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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.70 by root, Fri Dec 31 20:31:47 2010 UTC vs.
Revision 1.85 by root, Sun Jan 2 05:31:56 2011 UTC

… …
36 36
37=cut 37=cut
38 38
39package AnyEvent::HTTP; 39package AnyEvent::HTTP;
40 40
41use strict; 41use common::sense;
42no warnings;
43 42
44use Errno (); 43use Errno ();
45 44
46use AnyEvent 5.0 (); 45use AnyEvent 5.0 ();
47use AnyEvent::Util (); 46use AnyEvent::Util ();
… …
122 121
123If the server sends a header multiple times, then their contents will be 122If the server sends a header multiple times, then their contents will be
124joined together with a comma (C<,>), as per the HTTP spec. 123joined together with a comma (C<,>), as per the HTTP spec.
125 124
126If an internal error occurs, such as not being able to resolve a hostname, 125If an internal error occurs, such as not being able to resolve a hostname,
127then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x> 126then C<$data> will be C<undef>, C<< $headers->{Status} >> will be
128(usually C<599>) and the C<Reason> pseudo-header will contain an error 127C<590>-C<599> and the C<Reason> pseudo-header will contain an error
129message. 128message. Currently the following status codes are used:
129
130=over 4
131
132=item 595 - errors during connection etsbalishment, proxy handshake.
133
134=item 596 - errors during TLS negotiation, request sending and header processing.
135
136=item 597 - errors during body receiving or processing.
137
138=item 598 - user aborted request via C<on_header> or C<on_body>.
139
140=item 599 - other, usually nonretryable, errors (garbled URL etc.).
141
142=back
130 143
131A typical callback might look like this: 144A typical callback might look like this:
132 145
133 sub { 146 sub {
134 my ($body, $hdr) = @_; 147 my ($body, $hdr) = @_;
… …
182=item cookie_jar => $hash_ref 195=item cookie_jar => $hash_ref
183 196
184Passing this parameter enables (simplified) cookie-processing, loosely 197Passing this parameter enables (simplified) cookie-processing, loosely
185based on the original netscape specification. 198based on the original netscape specification.
186 199
187The C<$hash_ref> must be an (initially empty) hash reference which will 200The C<$hash_ref> must be an (initially empty) hash reference which
188get updated automatically. It is possible to save the cookie jar to 201will get updated automatically. It is possible to save the cookie jar
189persistent storage with something like JSON or Storable, but this is not 202to persistent storage with something like JSON or Storable - see the
190recommended, as session-only cookies might survive longer than expected. 203C<AnyEvent::HTTP::cookie_jar_expire> function if you wish to remove
204expired or session-only cookies, and also for documentation on the format
205of the cookie jar.
191 206
192Note that this cookie implementation is not meant to be complete. If 207Note that this cookie implementation is not meant to be complete. If
193you want complete cookie management you have to do that on your 208you want complete cookie management you have to do that on your
194own. C<cookie_jar> is meant as a quick fix to get some cookie-using sites 209own. C<cookie_jar> is meant as a quick fix to get most cookie-using sites
195working. Cookies are a privacy disaster, do not use them unless required 210working. Cookies are a privacy disaster, do not use them unless required
196to. 211to.
