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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.76 by root, Wed Jul 13 13:58:51 2005 UTC vs.
Revision 1.89 by root, Sun Jan 24 20:44:34 2010 UTC

1use Coro; 1use Coro;
2use Coro::Semaphore; 2use Coro::Semaphore;
3use Coro::Event; 3use Coro::EV;
4use Coro::Socket; 4use Coro::Socket;
5use Coro::Signal; 5use Coro::Signal;
6use Coro::AIO ();
6 7
7use HTTP::Date; 8use HTTP::Date;
8use POSIX (); 9use POSIX ();
9 10
10use Compress::Zlib (); 11use Compress::Zlib ();
22our $errorlog; 23our $errorlog;
23 24
24our $NOW; 25our $NOW;
25our $HTTP_NOW; 26our $HTTP_NOW;
26 27
27Event->timer(interval => 1, hard => 1, cb => sub { 28our $ERROR_LOG;
29our $ACCESS_LOG;
30
31our $update_time = EV::periodic 0, 1, undef, sub {
28 $NOW = time; 32 $NOW = time;
29 $HTTP_NOW = time2str $NOW; 33 $HTTP_NOW = time2str $NOW;
30})->now; 34};
35$update_time->invoke;
31 36
32if ($ERROR_LOG) { 37if ($ERROR_LOG) {
33 use IO::Handle; 38 use IO::Handle;
34 open $errorlog, ">>$ERROR_LOG" 39 open $errorlog, ">>$ERROR_LOG"
35 or die "$ERROR_LOG: $!"; 40 or die "$ERROR_LOG: $!";
70 $queue_file->force_wake_next; 75 $queue_file->force_wake_next;
71 slog 1, "forced filetransfer due to unused bandwidth"; 76 slog 1, "forced filetransfer due to unused bandwidth";
72 } 77 }
73} 78}
74 79
75my @newcons;
76my @pool;
77
78# one "execution thread"
79sub handler {
80 while () {
81 if (@newcons) {
82 eval {
83 conn->new(@{pop @newcons})->handle;
84 };
85 slog 1, "$@" if $@ && !ref $@;
86
87 $httpevent->broadcast; # only for testing, but doesn't matter much
88
89 $connections->up;
90 } else {
91 last if @pool >= $MAX_POOL;
92 push @pool, $Coro::current;
93 schedule;
94 }
95 }
96}
97
98sub listen_on { 80sub listen_on {
99 my $listen = $_[0]; 81 my $listen = $_[0];
100 82
101 push @listen_sockets, $listen; 83 push @listen_sockets, $listen;
102 84
103 # the "main thread" 85 # the "main thread"
104 async { 86 async {
105 slog 1, "accepting connections"; 87 slog 1, "accepting connections";
106 while () { 88 while () {
107 $connections->down; 89 $connections->down;
108 push @newcons, [$listen->accept]; 90 my @conn = $listen->accept;
109 #slog 3, "accepted @$connections ".scalar(@pool); 91 #slog 3, "accepted @$connections ".scalar(@pool);
110 if (@pool) { 92
111 (pop @pool)->ready; 93 async_pool {
112 } else { 94 eval {
113 async \&handler; 95 conn->new (@conn)->handle;
96 };
97 slog 1, "$@" if $@ && !ref $@;
98
99 $httpevent->broadcast; # only for testing, but doesn't matter much
100
101 $connections->up;
114 } 102 }
115 } 103 }
116 }; 104 };
117} 105}
118 106
119my $http_port = new Coro::Socket 107my $http_port = new Coro::Socket
120 LocalAddr => $SERVER_HOST, 108 LocalAddr => $SERVER_HOST,
121 LocalPort => $SERVER_PORT, 109 LocalPort => $SERVER_PORT,
122 ReuseAddr => 1, 110 ReuseAddr => 1,
123 Listen => 50, 111 Listen => 50,
124 or die "unable to start server"; 112 or die "unable to start server";
125 113
126listen_on $http_port; 114listen_on $http_port;
127 115
128if ($SERVER_PORT2) { 116if ($SERVER_PORT2) {
129 my $http_port = new Coro::Socket 117 my $http_port = new Coro::Socket
130 LocalAddr => $SERVER_HOST, 118 LocalAddr => $SERVER_HOST,
131 LocalPort => $SERVER_PORT2, 119 LocalPort => $SERVER_PORT2,
132 ReuseAddr => 1, 120 ReuseAddr => 1,
133 Listen => 50, 121 Listen => 50,
134 or die "unable to start server"; 122 or die "unable to start server";
135 123
136 listen_on $http_port; 124 listen_on $http_port;
137} 125}
138 126
139package conn; 127package conn;
128
129use strict;
130use bytes;
140 131
141use Socket; 132use Socket;
142use HTTP::Date; 133use HTTP::Date;
143use Convert::Scalar 'weaken'; 134use Convert::Scalar 'weaken';
144use Linux::AIO; 135use IO::AIO;
145 136
146Linux::AIO::min_parallel $::AIO_PARALLEL; 137IO::AIO::min_parallel $::AIO_PARALLEL;
147 138
148Event->io(fd => Linux::AIO::poll_fileno, 139our $AIO_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
