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/cvs/cvsroot/Coro/myhttpd/httpd.pl
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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.80 by root, Fri Dec 1 04:18:32 2006 UTC vs.
Revision 1.90 by root, Wed Jan 27 20:06:57 2010 UTC

1use Coro; 1use Coro;
2use Coro::Semaphore; 2use Coro::Semaphore;
3use Coro::SemaphoreSet;
3use Coro::Event; 4use Coro::EV;
4use Coro::Socket; 5use Coro::Socket;
5use Coro::Signal; 6use Coro::Signal;
6use Coro::AIO (); 7use Coro::AIO ();
7 8
9use Fcntl;
8use HTTP::Date; 10use HTTP::Date;
9use POSIX (); 11use POSIX ();
10 12
11use Compress::Zlib (); 13use Compress::Zlib ();
12 14
13no utf8; 15use common::sense;
14use bytes;
15 16
16# at least on my machine, this thingy serves files 17# at least on my machine, this thingy serves files
17# quite a bit faster than apache, ;) 18# quite a bit faster than apache, ;)
18# and quite a bit slower than thttpd :( 19# and quite a bit slower than thttpd :(
19 20
20$SIG{PIPE} = 'IGNORE'; 21$SIG{PIPE} = 'IGNORE';
21 22
22our $accesslog; 23our $accesslog;
23our $errorlog; 24our $errorlog;
25our @listen_sockets;
24 26
25our $NOW; 27our $NOW;
26our $HTTP_NOW; 28our $HTTP_NOW;
27 29
28our $ERROR_LOG; 30our $ERROR_LOG;
29our $ACCESS_LOG; 31our $ACCESS_LOG;
32our $TRANSFER_LOCK = new Coro::SemaphoreSet; # lock to be acquired per ip
30 33
31Event->timer(interval => 1, hard => 1, cb => sub { 34our $update_time = EV::periodic 0, 1, undef, sub {
32 $NOW = time; 35 $NOW = time;
33 $HTTP_NOW = time2str $NOW; 36 $HTTP_NOW = time2str $NOW;
34})->now; 37};
38$update_time->invoke;
35 39
36if ($ERROR_LOG) { 40if ($ERROR_LOG) {
37 use IO::Handle; 41 use IO::Handle;
38 open $errorlog, ">>$ERROR_LOG" 42 open $errorlog, ">>$ERROR_LOG"
39 or die "$ERROR_LOG: $!"; 43 or die "$ERROR_LOG: $!";
53 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW); 57 my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW);
54 printf "$NOW: $format\n", @_; 58 printf "$NOW: $format\n", @_;
55 printf $errorlog "$NOW: $format\n", @_ if $errorlog; 59 printf $errorlog "$NOW: $format\n", @_ if $errorlog;
56} 60}
57 61
58our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; 62our $connections = new Coro::Semaphore $::MAX_CONNECTS || 250;
59our $httpevent = new Coro::Signal; 63our $httpevent = new Coro::Signal;
60 64
61our $queue_file = new transferqueue $MAX_TRANSFERS; 65our $queue_file = new transferqueue $::MAX_TRANSFERS;
62our $queue_index = new transferqueue 10; 66our $queue_index = new transferqueue 10;
63 67
64our $tbf_top = new tbf rate => $TBF_RATE || 100000; 68our $tbf_top = new tbf rate => $::TBF_RATE || 100000;
65 69
66my $unused_bytes = 0; 70my $unused_bytes = 0;
67my $unused_last = time; 71my $unused_last = time;
68 72
69sub unused_bandwidth { 73sub unused_bandwidth {
74 $queue_file->force_wake_next; 78 $queue_file->force_wake_next;
75 slog 1, "forced filetransfer due to unused bandwidth"; 79 slog 1, "forced filetransfer due to unused bandwidth";
76 } 80 }
77} 81}
78 82
79my @newcons;
80my @pool;
81
82# one "execution thread"
83sub handler {
84 while () {
85 if (@newcons) {
86 eval {
87 conn->new(@{pop @newcons})->handle;
88 };
89 slog 1, "$@" if $@ && !ref $@;
90
91 $httpevent->broadcast; # only for testing, but doesn't matter much
92
93 $connections->up;
94 } else {
95 last if @pool >= $MAX_POOL;