197 212
198When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:> 213When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
199headers will be set and handled by this module, otherwise they will be 214headers will be set and handled by this module, otherwise they will be
… …
364 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 379 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
365 380
366 _slot_schedule $_[0]; 381 _slot_schedule $_[0];
367} 382}
368 383
384#############################################################################
385
386# expire cookies
387sub cookie_jar_expire($;$) {
388 my ($jar, $session_end) = @_;
389
390 %$jar = () if $jar->{version} != 1;
391
392 my $anow = AE::now;
393
394 while (my ($chost, $paths) = each %$jar) {
395 next unless ref $paths;
396
397 while (my ($cpath, $cookies) = each %$paths) {
398 while (my ($cookie, $kv) = each %$cookies) {
399 if (exists $kv->{_expires}) {
400 delete $cookies->{$cookie}
401 if $anow > $kv->{_expires};
402 } elsif ($session_end) {
403 delete $cookies->{$cookie};
404 }
405 }
406
407 delete $paths->{$cpath}
408 unless %$cookies;
409 }
410
411 delete $jar->{$chost}
412 unless %$paths;
413 }
414}
415
416# extract cookies from jar
417sub cookie_jar_extract($$$$) {
418 my ($jar, $uscheme, $uhost, $upath) = @_;
419
420 $uhost = lc $uhost;
421
422 %$jar = () if $jar->{version} != 1;
423
424 my @cookies;
425
426 while (my ($chost, $paths) = each %$jar) {
427 next unless ref $paths;
428
429 if ($chost =~ /^\./) {
430 next unless $chost eq substr $uhost, -length $chost;
431 } elsif ($chost =~ /\./) {
432 next unless $chost eq $uhost;
433 } else {
434 next;
435 }
436
437 while (my ($cpath, $cookies) = each %$paths) {
438 next unless $cpath eq substr $upath, 0, length $cpath;
439
440 while (my ($cookie, $kv) = each %$cookies) {
441 next if $uscheme ne "https" && exists $kv->{secure};
442
443 if (exists $kv->{_expires} and AE::now > $kv->{_expires}) {
444 delete $cookies->{$cookie};
445 next;
446 }
447
448 my $value = $kv->{value};
449
450 if ($value =~ /[=;,[:space:]]/) {
451 $value =~ s/([\\"])/\\$1/g;
452 $value = "\"$value\"";
453 }
454
455 push @cookies, "$cookie=$value";
456 }
457 }
458 }
459
460 \@cookies
461}
462
463# parse set_cookie header into jar
464sub cookie_jar_set_cookie($$$$) {
465 my ($jar, $set_cookie, $uhost, $date) = @_;
466
467 my $anow = int AE::now;
468 my $snow; # server-now
469
470 for ($set_cookie) {
471 # parse NAME=VALUE
472 my @kv;
473
474 # expires is not http-compliant in the original cookie-spec,
475 # we support the official date format and some extensions
476 while (
477 m{
478 \G\s*
479 (?:
480 expires \s*=\s* ([A-Z][a-z][a-z]+,\ [^,;]+)
481 | ([^=;,[:space:]]+) (?: \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) )?
482 )
483 }gcxsi
484 ) {
485 my $name = $2;
486 my $value = $4;
487
488 if (defined $1) {
489 # expires
490 $name = "expires";
491 $value = $1;
492 } elsif (defined $3) {
493 # quoted
494 $value = $3;
495 $value =~ s/\\(.)/$1/gs;
496 }
497
498 push @kv, lc $name, $value;
499
500 last unless /\G\s*;/gc;
501 }
502
503 last unless @kv;
504
505 my $name = shift @kv;
506 my %kv = (value => shift @kv, @kv);
507
508 if (exists $kv{"max-age"}) {
509 $kv{_expires} = $anow + delete $kv{"max-age"};
510 } elsif (exists $kv{expires}) {
511 $snow ||= parse_date ($date) || $anow;
512 $kv{_expires} = $anow + (parse_date (delete $kv{expires}) - $snow);
513 } else {
514 delete $kv{_expires};
515 }
516
517 my $cdom;
518 my $cpath = (delete $kv{path}) || "/";
519
520 if (exists $kv{domain}) {
521 $cdom = delete $kv{domain};
522
523 $cdom =~ s/^\.?/./; # make sure it starts with a "."
524
525 next if $cdom =~ /\.$/;
526
527 # this is not rfc-like and not netscape-like. go figure.