149 poll => 'r', async => 1,
150 cb => \&Linux::AIO::poll_cb);
151 140
152our %conn; # $conn{ip}{self} => connobj 141our %conn; # $conn{ip}{self} => connobj
153our %uri; # $uri{ip}{uri}{self} 142our %uri; # $uri{ip}{uri}{self}
154our %blocked; 143our %blocked;
155our %mimetype; 144our %mimetype;
156 145
157sub read_mimetypes { 146sub read_mimetypes {
158 local *M;
159 if (open M, "<mime_types") { 147 if (open my $fh, "<mime_types") {
160 while (<M>) { 148 while (<$fh>) {
161 if (/^([^#]\S+)\t+(\S+)$/) { 149 if (/^([^#]\S+)\t+(\S+)$/) {
162 $mimetype{lc $1} = $2; 150 $mimetype{lc $1} = $2;
163 } 151 }
164 } 152 }
165 } else { 153 } else {
173 my $class = shift; 161 my $class = shift;
174 my $fh = shift; 162 my $fh = shift;
175 my $peername = shift; 163 my $peername = shift;
176 my $self = bless { fh => $fh }, $class; 164 my $self = bless { fh => $fh }, $class;
177 my (undef, $iaddr) = unpack_sockaddr_in $peername 165 my (undef, $iaddr) = unpack_sockaddr_in $peername
178 or $self->err(500, "unable to decode peername"); 166 or $self->err (500, "unable to decode peername");
179 167
180 $self->{remote_addr} = 168 $self->{remote_addr} =
181 $self->{remote_id} = inet_ntoa $iaddr; 169 $self->{remote_id} = inet_ntoa $iaddr;
182 170
183 $self->{time} = $::NOW; 171 $self->{time} = $::NOW;
184 172
185 weaken ($Coro::current->{conn} = $self); 173 weaken ($Coro::current->{conn} = $self);
186 174
187 $::conns++; 175 ++$::conns;
188 $::maxconns = $::conns if $::conns > $::maxconns; 176 $::maxconns = $::conns if $::conns > $::maxconns;
189 177
190 $self; 178 $self
191} 179}
192 180
193sub DESTROY { 181sub DESTROY {
194 #my $self = shift; 182 my $self = shift;
183
195 $::conns--; 184 --$::conns;
196} 185}
197 186
198sub prune_cache { 187sub prune_cache {
199 my $hash = $_[0]; 188 my $hash = $_[0];
200 189
201 for (keys %$hash) { 190 for (keys %$hash) {
202 if (ref $hash->{$_} eq HASH::) { 191 if (ref $hash->{$_} eq HASH::) {
203 prune_cache($hash->{$_}); 192 prune_cache($hash->{$_});
204 unless (scalar keys %{$hash->{$_}}) { 193 unless (scalar keys %{$hash->{$_}}) {
205 delete $hash->{$_}; 194 delete $hash->{$_};
206 $d2++;
207 } 195 }
208 } 196 }
209 } 197 }
210} 198}
211 199
216 for (keys %blocked) { 204 for (keys %blocked) {
217 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW; 205 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
218 } 206 }
219} 207}
220 208
221Event->timer(interval => 60, cb => \&prune_caches); 209our $PRUNE_WATCHER = EV::timer 60, 60, \&prune_caches;
222 210
223sub slog { 211sub slog {
224 my $self = shift; 212 my $self = shift;
225 main::slog($_[0], "$self->{remote_id}> $_[1]"); 213 main::slog($_[0], "$self->{remote_id}> $_[1]");
226} 214}
287 $hdr->{"Content-Type"} = "text/plain"; 275 $hdr->{"Content-Type"} = "text/plain";
288 $hdr->{"Content-Length"} = length $content; 276 $hdr->{"Content-Length"} = length $content;
289 } 277 }
290 $hdr->{"Connection"} = "close"; 278 $hdr->{"Connection"} = "close";
291 279
292 $self->response($code, $msg, $hdr, $content); 280 $self->response ($code, $msg, $hdr, $content);
293 281
294 die bless {}, err::; 282 die bless {}, err::
295} 283}
296 284
297sub handle { 285sub handle {
298 my $self = shift; 286 my $self = shift;
299 my $fh = $self->{fh}; 287 my $fh = $self->{fh};
300 288
301 my $host; 289 my $host;
302 290
303 $fh->timeout($::REQ_TIMEOUT); 291 $fh->timeout($::REQ_TIMEOUT);
304 while() { 292 while () {
305 $self->{reqs}++; 293 $self->{reqs}++;
306 294
307 # read request and parse first line 295 # read request and parse first line
308 my $req = $fh->readline("\015\012\015\012"); 296 my $req = $fh->readline("\015\012\015\012");
309 297
418# uri => path mapping 406# uri => path mapping
419sub map_uri { 407sub map_uri {
420 my $self = shift; 408 my $self = shift;
421 my $host = $self->{server_name}; 409 my $host = $self->{server_name};
422 my $uri = $self->{uri}; 410 my $uri = $self->{uri};
411
412 $host =~ /[\/\\]/