96 push @pool, $Coro::current;
97 schedule;
98 }
99 }
100}
101
102sub listen_on { 83sub listen_on {
103 my $listen = $_[0]; 84 my $listen = $_[0];
104 85
105 push @listen_sockets, $listen; 86 push @listen_sockets, $listen;
106 87
107 # the "main thread" 88 # the "main thread"
108 async { 89 async {
109 slog 1, "accepting connections"; 90 slog 1, "accepting connections";
110 while () { 91 while () {
111 $connections->down; 92 $connections->down;
112 push @newcons, [$listen->accept]; 93 my @conn = $listen->accept;
113 #slog 3, "accepted @$connections ".scalar(@pool); 94 #slog 3, "accepted @$connections ".scalar(@pool);
114 if (@pool) { 95
115 (pop @pool)->ready; 96 async_pool {
116 } else { 97 eval {
117 async \&handler; 98 conn->new (@conn)->handle;
99 };
100 slog 1, "$@" if $@ && !ref $@;
101
102 $httpevent->broadcast; # only for testing, but doesn't matter much
103
104 $connections->up;
118 } 105 }
119 } 106 }
120 }; 107 };
121} 108}
122 109
123my $http_port = new Coro::Socket 110my $http_port = new Coro::Socket
124 LocalAddr => $SERVER_HOST, 111 LocalAddr => $::SERVER_HOST,
125 LocalPort => $SERVER_PORT, 112 LocalPort => $::SERVER_PORT,
126 ReuseAddr => 1, 113 ReuseAddr => 1,
127 Listen => 50, 114 Listen => 50,
128 or die "unable to start server"; 115 or die "unable to start server";
129 116
130listen_on $http_port; 117listen_on $http_port;
131 118
132if ($SERVER_PORT2) { 119if ($::SERVER_PORT2) {
133 my $http_port = new Coro::Socket 120 my $http_port = new Coro::Socket
134 LocalAddr => $SERVER_HOST, 121 LocalAddr => $::SERVER_HOST,
135 LocalPort => $SERVER_PORT2, 122 LocalPort => $::SERVER_PORT2,
136 ReuseAddr => 1, 123 ReuseAddr => 1,
137 Listen => 50, 124 Listen => 50,
138 or die "unable to start server"; 125 or die "unable to start server";
139 126
140 listen_on $http_port; 127 listen_on $http_port;
141} 128}
142 129
143package conn; 130package conn;
144 131
145use strict; 132use common::sense;
146use bytes;
147 133
148use Socket; 134use Socket;
149use HTTP::Date; 135use HTTP::Date;
150use Convert::Scalar 'weaken'; 136use Convert::Scalar 'weaken';
151use IO::AIO; 137use IO::AIO;
152 138
153IO::AIO::min_parallel $::AIO_PARALLEL; 139IO::AIO::min_parallel $::AIO_PARALLEL;
154 140
155Event->io (fd => IO::AIO::poll_fileno, 141our $AIO_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
156 poll => 'r', async => 1,
157 cb => \&IO::AIO::poll_cb);
158 142
159our %conn; # $conn{ip}{self} => connobj 143our %conn; # $conn{ip}{self} => connobj
160our %uri; # $uri{ip}{uri}{self} 144our %uri; # $uri{ip}{uri}{self}
161our %blocked; 145our %blocked;
162our %mimetype; 146our %mimetype;
163 147
164sub read_mimetypes { 148sub read_mimetypes {
165 local *M;
166 if (open M, "<mime_types") { 149 if (open my $fh, "<mime_types") {
167 while (<M>) { 150 while (<$fh>) {
168 if (/^([^#]\S+)\t+(\S+)$/) { 151 if (/^([^#]\S+)\t+(\S+)$/) {
169 $mimetype{lc $1} = $2; 152 $mimetype{lc $1} = $2;
170 } 153 }
171 } 154 }
172 } else { 155 } else {
180 my $class = shift; 163 my $class = shift;
181 my $fh = shift; 164 my $fh = shift;
182 my $peername = shift; 165 my $peername = shift;
183 my $self = bless { fh => $fh }, $class; 166 my $self = bless { fh => $fh }, $class;
184 my (undef, $iaddr) = unpack_sockaddr_in $peername 167 my (undef, $iaddr) = unpack_sockaddr_in $peername
