 slog 1, "accepting connections"; 55 slog 1, "accepting connections";
57 while () { 56 while () {
58 $connections->down; 57 $connections->down;
59 push @fh, $http_port->accept; 58 push @newcons, [$http_port->accept];
60 #slog 3, "accepted @$connections ".scalar(@pool); 59 #slog 3, "accepted @$connections ".scalar(@pool);
61 $::NOW = time; 60 $::NOW = time;
62 if (@pool) { 61 if (@pool) {
63 (pop @pool)->ready; 62 (pop @pool)->ready;
64 } else { 63 } else {
… …
71package conn; 70package conn;
72 71
73use Socket; 72use Socket;
74use HTTP::Date; 73use HTTP::Date;
75use Convert::Scalar 'weaken'; 74use Convert::Scalar 'weaken';
75use Linux::AIO;
76
77Linux::AIO::min_parallel $::AIO_PARALLEL;
78
79Event->io(fd => Linux::AIO::poll_fileno,
80 poll => 'r', async => 1,
81 cb => \&Linux::AIO::poll_cb );
76 82
77our %conn; # $conn{ip}{fh} => connobj 83our %conn; # $conn{ip}{fh} => connobj
78our %blocked; 84our %blocked;
85our %mimetype;
86
87sub read_mimetypes {
88 local *M;
89 if (open M, "<mime_types") {
90 while (<M>) {
91 if (/^([^#]\S+)\t+(\S+)$/) {
92 $mimetype{lc $1} = $2;
93 }
94 }
95 } else {
96 print "cannot open mime_types\n";
97 }
98}
99
100read_mimetypes;
79 101
80sub new { 102sub new {
81 my $class = shift; 103 my $class = shift;
104 my $peername = shift;
82 my $fh = shift; 105 my $fh = shift;
83 my $self = bless { fh => $fh }, $class; 106 my $self = bless { fh => $fh }, $class;
84 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 107 my (undef, $iaddr) = unpack_sockaddr_in $peername
85 or $self->err(500, "unable to get peername"); 108 or $self->err(500, "unable to decode peername");
109
86 $self->{remote_addr} = inet_ntoa $iaddr; 110 $self->{remote_addr} = inet_ntoa $iaddr;
111 $self->{time} = $::NOW;
87 112
88 # enter ourselves into various lists 113 # enter ourselves into various lists
89 weaken ($conn{$self->{remote_addr}}{$self*1} = $self); 114 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
90 115
116 $::conns++;
117
91 $self; 118 $self;
92} 119}
93 120
94sub DESTROY { 121sub DESTROY {
95 my $self = shift; 122 my $self = shift;
123
124 $::conns--;
125
126 $self->eoconn;
96 delete $conn{$self->{remote_addr}}{$self*1}; 127 delete $conn{$self->{remote_addr}}{$self*1};
128}
129
130# end of connection
131sub eoconn {
97 delete $uri{$self->{uri}}{$self*1}; 132 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
98} 133}
99 134
100sub slog { 135sub slog {
101 my $self = shift; 136 my $self = shift;
102 main::slog($_[0], "$self->{remote_addr}> $_[1]"); 137 main::slog($_[0], "$self->{remote_addr}> $_[1]");
103} 138}
104 139
105sub response { 140sub response {
106 my ($self, $code, $msg, $hdr, $content) = @_; 141 my ($self, $code, $msg, $hdr, $content) = @_;
107 my $res = "HTTP/1.0 $code $msg\015\012"; 142 my $res = "HTTP/1.1 $code $msg\015\012";
108 143
109 $res .= "Connection: close\015\012"; 144 #$res .= "Connection: close\015\012";
110 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( 145 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :(
111 146
112 while (my ($h, $v) = each %$hdr) { 147 while (my ($h, $v) = each %$hdr) {
113 $res .= "$h: $v\015\012" 148 $res .= "$h: $v\015\012"
114 } 149 }
150 $res .= "\015\012";
115 151
116 $res .= "\015\012$content" if defined $content; 152 $res .= $content if defined $content and $self->{method} ne "HEAD";
117 153
118 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 154 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d#
119 155
156 $self->{written} +=
120 print {$self->{fh}} $res; 157 print {$self->{fh}} $res;
121} 158}
122 159
123sub err { 160sub err {
124 my $self = shift; 161 my $self = shift;
125 my ($code, $msg, $hdr, $content) = @_; 162 my ($code, $msg, $hdr, $content) = @_;
… …
127 unless (defined $content) { 164 unless (defined $content) {
128 $content = "$code $msg"; 165 $content = "$code $msg";
129 $hdr->{"Content-Type"} = "text/plain"; 166 $hdr->{"Content-Type"} = "text/plain";
130 $hdr->{"Content-Length"} = length $content; 167 $hdr->{"Content-Length"} = length $content;
131 } 168 }
169 $hdr->{"Connection"} = "close";
132 170
133 $self->response($code, $msg, $hdr, $content); 171 $self->response($code, $msg, $hdr, $content);
134 172
135 die bless {}, err::; 173 die bless {}, err::;
136} 174}
137 175
138sub err_blocked { 176sub err_blocked {
139 my $self = shift; 177 my $self = shift;
140 my $ip = $self->{remote_addr}; 178 my $ip = $self->{remote_addr};
141 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; 179 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
