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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC vs.
Revision 1.82 by root, Sun Jan 2 04:50:40 2011 UTC

… …
122 122
123If the server sends a header multiple times, then their contents will be 123If the server sends a header multiple times, then their contents will be
124joined together with a comma (C<,>), as per the HTTP spec. 124joined together with a comma (C<,>), as per the HTTP spec.
125 125
126If an internal error occurs, such as not being able to resolve a hostname, 126If an internal error occurs, such as not being able to resolve a hostname,
127then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x> 127then C<$data> will be C<undef>, C<< $headers->{Status} >> will be
128(usually C<599>) and the C<Reason> pseudo-header will contain an error 128C<590>-C<599> and the C<Reason> pseudo-header will contain an error
129message. 129message. Currently the following status codes are used:
130
131=over 4
132
133=item 595 - errors during connection etsbalishment, proxy handshake.
134
135=item 596 - errors during TLS negotiation, request sending and header processing.
136
137=item 597 - errors during body receiving or processing.
138
139=item 598 - user aborted request via C<on_header> or C<on_body>.
140
141=item 599 - other, usually nonretryable, errors (garbled URL etc.).
142
143=back
130 144
131A typical callback might look like this: 145A typical callback might look like this:
132 146
133 sub { 147 sub {
134 my ($body, $hdr) = @_; 148 my ($body, $hdr) = @_;
… …
182=item cookie_jar => $hash_ref 196=item cookie_jar => $hash_ref
183 197
184Passing this parameter enables (simplified) cookie-processing, loosely 198Passing this parameter enables (simplified) cookie-processing, loosely
185based on the original netscape specification. 199based on the original netscape specification.
186 200
187The C<$hash_ref> must be an (initially empty) hash reference which will 201The C<$hash_ref> must be an (initially empty) hash reference which
188get updated automatically. It is possible to save the cookie jar to 202will get updated automatically. It is possible to save the cookie jar
189persistent storage with something like JSON or Storable, but this is not 203to persistent storage with something like JSON or Storable - see the
190recommended, as session-only cookies might survive longer than expected. 204C<AnyEvent::HTTP::cookie_jar_expire> function if you wish to remove
205expired or session-only cookies, and also for documentation on the format
206of the cookie jar.
191 207
192Note that this cookie implementation is not meant to be complete. If 208Note that this cookie implementation is not meant to be complete. If
193you want complete cookie management you have to do that on your 209you 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 210own. 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 211working. Cookies are a privacy disaster, do not use them unless required
196to. 212to.
197 213
198When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:> 214When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
199headers will be set and handled by this module, otherwise they will be 215headers will be set and handled by this module, otherwise they will be
… …
364 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 380 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
365 381
366 _slot_schedule $_[0]; 382 _slot_schedule $_[0];
367} 383}
368 384
385#############################################################################
386
387# expire cookies
388sub cookie_jar_expire($;$) {
389 my ($jar, $session_end) = @_;
390
391 %$jar = () if $jar->{version} != 1;
392
393 my $anow = AE::now;
394
395 while (my ($chost, $paths) = each %$jar) {
396 next unless ref $paths;
397
398 while (my ($cpath, $cookies) = each %$paths) {
399 while (my ($cookie, $kv) = each %$cookies) {
400 if (exists $kv->{_expires}) {
401 delete $cookies->{$cookie}
402 if $anow > $kv->{_expires};
403 } elsif ($session_end) {
404 delete $cookies->{$cookie};
405 }
406 }
407
408 delete $paths->{$cpath}
409 unless %$cookies;
410 }
411
412 delete $jar->{$chost}
413 unless %$paths;
414 }
415}
416
417# extract cookies from jar
369sub cookie_jar_extract($$$$) { 418sub cookie_jar_extract($$$$) {
370 my ($jar, $uscheme, $uhost, $upath) = @_; 419 my ($jar, $uscheme, $uhost, $upath) = @_;
371 420
372 %$jar = () if $jar->{version} != 1; 421 %$jar = () if $jar->{version} != 1;
373 422
… …
388 next unless $cpath eq substr $upath, 0, length $cpath; 437 next unless $cpath eq substr $upath, 0, length $cpath;
389 438
390 while (my ($cookie, $kv) = each %$cookies) { 439 while (my ($cookie, $kv) = each %$cookies) {
391 next if $uscheme ne "https" && exists $kv->{secure}; 440 next if $uscheme ne "https" && exists $kv->{secure};
392 441
393 if (exists $kv->{expires}) { 442 if (exists $kv->{_expires} and AE::now > $kv->{_expires}) {
394 if (AE::now > parse_date ($kv->{expires})) {
395 delete $cookies->{$cookie}; 443 delete $cookies->{$cookie};
396 next; 444 next;
397 }
398 } 445 }
399 446
400 my $value = $kv->{value}; 447 my $value = $kv->{value};
401 448
402 if ($value =~ /[=;,[:space:]]/) { 449 if ($value =~ /[=;,[:space:]]/) {
… …
410 } 457 }
411 458
412 \@cookies 459 \@cookies
413} 460}
414 461
462# parse set_cookie header into jar
463sub cookie_jar_set_cookie($$$$) {
464 my ($jar, $set_cookie, $uhost, $date) = @_;
465
466 my $anow = int AE::now;
467 my $snow; # server-now
468
469 for ($set_cookie) {
470 # parse NAME=VALUE
471 my @kv;
472
473 # expires is not http-compliant in the original cookie-spec,
474 # we support the official date format and some extensions
475 while (
476 m{
477 \G\s*
478 (?:
479 expires \s*=\s* ([A-Z][a-z][a-z]+,\ [^,;]+)
480 | ([^=;,[:space:]]+) (?: \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) )?
