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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.76 by root, Sat Jan 1 02:20:49 2011 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
369# extract cookies from jar 416# extract cookies from jar
370sub cookie_jar_extract($$$$) { 417sub cookie_jar_extract($$$$) {
371 my ($jar, $uscheme, $uhost, $upath) = @_; 418 my ($jar, $uscheme, $uhost, $upath) = @_;
419
420 $uhost = lc $uhost;
372 421
373 %$jar = () if $jar->{version} != 1; 422 %$jar = () if $jar->{version} != 1;
374 423
375 my @cookies; 424 my @cookies;
376 425
… …
389 next unless $cpath eq substr $upath, 0, length $cpath; 438 next unless $cpath eq substr $upath, 0, length $cpath;
390 439
391 while (my ($cookie, $kv) = each %$cookies) { 440 while (my ($cookie, $kv) = each %$cookies) {
392 next if $uscheme ne "https" && exists $kv->{secure}; 441 next if $uscheme ne "https" && exists $kv->{secure};
393 442
394 if (exists $kv->{expires}) { 443 if (exists $kv->{_expires} and AE::now > $kv->{_expires}) {
395 if (AE::now > parse_date ($kv->{expires})) {
396 delete $cookies->{$cookie}; 444 delete $cookies->{$cookie};
397 next; 445 next;
398 }
399 } 446 }
400 447
401 my $value = $kv->{value}; 448 my $value = $kv->{value};
402 449
403 if ($value =~ /[=;,[:space:]]/) { 450 if ($value =~ /[=;,[:space:]]/) {
… …
412 459
413 \@cookies 460 \@cookies
414} 461}
415 462
416# parse set_cookie header into jar 463# parse set_cookie header into jar
417sub cookie_jar_set_cookie($$$) { 464sub cookie_jar_set_cookie($$$$) {
418 my ($jar, $set_cookie, $uhost) = @_; 465 my ($jar, $set_cookie, $uhost, $date) = @_;
466
467 my $anow = int AE::now;
468 my $snow; # server-now
419 469
420 for ($set_cookie) { 470 for ($set_cookie) {
421 # parse NAME=VALUE 471 # parse NAME=VALUE
422 my @kv; 472 my @kv;
423 473
474 # expires is not http-compliant in the original cookie-spec,
475 # we support the official date format and some extensions
424 while ( 476 while (
425 m{ 477 m{
426 \G\s* 478 \G\s*
427 (?: 479 (?:
428 expires \s*=\s* ([A-Z][a-z][a-z],\ [^,;]+) 480 expires \s*=\s* ([A-Z][a-z][a-z]+,\ [^,;]+)
429 | ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) 481 | ([^=;,[:space:]]+) (?: \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) )?
430 ) 482 )
431 }gcxsi 483 }gcxsi
432 ) { 484 ) {
433 my $name = $2; 485 my $name = $2;
434 my $value = $4; 486 my $value = $4;
435 487
436 unless (defined $name) { 488 if (defined $1) {
437 # expires 489 # expires
438 $name = "expires"; 490 $name = "expires";
439 $value = $1; 491 $value = $1;
440 } elsif (!defined $value) { 492 } elsif (defined $3) {
441 # quoted 493 # quoted
442 $value = $3; 494 $value = $3;
443 $value =~ s/\\(.)/$1/gs; 495 $value =~ s/\\(.)/$1/gs;
444 } 496 }
445 497
… …
451 last unless @kv; 503 last unless @kv;
452 504
453 my $name = shift @kv; 505 my $name = shift @kv;
454 my %kv = (value => shift @kv, @kv); 506 my %kv = (value => shift @kv, @kv);
455 507
456 $kv{expires} ||= format_date (AE::now + $kv{"max-age"})
457 if exists $kv{"max-age"}; 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 }
458 516
459 my $cdom; 517 my $cdom;
460 my $cpath = (delete $kv{path}) || "/"; 518 my $cpath = (delete $kv{path}) || "/";
461 519
462 if (exists $kv{domain}) { 520 if (exists $kv{domain}) {
… …
473 $cdom = $uhost; 531 $cdom = $uhost;
474 } 532 }
475 533
476 # store it 534 # store it
477 $jar->{version} = 1; 535 $jar->{version} = 1;
478 $jar->{$cdom}{$cpath}{$name} = \%kv; 536 $jar->{lc $cdom}{$cpath}{$name} = \%kv;
479 537
480 redo if /\G\s*,/gc; 538 redo if /\G\s*,/gc;
481 } 539 }
482} 540}
483 541
… …
600 _get_slot $uhost, sub { 658 _get_slot $uhost, sub {
601 $state{slot_guard} = shift; 659 $state{slot_guard} = shift;
602 660
603 return unless $state{connect_guard}; 661 return unless $state{connect_guard};