180
181 Coro::Event::do_timer(after => 20*rand);
182
142 $self->err(403, "too many connections", 183 $self->err(401, "too many connections",
143 { 184 {
144 "Content-Type" => "text/html", 185 "Content-Type" => "text/html",
145 "Retry-After" => $::BLOCKTIME 186 "Retry-After" => $::BLOCKTIME,
187 "Warning" => "Please do NOT retry, you have been blocked",
188 "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"",
146 }, 189 },
147 <<EOF); 190 <<EOF);
148<html><p> 191<html><p>
149You have been blocked because you opened too many connections. You 192You have been blocked because you opened too many connections. You
150may retry at</p> 193may retry at</p>
… …
159 202
160sub handle { 203sub handle {
161 my $self = shift; 204 my $self = shift;
162 my $fh = $self->{fh}; 205 my $fh = $self->{fh};
163 206
207 $fh->timeout($::REQ_TIMEOUT);
164 #while() { 208 while() {
209 $self->{reqs}++;
210
211 # read request and parse first line
212 my $req = $fh->readline("\015\012\015\012");
213
214 unless (defined $req) {
215 if (exists $self->{version}) {
216 last;
217 } else {
218 $self->err(408, "request timeout");
219 }
220 }
221
165 $self->{h} = {}; 222 $self->{h} = {};
166 223
167 # read request and parse first line
168 $fh->timeout($::REQ_TIMEOUT);
169 my $req = $fh->readline("\015\012\015\012");
170 $fh->timeout($::RES_TIMEOUT); 224 $fh->timeout($::RES_TIMEOUT);
171
172 defined $req or
173 $self->err(408, "request timeout");
174
175 my $ip = $self->{remote_addr}; 225 my $ip = $self->{remote_addr};
176 226
177 if ($blocked{$ip}) { 227 if ($blocked{$ip}) {
178 $self->err_blocked($blocked{$ip}) 228 $self->err_blocked($blocked{$ip})
179 if $blocked{$ip} > $::NOW; 229 if $blocked{$ip} > $::NOW;
180 230
181 delete $blocked{$ip}; 231 delete $blocked{$ip};
182 } 232 }
183 233
184 if (%{$conn{$ip}} > $::MAX_CONN_IP) { 234 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
185 $self->slog("blocked ip $ip"); 235 $self->slog(2, "blocked ip $ip");
186 $self->err_blocked; 236 $self->err_blocked;
187 } 237 }
188 238
189 $req =~ /^(?:\015\012)? 239 $req =~ /^(?:\015\012)?
190 (GET|HEAD) \040+ 240 (GET|HEAD) \040+
191 ([^\040]+) \040+ 241 ([^\040]+) \040+
192 HTTP\/([0-9]+\.[0-9]+) 242 HTTP\/([0-9]+\.[0-9]+)
193 \015\012/gx 243 \015\012/gx
194 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 244 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
195
196 $2 ne "1.0"
197 or $self->err(506, "http protocol version not supported");
198 245
199 $self->{method} = $1; 246 $self->{method} = $1;
200 $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");
201 252
202 # parse headers 253 # parse headers
203 { 254 {
204 my (%hdr, $h, $v); 255 my (%hdr, $h, $v);
205 256
… …
218 while ($h, $v) = each %hdr; 269 while ($h, $v) = each %hdr;
219 } 270 }
220 271
221 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 272 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80;
222 273
223 weaken ($uri{$self->{uri}}{$self*1} = $self); 274 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
224 275
225 $self->map_uri; 276 $self->map_uri;
226 $self->respond; 277 $self->respond;
278
279 $self->eoconn;
280
281 last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1";
282
283 $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]");
284 $fh->timeout($::PER_TIMEOUT);
227 #} 285 }
228} 286}
229 287
230# uri => path mapping 288# uri => path mapping
231sub map_uri { 289sub map_uri {
232 my $self = shift; 290 my $self = shift;
… …
244 302
245 $self->{name} = $uri; 303 $self->{name} = $uri;
246 304
247 # now do the path mapping 305 # now do the path mapping
248 $self->{path} = "$::DOCROOT/$host$uri"; 306 $self->{path} = "$::DOCROOT/$host$uri";
307
308 $self->access_check;
249} 309}
250 310
251sub server_address { 311sub server_address {
252 my $self = shift; 312 my $self = shift;
253 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname 313 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
… …
287 if (chdir $::DOCROOT) { 347 if (chdir $::DOCROOT) {
288 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 348 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
289 $ENV{HTTP_HOST} = $self->server_host; 349 $ENV{HTTP_HOST} = $self->server_host;
290 $ENV{HTTP_PORT} = $self->{server_host}; 350 $ENV{HTTP_PORT} = $self->{server_host};
291 $ENV{SCRIPT_NAME} = $self->{name}; 351 $ENV{SCRIPT_NAME} = $self->{name};
292 exec $::INDEXPROG; 352 exec $path;
293 } 353 }
294 Coro::State::_exit(0); 354 Coro::State::_exit(0);
295 } else { 355 } else {
296 } 356 }
297} 357}
… …