528 my $ndots = $cdom =~ y/.//;
529 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
530 } else {
531 $cdom = $uhost;
532 }
533
534 # store it
535 $jar->{version} = 1;
536 $jar->{lc $cdom}{$cpath}{$name} = \%kv;
537
538 redo if /\G\s*,/gc;
539 }
540}
541
369# continue to parse $_ for headers and place them into the arg 542# continue to parse $_ for headers and place them into the arg
370sub parse_hdr() { 543sub parse_hdr() {
371 my %hdr; 544 my %hdr;
372 545
373 # things seen, not parsed: 546 # things seen, not parsed:
… …
448 621
449 $upath =~ s%^/?%/%; 622 $upath =~ s%^/?%/%;
450 623
451 # cookie processing 624 # cookie processing
452 if (my $jar = $arg{cookie_jar}) { 625 if (my $jar = $arg{cookie_jar}) {
453 %$jar = () if $jar->{version} != 1; 626 my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
454
455 my @cookie;
456
457 while (my ($chost, $paths) = each %$jar) {
458 if ($chost =~ /^\./) {
459 next unless $chost eq substr $uhost, -length $chost;
460 } elsif ($chost =~ /\./) {
461 next unless $chost eq $uhost;
462 } else {
463 next;
464 }
465 627
466 while (my ($cpath, $cookies) = each %$paths) {
467 next unless $cpath eq substr $upath, 0, length $cpath;
468
469 while (my ($cookie, $kv) = each %$cookies) {
470 next if $uscheme ne "https" && exists $kv->{secure};
471
472 if (exists $kv->{expires}) {
473 if (AE::now > parse_date ($kv->{expires})) {
474 delete $cookies->{$cookie};
475 next;
476 }
477 }
478
479 my $value = $kv->{value};
480 $value =~ s/([\\"])/\\$1/g;
481 push @cookie, "$cookie=\"$value\"";
482 }
483 }
484 }
485
486 $hdr{cookie} = join "; ", @cookie 628 $hdr{cookie} = join "; ", @$cookies
487 if @cookie; 629 if @$cookies;
488 } 630 }
489 631
490 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path 632 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
491 633
492 if ($proxy) { 634 if ($proxy) {
… …
516 _get_slot $uhost, sub { 658 _get_slot $uhost, sub {
517 $state{slot_guard} = shift; 659 $state{slot_guard} = shift;
518 660
519 return unless $state{connect_guard}; 661 return unless $state{connect_guard};
520 662
663 my $ae_error = 595; # connecting
664
665 # handle actual, non-tunneled, request
666 my $handle_actual_request = sub {
667 $ae_error = 596; # request phase
668
669 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
670
671 # send request
672 $state{handle}->push_write (
673 "$method $rpath HTTP/1.1\015\012"
674 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
675 . "\015\012"
676 . (delete $arg{body})
677 );
678
679 # return if error occured during push_write()
680 return unless %state;
681
682 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
683
684 # status line and headers
685 $state{read_response} = sub {
686 for ("$_[1]") {
687 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
688
689 /^HTTP\/0*([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/gxci
690 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
691
692 # 100 Continue handling
693 # should not happen as we don't send expect: 100-continue,
694 # but we handle it just in case.
695 # since we send the request body regardless, if we get an error
696 # we are out of-sync, which we currently do NOT handle correctly.
697 return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
698 if $2 eq 100;
699
700 push @pseudo,
701 HTTPVersion => $1,
702 Status => $2,
703 Reason => $3,
704 ;
705
706 my $hdr = parse_hdr
707 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
708
709 %hdr = (%$hdr, @pseudo);
710 }
711
712 # redirect handling
713 # microsoft and other shitheads don't give a shit for following standards,
714 # try to support some common forms of broken Location headers.
715 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
716 $hdr{location} =~ s/^\.\/+//;
717
718 my $url = "$rscheme://$uhost:$uport";
719
720 unless ($hdr{location} =~ s/^\///) {
721 $url .= $upath;
722 $url =~ s/\/[^\/]*$//;
723 }
724
725 $hdr{location} = "$url/$hdr{location}";
726 }
727
728 my $redirect;
729
730 if ($recurse) {
731 my $status = $hdr{Status};
732
733 # industry standard is to redirect POST as GET for
734 # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
735 # also, the UA should ask the user for 301 and 307 and POST,
736 # industry standard seems to be to simply follow.
737 # we go with the industry standard.