413 and $self->err(400, "bad request");
423 414
424 # some massaging, also makes it more secure 415 # some massaging, also makes it more secure
425 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 416 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
426 $uri =~ s%//+%/%g; 417 $uri =~ s%//+%/%g;
427 $uri =~ s%/\.(?=/|$)%%g; 418 $uri =~ s%/\.(?=/|$)%%g;
471 462
472 if ($self->{name} =~ s%^/internal/([^/]+)%%) { 463 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
473 if ($::internal{$1}) { 464 if ($::internal{$1}) {
474 $::internal{$1}->($self); 465 $::internal{$1}->($self);
475 } else { 466 } else {
476 $self->err(404, "not found"); 467 $self->err (404, "not found");
477 } 468 }
478 } else { 469 } else {
479 470
480 stat $path 471 Coro::AIO::aio_stat $path
481 or $self->err(404, "not found"); 472 and $self->err (404, "not found");
482 473
483 $self->{stat} = [stat _]; 474 $self->{stat} = [stat _];
484 475
485 # idiotic netscape sends idiotic headers AGAIN 476 # idiotic netscape sends idiotic headers AGAIN
486 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 477 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
489 if (-d _ && -r _) { 480 if (-d _ && -r _) {
490 # directory 481 # directory
491 if ($path !~ /\/$/) { 482 if ($path !~ /\/$/) {
492 # create a redirect to get the trailing "/" 483 # create a redirect to get the trailing "/"
493 # we don't try to avoid the :80 484 # we don't try to avoid the :80
494 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); 485 $self->err (301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
495 } else { 486 } else {
496 $ims < $self->{stat}[9] 487 $ims < $self->{stat}[9]
497 or $self->err(304, "not modified"); 488 or $self->err (304, "not modified");
498 489
499 if (-r "$path/index.html") { 490 if (-r "$path/index.html") {
500 # replace directory "size" by index.html filesize 491 # replace directory "size" by index.html filesize
501 $self->{stat} = [stat ($self->{path} .= "/index.html")]; 492 $self->{stat} = [stat ($self->{path} .= "/index.html")];
502 $self->handle_file($queue_index, $tbf_top); 493 $self->handle_file ($queue_index, $tbf_top);
503 } else { 494 } else {
504 $self->handle_dir; 495 $self->handle_dir;
505 } 496 }
506 } 497 }
507 } elsif (-f _ && -r _) { 498 } elsif (-f _ && -r _) {
508 -x _ and $self->err(403, "forbidden"); 499 -x _ and $self->err (403, "forbidden");
509 500
510 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { 501 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
511 my $timeout = $::NOW + 10; 502 my $timeout = $::NOW + 10;
512 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { 503 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
513 if ($timeout < $::NOW) { 504 if ($timeout < $::NOW) {
516 $httpevent->wait; 507 $httpevent->wait;
517 } 508 }
518 } 509 }
519 } 510 }
520 511
521 $self->handle_file($queue_file, $tbf_top); 512 $self->handle_file ($queue_file, $tbf_top);
522 } else { 513 } else {
523 $self->err(404, "not found"); 514 $self->err (404, "not found");
524 } 515 }
525 } 516 }
526} 517}
527 518
528sub handle_dir { 519sub handle_dir {
529 my $self = shift; 520 my $self = shift;
530 my $idx = $self->diridx; 521 my $idx = $self->diridx;
531 522
532 $self->response(200, "ok", 523 $self->response (200, "ok",
533 { 524 {
534 "Content-Type" => "text/html; charset=utf-8", 525 "Content-Type" => "text/html; charset=utf-8",
535 "Content-Length" => length $idx, 526 "Content-Length" => length $idx,
536 "Last-Modified" => time2str ($self->{stat}[9]), 527 "Last-Modified" => time2str ($self->{stat}[9]),
537 }, 528 },
547 }; 538 };
548 539
549 my @code = (200, "ok"); 540 my @code = (200, "ok");
550 my ($l, $h); 541 my ($l, $h);
551 542
552 if ($self->{h}{range} =~ /^bytes=(.*)$/) { 543 if ($self->{h}{range} =~ /^bytes=(.*)$/i) {
553 for (split /,/, $1) { 544 for (split /,/, $1) {
554 if (/^-(\d+)$/) { 545 if (/^-(\d+)$/) {
555 ($l, $h) = ($length - $1, $length - 1); 546 ($l, $h) = ($length - $1, $length - 1);