300 my $self = shift; 360 my $self = shift;
301 my $path = $self->{path}; 361 my $path = $self->{path};
302 362
303 stat $path 363 stat $path
304 or $self->err(404, "not found"); 364 or $self->err(404, "not found");
365
366 $self->{stat} = [stat _];
305 367
306 # idiotic netscape sends idiotic headers AGAIN 368 # idiotic netscape sends idiotic headers AGAIN
307 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 369 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
308 ? str2time $1 : 0; 370 ? str2time $1 : 0;
309 371
… …
312 if ($path !~ /\/$/) { 374 if ($path !~ /\/$/) {
313 # create a redirect to get the trailing "/" 375 # create a redirect to get the trailing "/"
314 my $host = $self->server_hostport; 376 my $host = $self->server_hostport;
315 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 377 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
316 } else { 378 } else {
317 $ims < (stat _)[9] 379 $ims < $self->{stat}[9]
318 or $self->err(304, "not modified"); 380 or $self->err(304, "not modified");
319 381
320 if ($self->{method} eq "GET") { 382 if ($self->{method} eq "GET") {
321 if (-r "$path/index.html") { 383 if (-r "$path/index.html") {
322 $self->{path} .= "/index.html"; 384 $self->{path} .= "/index.html";
… …
334 } 396 }
335} 397}
336 398
337sub handle_dir { 399sub handle_dir {
338 my $self = shift; 400 my $self = shift;
339 $self->_cgi($::INDEXPROG); 401 my $idx = $self->diridx;
402
403 $self->response(200, "ok",
404 {
405 "Content-Type" => "text/html",
406 "Content-Length" => length $idx,
407 },
408 $idx);
340} 409}
341 410
342sub handle_file { 411sub handle_file {
343 my $self = shift; 412 my $self = shift;
344 my $length = -s _; 413 my $length = -s _;
… …
360 goto ignore; 429 goto ignore;
361 } 430 }
362 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 431 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l;
363 } 432 }
364 $hdr->{"Content-Range"} = "bytes */$length"; 433 $hdr->{"Content-Range"} = "bytes */$length";
434 $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")");
365 $self->err(416, "not satisfiable", $hdr); 435 $self->err(416, "not satisfiable", $hdr);
366 436
367satisfiable: 437satisfiable:
368 # check for segmented downloads 438 # check for segmented downloads
369 if ($l && $NO_SEGMENTED) { 439 if ($l && $::NO_SEGMENTED) {
370 if (%{$uri{$self->{uri}}} > 1) { 440 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
371 $self->slog("segmented download refused\n"); 441 Coro::Event::do_timer(after => 15);
442
372 $self->err(400, "segmented downloads are not allowed"); 443 $self->err(400, "segmented downloads are not allowed");
373 } 444 }
374 } 445 }
375 446
376 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 447 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
… …
380ignore: 451ignore:
381 } else { 452 } else {
382 ($l, $h) = (0, $length - 1); 453 ($l, $h) = (0, $length - 1);
383 } 454 }
384 455
385 if ($self->{path} =~ /\.html$/) { 456 $self->{path} =~ /\.([^.]+)$/;
386 $hdr->{"Content-Type"} = "text/html";
387 } else {
388 $hdr->{"Content-Type"} = "application/octet-stream"; 457 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
389 }
390
391 $hdr->{"Content-Length"} = $length; 458 $hdr->{"Content-Length"} = $length;
392 459
393 $self->response(@code, $hdr, ""); 460 $self->response(@code, $hdr, "");
394 461
395 if ($self->{method} eq "GET") { 462 if ($self->{method} eq "GET") {
396 my ($fh, $buf); 463 my ($fh, $buf, $r);
464 my $current = $Coro::current;
397 open $fh, "<", $self->{path} 465 open $fh, "<", $self->{path}
398 or die "$self->{path}: late open failure ($!)"; 466 or die "$self->{path}: late open failure ($!)";
399 467
400 if ($l) {
401 sysseek $fh, $l, 0
402 or die "$self->{path}: cannot seek to $l ($!)";
403 }
404
405 $h -= $l - 1; 468 $h -= $l - 1;
406 469
470 if (0) {
471 if ($l) {
472 sysseek $fh, $l, 0;
473 }
474 }
475
407 while ($h > 0) { 476 while ($h > 0) {
477 if (0) {
408 $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; 478 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
479 or last;
480 } else {
481 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
482 $buf, 0, sub {
483 $r = $_[0];
484 $current->ready;
485 });
486 &Coro::schedule;
487 last unless $r;
488 }
409 $self->{fh}->syswrite($buf) 489 my $w = $self->{fh}->syswrite($buf)
410 or last; 490 or last;
491 $::written += $w;
492 $self->{written} += $w;
493 $l += $r;
411 } 494 }
412 } 495 }
413 496
414 close $fh; 497 close $fh;
415} 498}

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