738 if ($status == 301 or $status == 302 or $status == 303) {
739 # HTTP/1.1 is unclear on how to mutate the method
740 $method = "GET" unless $method eq "HEAD";
741 $redirect = 1;
742 } elsif ($status == 307) {
743 $redirect = 1;
744 }
745 }
746
747 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
748 my $may_keep_alive = $_[3];
749
750 $state{handle}->destroy if $state{handle};
751 %state = ();
752
753 if (defined $_[1]) {
754 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
755 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
756 }
757
758 # set-cookie processing
759 if ($arg{cookie_jar}) {
760 cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date};
761 }
762
763 if ($redirect && exists $hdr{location}) {
764 # we ignore any errors, as it is very common to receive
765 # Content-Length != 0 but no actual body
766 # we also access %hdr, as $_[1] might be an erro
767 http_request (
768 $method => $hdr{location},
769 %arg,
770 recurse => $recurse - 1,
771 Redirect => [$_[0], \%hdr],
772 $cb);
773 } else {
774 $cb->($_[0], \%hdr);
775 }
776 };
777
778 $ae_error = 597; # body phase
779
780 my $len = $hdr{"content-length"};
781
782 # body handling, many different code paths
783 # - no body expected
784 # - want_body_handle
785 # - te chunked
786 # - 2x length known (with or without on_body)
787 # - 2x length not known (with or without on_body)
788 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
789 $finish->(undef, 598 => "Request cancelled by on_header");
790 } elsif (
791 $hdr{Status} =~ /^(?:1..|204|205|304)$/
792 or $method eq "HEAD"
793 or (defined $len && $len == 0) # == 0, not !, because "0 " is true
794 ) {
795 # no body
796 $finish->("", undef, undef, 1);
797
798 } elsif (!$redirect && $arg{want_body_handle}) {
799 $_[0]->on_eof (undef);
800 $_[0]->on_error (undef);
801 $_[0]->on_read (undef);
802
803 $finish->(delete $state{handle});
804
805 } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
806 my $cl = 0;
807 my $body = undef;
808 my $on_body = $arg{on_body} || sub { $body .= shift; 1 };
809
810 $state{read_chunk} = sub {
811 $_[1] =~ /^([0-9a-fA-F]+)/
812 or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
813
814 my $len = hex $1;
815
816 if ($len) {
817 $cl += $len;
818
819 $_[0]->push_read (chunk => $len, sub {
820 $on_body->($_[1], \%hdr)
821 or return $finish->(undef, 598 => "Request cancelled by on_body");
822
823 $_[0]->push_read (line => sub {
824 length $_[1]
825 and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
826 $_[0]->push_read (line => $state{read_chunk});
827 });
828 });
829 } else {
830 $hdr{"content-length"} ||= $cl;
831
832 $_[0]->push_read (line => $qr_nlnl, sub {
833 if (length $_[1]) {
834 for ("$_[1]") {
835 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
836
837 my $hdr = parse_hdr
838 or return $finish->(undef, $ae_error => "Garbled response trailers");
839
840 %hdr = (%hdr, %$hdr);
841 }
842 }
843
844 $finish->($body, undef, undef, 1);
845 });
846 }
847 };
848
849 $_[0]->push_read (line => $state{read_chunk});
850
851 } elsif ($arg{on_body}) {
852 if (defined $len) {
853 $_[0]->on_read (sub {
854 $len -= length $_[0]{rbuf};
855
856 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
857 or return $finish->(undef, 598 => "Request cancelled by on_body");
858
859 $len > 0
860 or $finish->("", undef, undef, 1);
861 });
862 } else {
863 $_[0]->on_eof (sub {
864 $finish->("");
865 });
866 $_[0]->on_read (sub {
867 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
868 or $finish->(undef, 598 => "Request cancelled by on_body");
869 });
870 }
871 } else {
872 $_[0]->on_eof (undef);
873
874 if (defined $len) {
875 $_[0]->on_read (sub {
876 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
877 if $len <= length $_[0]{rbuf};
878 });
879 } else {
880 $_[0]->on_error (sub {
881 ($! == Errno::EPIPE || !$!)