185 or $self->err(500, "unable to decode peername"); 168 or $self->err (500, "unable to decode peername");
186 169
187 $self->{remote_addr} = 170 $self->{remote_addr} =
188 $self->{remote_id} = inet_ntoa $iaddr; 171 $self->{remote_id} = inet_ntoa $iaddr;
189 172
190 $self->{time} = $::NOW; 173 $self->{time} = $::NOW;
191 174
192 weaken ($Coro::current->{conn} = $self); 175 weaken ($Coro::current->{conn} = $self);
193 176
194 $::conns++; 177 ++$::conns;
195 $::maxconns = $::conns if $::conns > $::maxconns; 178 $::maxconns = $::conns if $::conns > $::maxconns;
196 179
197 $self; 180 $self
198} 181}
199 182
200sub DESTROY { 183sub DESTROY {
201 #my $self = shift; 184 my $self = shift;
185
202 $::conns--; 186 --$::conns;
203} 187}
204 188
205sub prune_cache { 189sub prune_cache {
206 my $hash = $_[0]; 190 my $hash = $_[0];
207 191
222 for (keys %blocked) { 206 for (keys %blocked) {
223 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW; 207 delete $blocked{$_} unless $blocked{$_}[0] > $::NOW;
224 } 208 }
225} 209}
226 210
227Event->timer(interval => 60, cb => \&prune_caches); 211our $PRUNE_WATCHER = EV::timer 60, 60, \&prune_caches;
228 212
229sub slog { 213sub slog {
230 my $self = shift; 214 my $self = shift;
231 main::slog($_[0], "$self->{remote_id}> $_[1]"); 215 main::slog($_[0], "$self->{remote_id}> $_[1]");
232} 216}
293 $hdr->{"Content-Type"} = "text/plain"; 277 $hdr->{"Content-Type"} = "text/plain";
294 $hdr->{"Content-Length"} = length $content; 278 $hdr->{"Content-Length"} = length $content;
295 } 279 }
296 $hdr->{"Connection"} = "close"; 280 $hdr->{"Connection"} = "close";
297 281
298 $self->response($code, $msg, $hdr, $content); 282 $self->response ($code, $msg, $hdr, $content);
299 283
300 die bless {}, err::; 284 die bless {}, err::
301} 285}
302 286
303sub handle { 287sub handle {
304 my $self = shift; 288 my $self = shift;
305 my $fh = $self->{fh}; 289 my $fh = $self->{fh};
306 290
307 my $host; 291 my $host;
308 292
309 $fh->timeout($::REQ_TIMEOUT); 293 $fh->timeout($::REQ_TIMEOUT);
310 while() { 294 while () {
311 $self->{reqs}++; 295 $self->{reqs}++;
312 296
313 # read request and parse first line 297 # read request and parse first line
314 my $req = $fh->readline("\015\012\015\012"); 298 my $req = $fh->readline("\015\012\015\012");
315 299
424# uri => path mapping 408# uri => path mapping
425sub map_uri { 409sub map_uri {
426 my $self = shift; 410 my $self = shift;
427 my $host = $self->{server_name}; 411 my $host = $self->{server_name};
428 my $uri = $self->{uri}; 412 my $uri = $self->{uri};
413
414 $host =~ /[\/\\]/
415 and $self->err(400, "bad request");
429 416
430 # some massaging, also makes it more secure 417 # some massaging, also makes it more secure
431 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 418 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
432 $uri =~ s%//+%/%g; 419 $uri =~ s%//+%/%g;
433 $uri =~ s%/\.(?=/|$)%%g; 420 $uri =~ s%/\.(?=/|$)%%g;
477 464
478 if ($self->{name} =~ s%^/internal/([^/]+)%%) { 465 if ($self->{name} =~ s%^/internal/([^/]+)%%) {
479 if ($::internal{$1}) { 466 if ($::internal{$1}) {
480 $::internal{$1}->($self); 467 $::internal{$1}->($self);
481 } else { 468 } else {
482 $self->err(404, "not found"); 469 $self->err (404, "not found");
483 } 470 }
484 } else { 471 } else {
485 472
486 stat $path 473 Coro::AIO::aio_stat $path