604 662
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
605 my $connect_cb = sub { 893 my $connect_cb = sub {
606 $state{fh} = shift 894 $state{fh} = shift
607 or do { 895 or do {
608 my $err = "$!"; 896 my $err = "$!";
609 %state = (); 897 %state = ();
610 return $cb->(undef, { @pseudo, Status => 599, Reason => $err }); 898 return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
611 }; 899 };
612 900
613 return unless delete $state{connect_guard}; 901 return unless delete $state{connect_guard};
614 902
615 # get handle 903 # get handle
… …
619 tls_ctx => $arg{tls_ctx}, 907 tls_ctx => $arg{tls_ctx},
620 # these need to be reconfigured on keepalive handles 908 # these need to be reconfigured on keepalive handles
621 timeout => $timeout, 909 timeout => $timeout,
622 on_error => sub { 910 on_error => sub {
623 %state = (); 911 %state = ();
624 $cb->(undef, { @pseudo, Status => 599, Reason => $_[2] }); 912 $cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
625 }, 913 },
626 on_eof => sub { 914 on_eof => sub {
627 %state = (); 915 %state = ();
628 $cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" }); 916 $cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
629 }, 917 },
630 ; 918 ;
631 919
632 # limit the number of persistent connections 920 # limit the number of persistent connections
633 # keepalive not yet supported 921 # keepalive not yet supported
… …
639# $hdr{connection} = "keep-alive"; 927# $hdr{connection} = "keep-alive";
640# } 928# }
641 929
642 $state{handle}->starttls ("connect") if $rscheme eq "https"; 930 $state{handle}->starttls ("connect") if $rscheme eq "https";
643 931
644 # handle actual, non-tunneled, request
645 my $handle_actual_request = sub {
646 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
647
648 # send request
649 $state{handle}->push_write (
650 "$method $rpath HTTP/1.1\015\012"
651 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
652 . "\015\012"
653 . (delete $arg{body})
654 );
655
656 # return if error occured during push_write()
657 return unless %state;
658
659 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
660
661 # status line and headers
662 $state{read_response} = sub {
663 for ("$_[1]") {
664 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
665
666 /^HTTP\/0*([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/gxci
667 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
668
669 # 100 Continue handling
670 # should not happen as we don't send expect: 100-continue,
671 # but we handle it just in case.
672 # since we send the request body regardless, if we get an error
673 # we are out of-sync, which we currently do NOT handle correctly.
674 return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
675 if $2 eq 100;
676
677 push @pseudo,
678 HTTPVersion => $1,
679 Status => $2,
680 Reason => $3,
681 ;
682
683 my $hdr = parse_hdr
684 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
685
686 %hdr = (%$hdr, @pseudo);
687 }
688
689 # redirect handling
690 # microsoft and other shitheads don't give a shit for following standards,
691 # try to support some common forms of broken Location headers.
692 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
693 $hdr{location} =~ s/^\.\/+//;
694
695 my $url = "$rscheme://$uhost:$uport";
696
697 unless ($hdr{location} =~ s/^\///) {
698 $url .= $upath;
699 $url =~ s/\/[^\/]*$//;
700 }
701
702 $hdr{location} = "$url/$hdr{location}";
703 }
704
705 my $redirect;
706
707 if ($recurse) {
708 my $status = $hdr{Status};
709
710 # industry standard is to redirect POST as GET for
711 # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
712 # also, the UA should ask the user for 301 and 307 and POST,
713 # industry standard seems to be to simply follow.