882 ? $finish->(delete $_[0]{rbuf})
883 : $finish->(undef, $ae_error => $_[2]);
884 });
885 $_[0]->on_read (sub { });
886 }
887 }
888 };
889
890 $state{handle}->push_read (line => $qr_nlnl, $state{read_response});
891 };
892
521 my $connect_cb = sub { 893 my $connect_cb = sub {
522 $state{fh} = shift 894 $state{fh} = shift
523 or do { 895 or do {
524 my $err = "$!"; 896 my $err = "$!";
525 %state = (); 897 %state = ();
526 return $cb->(undef, { @pseudo, Status => 599, Reason => $err }); 898 return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
527 }; 899 };
528
529 pop; # free memory, save a tree
530 900
531 return unless delete $state{connect_guard}; 901 return unless delete $state{connect_guard};
532 902
533 # get handle 903 # get handle
534 $state{handle} = new AnyEvent::Handle 904 $state{handle} = new AnyEvent::Handle
… …
537 tls_ctx => $arg{tls_ctx}, 907 tls_ctx => $arg{tls_ctx},
538 # these need to be reconfigured on keepalive handles 908 # these need to be reconfigured on keepalive handles
539 timeout => $timeout, 909 timeout => $timeout,
540 on_error => sub { 910 on_error => sub {
541 %state = (); 911 %state = ();
542 $cb->(undef, { @pseudo, Status => 599, Reason => $_[2] }); 912 $cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
543 }, 913 },
544 on_eof => sub { 914 on_eof => sub {
545 %state = (); 915 %state = ();
546 $cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" }); 916 $cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
547 }, 917 },
548 ; 918 ;
549 919
550 # limit the number of persistent connections 920 # limit the number of persistent connections
551 # keepalive not yet supported 921 # keepalive not yet supported
… …
557# $hdr{connection} = "keep-alive"; 927# $hdr{connection} = "keep-alive";
558# } 928# }
559 929
560 $state{handle}->starttls ("connect") if $rscheme eq "https"; 930 $state{handle}->starttls ("connect") if $rscheme eq "https";
561 931
562 # handle actual, non-tunneled, request
563 my $handle_actual_request = sub {
564 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
565
566 # send request
567 $state{handle}->push_write (
568 "$method $rpath HTTP/1.1\015\012"
569 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
570 . "\015\012"
571 . (delete $arg{body})
572 );
573
574 # return if error occured during push_write()
575 return unless %state;
576
577 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
578
579 # status line and headers
580 $state{read_response} = sub {
581 for ("$_[1]") {
582 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
583
584 /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
585 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
586
587 # 100 Continue handling
588 # should not happen as we don't send expect: 100-continue,
589 # but we handle it just in case.
590 # since we send the request body regardless, if we get an error
591 # we are out of-sync, which we currently do NOT handle correctly.
592 return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
593 if $2 eq 100;
594
595 push @pseudo,
596 HTTPVersion => $1,
597 Status => $2,
598 Reason => $3,
599 ;
600
601 my $hdr = parse_hdr
602 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
603
604 %hdr = (%$hdr, @pseudo);
605 }
606
607 # redirect handling
608 # microsoft and other shitheads don't give a shit for following standards,
609 # try to support some common forms of broken Location headers.
610 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
611 $hdr{location} =~ s/^\.\/+//;
612
613 my $url = "$rscheme://$uhost:$uport";
614
615 unless ($hdr{location} =~ s/^\///) {
616 $url .= $upath;
617 $url =~ s/\/[^\/]*$//;
618 }
619
620 $hdr{location} = "$url/$hdr{location}";
621 }
622
623 my $redirect;
624
625 if ($recurse) {
626 my $status = $hdr{Status};
627
628 # industry standard is to redirect POST as GET for
629 # 301, 302 and 303, in contrast to http/1.0 and 1.1.
630 # also, the UA should ask the user for 301 and 307 and POST,
631 # industry standard seems to be to simply follow.
632 # we go with the industry standard.