556 } elsif (/^(\d+)-(\d*)$/) { 547 } elsif (/^(\d+)-(\d*)$/) {
557 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 548 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
561 } 552 }
562 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 553 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
563 } 554 }
564 $hdr->{"Content-Range"} = "bytes */$length"; 555 $hdr->{"Content-Range"} = "bytes */$length";
565 $hdr->{"Content-Length"} = $length; 556 $hdr->{"Content-Length"} = $length;
566 $self->err(416, "not satisfiable", $hdr, ""); 557 $self->err (416, "not satisfiable", $hdr, "");
567 558
568satisfiable: 559satisfiable:
569 # check for segmented downloads 560 # check for segmented downloads
570 if ($l && $::NO_SEGMENTED) { 561 if ($l && $::NO_SEGMENTED) {
571 my $timeout = $::NOW + 15; 562 my $timeout = $::NOW + 15;
572 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { 563 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
573 if ($timeout <= $::NOW) { 564 if ($timeout <= $::NOW) {
574 $self->block($::BLOCKTIME, "segmented downloads are forbidden"); 565 $self->block ($::BLOCKTIME, "segmented downloads are forbidden");
575 #$self->err_segmented_download; 566 #$self->err_segmented_download;
576 } else { 567 } else {
577 $httpevent->wait; 568 $httpevent->wait;
578 } 569 }
579 } 570 }
590 581
591 $self->{path} =~ /\.([^.]+)$/; 582 $self->{path} =~ /\.([^.]+)$/;
592 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; 583 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
593 $hdr->{"Content-Length"} = $length; 584 $hdr->{"Content-Length"} = $length;
594 585
595 $self->response(@code, $hdr, ""); 586 $self->response (@code, $hdr, "");
596 587
597 if ($self->{method} eq "GET") { 588 if ($self->{method} eq "GET") {
598 $self->{time} = $::NOW; 589 $self->{time} = $::NOW;
599 $self->{written} = 0; 590 $self->{written} = 0;
600 591
601 my $current = $Coro::current;
602
603 my ($fh, $buf, $r);
604
605 open $fh, "<", $self->{path} 592 open my $fh, "<", $self->{path}
606 or die "$self->{path}: late open failure ($!)"; 593 or die "$self->{path}: late open failure ($!)";
607 594
608 $h -= $l - 1; 595 $h -= $l - 1;
609 596
610 if (0) { # !AIO
611 if ($l) {
612 sysseek $fh, $l, 0;
613 }
614 }
615
616 my $transfer = $queue->start_transfer($h); 597 my $transfer = $queue->start_transfer ($h);
617 my $locked; 598 my $locked;
618 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size 599 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
619 600
620 while ($h > 0) { 601 while ($h > 0) {
621 unless ($locked) { 602 unless ($locked) {
622 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { 603 if ($locked ||= $transfer->try ($::WAIT_INTERVAL)) {
623 $bufsize = $::BUFSIZE; 604 $bufsize = $::BUFSIZE;
624 $self->{time} = $::NOW; 605 $self->{time} = $::NOW;
625 $self->{written} = 0; 606 $self->{written} = 0;
626 } 607 }
627 } 608 }
629 if ($blocked{$self->{remote_id}}) { 610 if ($blocked{$self->{remote_id}}) {
630 $self->{h}{connection} = "close"; 611 $self->{h}{connection} = "close";
631 die bless {}, err::; 612 die bless {}, err::;
632 } 613 }
633 614
634 if (0) { # !AIO 615 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0
635 sysread $fh, $buf, $h > $bufsize ? $bufsize : $h
636 or last; 616 or last;
637 } else {
638 aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h),
639 $buf, 0, sub {
640 $r = $_[0];
641 Coro::ready($current);
642 });
643 &Coro::schedule;
644 last unless $r;
645 }
646 617
647 $tbf->request(length $buf); 618 $tbf->request (length $buf);
648 my $w = syswrite $self->{fh}, $buf 619 my $w = $self->{fh}->syswrite ($buf)
649 or last; 620 or last;
650 $::written += $w; 621 $::written += $w;
651 $self->{written} += $w; 622 $self->{written} += $w;
652 $l += $r; 623 $l += $w;
653 } 624 }
654 625
655 close $fh; 626 close $fh;
656 } 627 }
657} 628}
658 629
6591; 6301
631

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