487 or $self->err(404, "not found"); 474 and $self->err (404, "not found");
488 475
489 $self->{stat} = [stat _]; 476 $self->{stat} = [stat _];
490 477
491 # idiotic netscape sends idiotic headers AGAIN 478 # idiotic netscape sends idiotic headers AGAIN
492 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 479 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
495 if (-d _ && -r _) { 482 if (-d _ && -r _) {
496 # directory 483 # directory
497 if ($path !~ /\/$/) { 484 if ($path !~ /\/$/) {
498 # create a redirect to get the trailing "/" 485 # create a redirect to get the trailing "/"
499 # we don't try to avoid the :80 486 # we don't try to avoid the :80
500 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); 487 $self->err (301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
501 } else { 488 } else {
502 $ims < $self->{stat}[9] 489 $ims < $self->{stat}[9]
503 or $self->err(304, "not modified"); 490 or $self->err (304, "not modified");
504 491
505 if (-r "$path/index.html") { 492 if (-r "$path/index.html") {
506 # replace directory "size" by index.html filesize 493 # replace directory "size" by index.html filesize
507 $self->{stat} = [stat ($self->{path} .= "/index.html")]; 494 $self->{stat} = [stat ($self->{path} .= "/index.html")];
508 $self->handle_file($queue_index, $tbf_top); 495 $self->handle_file ($queue_index, $tbf_top);
509 } else { 496 } else {
510 $self->handle_dir; 497 $self->handle_dir;
511 } 498 }
512 } 499 }
513 } elsif (-f _ && -r _) { 500 } elsif (-f _ && -r _) {
514 -x _ and $self->err(403, "forbidden"); 501 -x _ and $self->err (403, "forbidden");
515 502
516 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { 503 if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
517 my $timeout = $::NOW + 10; 504 my $timeout = $::NOW + 10;
518 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { 505 while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) {
519 if ($timeout < $::NOW) { 506 if ($timeout < $::NOW) {
522 $httpevent->wait; 509 $httpevent->wait;
523 } 510 }
524 } 511 }
525 } 512 }
526 513
527 $self->handle_file($queue_file, $tbf_top); 514 $self->handle_file ($queue_file, $tbf_top);
528 } else { 515 } else {
529 $self->err(404, "not found"); 516 $self->err (404, "not found");
530 } 517 }
531 } 518 }
532} 519}
533 520
534sub handle_dir { 521sub handle_dir {
535 my $self = shift; 522 my $self = shift;
536 my $idx = $self->diridx; 523 my $idx = $self->diridx;
537 524
538 $self->response(200, "ok", 525 $self->response (200, "ok",
539 { 526 {
540 "Content-Type" => "text/html; charset=utf-8", 527 "Content-Type" => "text/html; charset=utf-8",
541 "Content-Length" => length $idx, 528 "Content-Length" => length $idx,
542 "Last-Modified" => time2str ($self->{stat}[9]), 529 "Last-Modified" => time2str ($self->{stat}[9]),
543 }, 530 },
553 }; 540 };
554 541
555 my @code = (200, "ok"); 542 my @code = (200, "ok");
556 my ($l, $h); 543 my ($l, $h);
557 544
558 if ($self->{h}{range} =~ /^bytes=(.*)$/) { 545 if ($self->{h}{range} =~ /^bytes=(.*)$/i) {
559 for (split /,/, $1) { 546 for (split /,/, $1) {
560 if (/^-(\d+)$/) { 547 if (/^-(\d+)$/) {
561 ($l, $h) = ($length - $1, $length - 1); 548 ($l, $h) = ($length - $1, $length - 1);
562 } elsif (/^(\d+)-(\d*)$/) { 549 } elsif (/^(\d+)-(\d*)$/) {
563 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 550 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