633 if ($status == 301 or $status == 302 or $status == 303) {
634 # HTTP/1.1 is unclear on how to mutate the method
635 $method = "GET" unless $method eq "HEAD";
636 $redirect = 1;
637 } elsif ($status == 307) {
638 $redirect = 1;
639 }
640 }
641
642 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
643 my $keepalive = pop;
644
645 $state{handle}->destroy if $state{handle};
646 %state = ();
647
648 if (defined $_[1]) {
649 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
650 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
651 }
652
653 # set-cookie processing
654 if ($arg{cookie_jar}) {
655 for ($hdr{"set-cookie"}) {
656 # parse NAME=VALUE
657 my @kv;
658
659 while (
660 m{
661 \G\s*
662 (?:
663 expires \s*=\s* ([A-Z][a-z][a-z],\ [^,;]+)
664 | ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )
665 )
666 }gcxsi
667 ) {
668 my $name = $2;
669 my $value = $4;
670
671 unless (defined $name) {
672 # expires
673 $name = "expires";
674 $value = $1;
675 } elsif (!defined $value) {
676 # quoted
677 $value = $3;
678 $value =~ s/\\(.)/$1/gs;
679 }
680
681 push @kv, lc $name, $value;
682
683 last unless /\G\s*;/gc;
684 }
685
686 last unless @kv;
687
688 my $name = shift @kv;
689 my %kv = (value => shift @kv, @kv);
690
691 $kv{expires} ||= format_date (AE::now + $kv{"max-age"})
692 if exists $kv{"max-age"};
693
694 my $cdom;
695 my $cpath = (delete $kv{path}) || "/";
696
697 if (exists $kv{domain}) {
698 $cdom = delete $kv{domain};
699
700 $cdom =~ s/^\.?/./; # make sure it starts with a "."
701
702 next if $cdom =~ /\.$/;
703
704 # this is not rfc-like and not netscape-like. go figure.
705 my $ndots = $cdom =~ y/.//;
706 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
707 } else {
708 $cdom = $uhost;
709 }
710
711 # store it
712 $arg{cookie_jar}{version} = 1;
713 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
714
715 redo if /\G\s*,/gc;
716 }
717 }
718
719 if ($redirect && exists $hdr{location}) {
720 # we ignore any errors, as it is very common to receive
721 # Content-Length != 0 but no actual body
722 # we also access %hdr, as $_[1] might be an erro
723 http_request (
724 $method => $hdr{location},
725 %arg,
726 recurse => $recurse - 1,
727 Redirect => [$_[0], \%hdr],
728 $cb);
729 } else {
730 $cb->($_[0], \%hdr);
731 }
732 };
733
734 my $len = $hdr{"content-length"};
735
736 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
737 $finish->(undef, 598 => "Request cancelled by on_header");
738 } elsif (
739 $hdr{Status} =~ /^(?:1..|204|205|304)$/
740 or $method eq "HEAD"
741 or (defined $len && !$len)
742 ) {
743 # no body
744 $finish->("", undef, undef, 1);
745 } else {
746 # body handling, many different code paths
747 # - no body expected
748 # - want_body_handle
749 # - te chunked
750 # - 2x length known (with or without on_body)
751 # - 2x length not known (with or without on_body)
752 if (!$redirect && $arg{want_body_handle}) {
753 $_[0]->on_eof (undef);
754 $_[0]->on_error (undef);
755 $_[0]->on_read (undef);
756
757 $finish->(delete $state{handle});
758
759 } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
760 my $cl = 0;
761 my $body = undef;
762 my $on_body = $arg{on_body} || sub { $body .= shift; 1 };
763
764 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
765
766 my $read_chunk; $read_chunk = sub {
767 $_[1] =~ /^([0-9a-fA-F]+)/
768 or $finish->(undef, 599 => "Garbled chunked transfer encoding");
769
770 my $len = hex $1;
771
772 if ($len) {
773 $cl += $len;
774
775 $_[0]->push_read (chunk => $len, sub {
776 $on_body->($_[1], \%hdr)
777 or return $finish->(undef, 598 => "Request cancelled by on_body");
778
779 $_[0]->push_read (line => sub {
780 length $_[1]
781 and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
782 $_[0]->push_read (line => $read_chunk);
783 });
784 });
785 } else {
786 $hdr{"content-length"} ||= $cl;
787
788 $_[0]->push_read (line => $qr_nlnl, sub {
789 if (length $_[1]) {