714 # we go with the industry standard.
715 if ($status == 301 or $status == 302 or $status == 303) {
716 # HTTP/1.1 is unclear on how to mutate the method
717 $method = "GET" unless $method eq "HEAD";
718 $redirect = 1;
719 } elsif ($status == 307) {
720 $redirect = 1;
721 }
722 }
723
724 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
725 my $may_keep_alive = $_[3];
726
727 $state{handle}->destroy if $state{handle};
728 %state = ();
729
730 if (defined $_[1]) {
731 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
732 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
733 }
734
735 # set-cookie processing
736 if ($arg{cookie_jar}) {
737 cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost;
738 }
739
740 if ($redirect && exists $hdr{location}) {
741 # we ignore any errors, as it is very common to receive
742 # Content-Length != 0 but no actual body
743 # we also access %hdr, as $_[1] might be an erro
744 http_request (
745 $method => $hdr{location},
746 %arg,
747 recurse => $recurse - 1,
748 Redirect => [$_[0], \%hdr],
749 $cb);
750 } else {
751 $cb->($_[0], \%hdr);
752 }
753 };
754
755 my $len = $hdr{"content-length"};
756
757 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
758 $finish->(undef, 598 => "Request cancelled by on_header");
759 } elsif (
760 $hdr{Status} =~ /^(?:1..|204|205|304)$/
761 or $method eq "HEAD"
762 or (defined $len && !$len)
763 ) {
764 # no body
765 $finish->("", undef, undef, 1);
766 } else {
767 # body handling, many different code paths
768 # - no body expected
769 # - want_body_handle
770 # - te chunked
771 # - 2x length known (with or without on_body)
772 # - 2x length not known (with or without on_body)
773 if (!$redirect && $arg{want_body_handle}) {
774 $_[0]->on_eof (undef);
775 $_[0]->on_error (undef);
776 $_[0]->on_read (undef);
777
778 $finish->(delete $state{handle});
779
780 } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
781 my $cl = 0;
782 my $body = undef;
783 my $on_body = $arg{on_body} || sub { $body .= shift; 1 };
784
785 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
786
787 my $read_chunk; $read_chunk = sub {
788 $_[1] =~ /^([0-9a-fA-F]+)/
789 or $finish->(undef, 599 => "Garbled chunked transfer encoding");
790
791 my $len = hex $1;
792
793 if ($len) {
794 $cl += $len;
795
796 $_[0]->push_read (chunk => $len, sub {
797 $on_body->($_[1], \%hdr)
798 or return $finish->(undef, 598 => "Request cancelled by on_body");
799
800 $_[0]->push_read (line => sub {
801 length $_[1]
802 and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
803 $_[0]->push_read (line => $read_chunk);
804 });
805 });
806 } else {
807 $hdr{"content-length"} ||= $cl;
808
809 $_[0]->push_read (line => $qr_nlnl, sub {
810 if (length $_[1]) {
811 for ("$_[1]") {
812 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
813
814 my $hdr = parse_hdr
815 or return $finish->(undef, 599 => "Garbled response trailers");
816
817 %hdr = (%hdr, %$hdr);
818 }
819 }
820
821 $finish->($body, undef, undef, 1);
822 });
823 }
824 };
825
826 $_[0]->push_read (line => $read_chunk);
827
828 } elsif ($arg{on_body}) {
829 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
830
831 if ($len) {
832 $_[0]->on_read (sub {
833 $len -= length $_[0]{rbuf};
834
835 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
836 or return $finish->(undef, 598 => "Request cancelled by on_body");
837
838 $len > 0
839 or $finish->("", undef, undef, 1);
840 });
841 } else {
842 $_[0]->on_eof (sub {
843 $finish->("");
844 });
845 $_[0]->on_read (sub {
846 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
847 or $finish->(undef, 598 => "Request cancelled by on_body");
848 });
849 }
850 } else {
851 $_[0]->on_eof (undef);
852
853 if ($len) {
854 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
855 $_[0]->on_read (sub {
856 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
857 if $len <= length $_[0]{rbuf};
858 });
859 } else {
860 $_[0]->on_error (sub {
861 ($! == Errno::EPIPE || !$!)