567 } 554 }
568 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; 555 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
569 } 556 }
570 $hdr->{"Content-Range"} = "bytes */$length"; 557 $hdr->{"Content-Range"} = "bytes */$length";
571 $hdr->{"Content-Length"} = $length; 558 $hdr->{"Content-Length"} = $length;
572 $self->err(416, "not satisfiable", $hdr, ""); 559 $self->err (416, "not satisfiable", $hdr, "");
573 560
574satisfiable: 561satisfiable:
575 # check for segmented downloads 562 # check for segmented downloads
576 if ($l && $::NO_SEGMENTED) { 563 if ($l && $::NO_SEGMENTED) {
577 my $timeout = $::NOW + 15; 564 my $timeout = $::NOW + 15;
578 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { 565 while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
579 if ($timeout <= $::NOW) { 566 if ($timeout <= $::NOW) {
580 $self->block($::BLOCKTIME, "segmented downloads are forbidden"); 567 $self->block ($::BLOCKTIME, "segmented downloads are forbidden");
581 #$self->err_segmented_download; 568 #$self->err_segmented_download;
582 } else { 569 } else {
583 $httpevent->wait; 570 $httpevent->wait;
584 } 571 }
585 } 572 }
596 583
597 $self->{path} =~ /\.([^.]+)$/; 584 $self->{path} =~ /\.([^.]+)$/;
598 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; 585 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
599 $hdr->{"Content-Length"} = $length; 586 $hdr->{"Content-Length"} = $length;
600 587
601 $self->response(@code, $hdr, ""); 588 $self->response (@code, $hdr, "");
602 589
603 if ($self->{method} eq "GET") { 590 if ($self->{method} eq "GET") {
604 $self->{time} = $::NOW; 591 $self->{time} = $::NOW;
605 $self->{written} = 0; 592 $self->{written} = 0;
606 593
607 my $fh; 594 my $fh = Coro::AIO::aio_open $self->{path}, Fcntl::O_RDONLY, 0
608
609 open $fh, "<", $self->{path}
610 or die "$self->{path}: late open failure ($!)"; 595 or die "$self->{path}: late open failure ($!)";
611 596
612 $h -= $l - 1; 597 $h -= $l - 1;
613 598
614 if (0) { # !AIO
615 if ($l) {
616 sysseek $fh, $l, 0;
617 }
618 }
619
620 my $transfer = $queue->start_transfer($h); 599 my $transfer = $queue->start_transfer ($h);
621 my $locked; 600 my $locked;
622 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size 601 my $bufsize = $::WAIT_BUFSIZE; # initial buffer size
623 602
624 while ($h > 0) { 603 while ($h > 0) {
604 Coro::cede;
605 my $transfer_lock = $TRANSFER_LOCK->guard ($self->{remote_id});
606
625 unless ($locked) { 607 unless ($locked) {
626 if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { 608 if ($locked ||= $transfer->try ($::WAIT_INTERVAL)) {
627 $bufsize = $::BUFSIZE; 609 $bufsize = $::BUFSIZE;
628 $self->{time} = $::NOW; 610 $self->{time} = $::NOW;
629 $self->{written} = 0; 611 $self->{written} = 0;
630 } 612 }
631 } 613 }
637 619
638 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0 620 Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0
639 or last; 621 or last;
640 622
641 $tbf->request (length $buf); 623 $tbf->request (length $buf);
642 my $w = syswrite $self->{fh}, $buf 624 my $w = $self->{fh}->syswrite ($buf)
643 or last; 625 or last;
644 $::written += $w; 626 $::written += $w;
645 $self->{written} += $w; 627 $self->{written} += $w;
646 $l += $w; 628 $l += $w;
647 } 629 }

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