790 for ("$_[1]") {
791 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
792
793 my $hdr = parse_hdr
794 or return $finish->(undef, 599 => "Garbled response trailers");
795
796 %hdr = (%hdr, %$hdr);
797 }
798 }
799
800 $finish->($body, undef, undef, 1);
801 });
802 }
803 };
804
805 $_[0]->push_read (line => $read_chunk);
806
807 } elsif ($arg{on_body}) {
808 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
809
810 if ($len) {
811 $_[0]->on_read (sub {
812 $len -= length $_[0]{rbuf};
813
814 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
815 or return $finish->(undef, 598 => "Request cancelled by on_body");
816
817 $len > 0
818 or $finish->("", undef, undef, 1);
819 });
820 } else {
821 $_[0]->on_eof (sub {
822 $finish->("");
823 });
824 $_[0]->on_read (sub {
825 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
826 or $finish->(undef, 598 => "Request cancelled by on_body");
827 });
828 }
829 } else {
830 $_[0]->on_eof (undef);
831
832 if ($len) {
833 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
834 $_[0]->on_read (sub {
835 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
836 if $len <= length $_[0]{rbuf};
837 });
838 } else {
839 $_[0]->on_error (sub {
840 ($! == Errno::EPIPE || !$!)
841 ? $finish->(delete $_[0]{rbuf})
842 : $finish->(undef, 599 => $_[2]);
843 });
844 $_[0]->on_read (sub { });
845 }
846 }
847 }
848 };
849
850 $state{handle}->push_read (line => $qr_nlnl, $state{read_response});
851 };
852
853 # now handle proxy-CONNECT method 932 # now handle proxy-CONNECT method
854 if ($proxy && $uscheme eq "https") { 933 if ($proxy && $uscheme eq "https") {
855 # oh dear, we have to wrap it into a connect request 934 # oh dear, we have to wrap it into a connect request
856 935
857 # maybe re-use $uauthority with patched port? 936 # maybe re-use $uauthority with patched port?
… …
860 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix 939 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
861 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" })); 940 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
862 941
863 if ($2 == 200) { 942 if ($2 == 200) {
864 $rpath = $upath; 943 $rpath = $upath;
865 &$handle_actual_request; 944 $handle_actual_request->();
866 } else { 945 } else {
867 %state = (); 946 %state = ();
868 $cb->(undef, { @pseudo, Status => $2, Reason => $3 }); 947 $cb->(undef, { @pseudo, Status => $2, Reason => $3 });
869 } 948 }
870 }); 949 });
871 } else { 950 } else {
872 &$handle_actual_request; 951 $handle_actual_request->();
873 } 952 }
874 }; 953 };
875 954
876 my $tcp_connect = $arg{tcp_connect} 955 my $tcp_connect = $arg{tcp_connect}
877 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect }; 956 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
878 957
879 $state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} || sub { $timeout }); 958 $state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} || sub { $timeout });
880
881 }; 959 };
882 960
883 defined wantarray && AnyEvent::Util::guard { %state = () } 961 defined wantarray && AnyEvent::Util::guard { %state = () }
884} 962}
885 963
… …
920string of the form C<http://host:port> (optionally C<https:...>), croaks 998string of the form C<http://host:port> (optionally C<https:...>), croaks
921otherwise. 999otherwise.
922 1000
923To clear an already-set proxy, use C<undef>. 1001To clear an already-set proxy, use C<undef>.
924 1002
1003=item AnyEvent::HTTP::cookie_jar_expire $jar[, $session_end]
1004
1005Remove all cookies from the cookie jar that have been expired. If
1006C<$session_end> is given and true, then additionally remove all session
1007cookies.
1008
1009You should call this function (with a true C<$session_end>) before you
1010save cookies to disk, and you should call this function after loading them
1011again. If you have a long-running program you can additonally call this
1012function from time to time.