862 ? $finish->(delete $_[0]{rbuf})
863 : $finish->(undef, 599 => $_[2]);
864 });
865 $_[0]->on_read (sub { });
866 }
867 }
868 }
869 };
870
871 $state{handle}->push_read (line => $qr_nlnl, $state{read_response});
872 };
873
874 # now handle proxy-CONNECT method 932 # now handle proxy-CONNECT method
875 if ($proxy && $uscheme eq "https") { 933 if ($proxy && $uscheme eq "https") {
876 # oh dear, we have to wrap it into a connect request 934 # oh dear, we have to wrap it into a connect request
877 935
878 # maybe re-use $uauthority with patched port? 936 # maybe re-use $uauthority with patched port?
… …
881 $_[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
882 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])" }));
883 941
884 if ($2 == 200) { 942 if ($2 == 200) {
885 $rpath = $upath; 943 $rpath = $upath;
886 &$handle_actual_request; 944 $handle_actual_request->();
887 } else { 945 } else {
888 %state = (); 946 %state = ();
889 $cb->(undef, { @pseudo, Status => $2, Reason => $3 }); 947 $cb->(undef, { @pseudo, Status => $2, Reason => $3 });
890 } 948 }
891 }); 949 });
892 } else { 950 } else {
893 &$handle_actual_request; 951 $handle_actual_request->();
894 } 952 }
895 }; 953 };
896 954
897 my $tcp_connect = $arg{tcp_connect} 955 my $tcp_connect = $arg{tcp_connect}
898 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect }; 956 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
899 957
900 $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 });
901
902 }; 959 };
903 960
904 defined wantarray && AnyEvent::Util::guard { %state = () } 961 defined wantarray && AnyEvent::Util::guard { %state = () }
905} 962}
906 963
… …
941string of the form C<http://host:port> (optionally C<https:...>), croaks 998string of the form C<http://host:port> (optionally C<https:...>), croaks
942otherwise. 999otherwise.
943 1000
944To clear an already-set proxy, use C<undef>. 1001To clear an already-set proxy, use C<undef>.
945 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
946=item $date = AnyEvent::HTTP::format_date $timestamp 1042=item $date = AnyEvent::HTTP::format_date $timestamp
947 1043
948Takes 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
949Date (RFC 2616). 1045Date (RFC 2616).
950 1046
951=item $timestamp = AnyEvent::HTTP::parse_date $date 1047=item $timestamp = AnyEvent::HTTP::parse_date $date
952 1048
953Takes 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
954returns the corresponding POSIX timestamp, or C<undef> if the date cannot 1050bunch of minor variations of those, and returns the corresponding POSIX
955be parsed. 1051timestamp, or C<undef> if the date cannot be parsed.
956 1052
957=item $AnyEvent::HTTP::MAX_RECURSE 1053=item $AnyEvent::HTTP::MAX_RECURSE
958 1054
959The default value for the C<recurse> request parameter (default: C<10>). 1055The default value for the C<recurse> request parameter (default: C<10>).
960 1056
… …
999sub parse_date($) { 1095sub parse_date($) {
1000 my ($date) = @_; 1096 my ($date) = @_;
1001 1097
1002 my ($d, $m, $y, $H, $M, $S); 1098 my ($d, $m, $y, $H, $M, $S);
1003 1099
1004 if ($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$/) {
1005 # RFC 822/1123, required by RFC 2616 (with " ") 1101 # RFC 822/1123, required by RFC 2616 (with " ")
1006 # cookie dates (with "-") 1102 # cookie dates (with "-")
1007 1103
1008 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6); 1104 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
1009 1105
1010 } elsif ($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$/) {
1011 # RFC 850 1107 # RFC 850
1012 ($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, $6);
1013 1109
1014 } elsif ($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])$/) {
1015 # ISO C's asctime 1111 # ISO C's asctime
1016 ($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);
1017 } 1113 }
1018 # other formats fail in the loop below 1114 # other formats fail in the loop below
1019 1115

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