1013
1014A cookie jar is initially an empty hash-reference that is managed by this
1015module. It's format is subject to change, but currently it is like this:
1016
1017The key C<version> has to contain C<1>, otherwise the hash gets
1018emptied. All other keys are hostnames or IP addresses pointing to
1019hash-references. The key for these inner hash references is the
1020server path for which this cookie is meant, and the values are again
1021hash-references. The keys of those hash-references is the cookie name, and
1022the value, you guessed it, is another hash-reference, this time with the
1023key-value pairs from the cookie, except for C<expires> and C<max-age>,
1024which have been replaced by a C<_expires> key that contains the cookie
1025expiry timestamp.
1026
1027Here is an example of a cookie jar with a single cookie, so you have a
1028chance of understanding the above paragraph:
1029
1030 {
1031 version => 1,
1032 "10.0.0.1" => {
1033 "/" => {
1034 "mythweb_id" => {
1035 _expires => 1293917923,
1036 value => "ooRung9dThee3ooyXooM1Ohm",
1037 },
1038 },
1039 },
1040 }
1041
925=item $date = AnyEvent::HTTP::format_date $timestamp 1042=item $date = AnyEvent::HTTP::format_date $timestamp
926 1043
927Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP 1044Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
928Date (RFC 2616). 1045Date (RFC 2616).
929 1046
930=item $timestamp = AnyEvent::HTTP::parse_date $date 1047=item $timestamp = AnyEvent::HTTP::parse_date $date
931 1048
932Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and 1049Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
933returns the corresponding POSIX timestamp, or C<undef> if the date cannot 1050bunch of minor variations of those, and returns the corresponding POSIX
934be parsed. 1051timestamp, or C<undef> if the date cannot be parsed.
935 1052
936=item $AnyEvent::HTTP::MAX_RECURSE 1053=item $AnyEvent::HTTP::MAX_RECURSE
937 1054
938The default value for the C<recurse> request parameter (default: C<10>). 1055The default value for the C<recurse> request parameter (default: C<10>).
939 1056
… …
978sub parse_date($) { 1095sub parse_date($) {
979 my ($date) = @_; 1096 my ($date) = @_;
980 1097
981 my ($d, $m, $y, $H, $M, $S); 1098 my ($d, $m, $y, $H, $M, $S);
982 1099
983 if ($date =~ /^[A-Z][a-z][a-z], ([0-9][0-9])[\- ]([A-Z][a-z][a-z])[\- ]([0-9][0-9][0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) { 1100 if ($date =~ /^[A-Z][a-z][a-z]+, ([0-9][0-9]?)[\- ]([A-Z][a-z][a-z])[\- ]([0-9][0-9][0-9][0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) GMT$/) {
984 # RFC 822/1123, required by RFC 2616 (with " ") 1101 # RFC 822/1123, required by RFC 2616 (with " ")
985 # cookie dates (with "-") 1102 # cookie dates (with "-")
986 1103
987 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6); 1104 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
988 1105
989 } elsif ($date =~ /^[A-Z][a-z]+, ([0-9][0-9])-([A-Z][a-z][a-z])-([0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) { 1106 } elsif ($date =~ /^[A-Z][a-z][a-z]+, ([0-9][0-9]?)-([A-Z][a-z][a-z])-([0-9][0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) GMT$/) {
990 # RFC 850 1107 # RFC 850
991 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6); 1108 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
992 1109
993 } elsif ($date =~ /^[A-Z][a-z][a-z] ([A-Z][a-z][a-z]) ([0-9 ][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) ([0-9][0-9][0-9][0-9])$/) { 1110 } elsif ($date =~ /^[A-Z][a-z][a-z]+ ([A-Z][a-z][a-z]) ([0-9 ]?[0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) ([0-9][0-9][0-9][0-9])$/) {
994 # ISO C's asctime 1111 # ISO C's asctime
995 ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5); 1112 ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
996 } 1113 }
997 # other formats fail in the loop below 1114 # other formats fail in the loop below
998 1115

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