481 )
482 }gcxsi
483 ) {
484 my $name = $2;
485 my $value = $4;
486
487 if (defined $1) {
488 # expires
489 $name = "expires";
490 $value = $1;
491 } elsif (defined $3) {
492 # quoted
493 $value = $3;
494 $value =~ s/\\(.)/$1/gs;
495 }
496
497 push @kv, lc $name, $value;
498
499 last unless /\G\s*;/gc;
500 }
501
502 last unless @kv;
503
504 my $name = shift @kv;
505 my %kv = (value => shift @kv, @kv);
506
507 if (exists $kv{"max-age"}) {
508 $kv{_expires} = $anow + delete $kv{"max-age"};
509 } elsif (exists $kv{expires}) {
510 $snow ||= parse_date ($date) || $anow;
511 $kv{_expires} = $anow + (parse_date (delete $kv{expires}) - $snow);
512 } else {
513 delete $kv{_expires};
514 }
515
516 my $cdom;
517 my $cpath = (delete $kv{path}) || "/";
518
519 if (exists $kv{domain}) {
520 $cdom = delete $kv{domain};
521
522 $cdom =~ s/^\.?/./; # make sure it starts with a "."
523
524 next if $cdom =~ /\.$/;
525
526 # this is not rfc-like and not netscape-like. go figure.
527 my $ndots = $cdom =~ y/.//;
528 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
529 } else {
530 $cdom = $uhost;
531 }
532
533 # store it
534 $jar->{version} = 1;
535 $jar->{$cdom}{$cpath}{$name} = \%kv;
536
537 redo if /\G\s*,/gc;
538 }
539}
540
415# continue to parse $_ for headers and place them into the arg 541# continue to parse $_ for headers and place them into the arg
416sub parse_hdr() { 542sub parse_hdr() {
417 my %hdr; 543 my %hdr;
418 544
419 # things seen, not parsed: 545 # things seen, not parsed:
… …
531 _get_slot $uhost, sub { 657 _get_slot $uhost, sub {
532 $state{slot_guard} = shift; 658 $state{slot_guard} = shift;
533 659
534 return unless $state{connect_guard}; 660 return unless $state{connect_guard};
535 661
662 my $ae_error = 595; # connecting
663
664 # handle actual, non-tunneled, request
665 my $handle_actual_request = sub {
666 $ae_error = 596; # request phase
667
668 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
669
670 # send request
671 $state{handle}->push_write (
672 "$method $rpath HTTP/1.1\015\012"
673 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
674 . "\015\012"
675 . (delete $arg{body})
676 );
677
678 # return if error occured during push_write()
679 return unless %state;
680
681 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
682
683 # status line and headers
684 $state{read_response} = sub {
685 for ("$_[1]") {
686 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
687
688 /^HTTP\/0*([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/gxci
689 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
690
691 # 100 Continue handling
692 # should not happen as we don't send expect: 100-continue,
693 # but we handle it just in case.
694 # since we send the request body regardless, if we get an error
695 # we are out of-sync, which we currently do NOT handle correctly.
696 return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
697 if $2 eq 100;
698
699 push @pseudo,
700 HTTPVersion => $1,
701 Status => $2,
702 Reason => $3,
703 ;
704
705 my $hdr = parse_hdr
706 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
707
708 %hdr = (%$hdr, @pseudo);
709 }
710
711 # redirect handling
712 # microsoft and other shitheads don't give a shit for following standards,
713 # try to support some common forms of broken Location headers.
714 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
715 $hdr{location} =~ s/^\.\/+//;
716
717 my $url = "$rscheme://$uhost:$uport";
718
719 unless ($hdr{location} =~ s/^\///) {
720 $url .= $upath;
721 $url =~ s/\/[^\/]*$//;
722 }
723
724 $hdr{location} = "$url/$hdr{location}";
725 }
726
727 my $redirect;
728
729 if ($recurse) {
730 my $status = $hdr{Status};
731
732 # industry standard is to redirect POST as GET for
733 # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
734 # also, the UA should ask the user for 301 and 307 and POST,
735 # industry standard seems to be to simply follow.
736 # we go with the industry standard.
737 if ($status == 301 or $status == 302 or $status == 303) {
738 # HTTP/1.1 is unclear on how to mutate the method
739 $method = "GET" unless $method eq "HEAD";
740 $redirect = 1;
741 } elsif ($status == 307) {
742 $redirect = 1;
743 }
744 }
745
746 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
747 my $may_keep_alive = $_[3];
748
749 $state{handle}->destroy if $state{handle};
750 %state = ();
751
752 if (defined $_[1]) {
753 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
754 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
755 }
756
757 # set-cookie processing
758 if ($arg{cookie_jar}) {
759 cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date};
760 }
761
762 if ($redirect && exists $hdr{location}) {
763 # we ignore any errors, as it is very common to receive
764 # Content-Length != 0 but no actual body
765 # we also access %hdr, as $_[1] might be an erro
766 http_request (
767 $method => $hdr{location},
768 %arg,
769 recurse => $recurse - 1,
770 Redirect => [$_[0], \%hdr],
771 $cb);
772 } else {
773 $cb->($_[0], \%hdr);
774 }
775 };
776
777 $ae_error = 597; # body phase
778
779 my $len = $hdr{"content-length"};
780
781 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
782 $finish->(undef, 598 => "Request cancelled by on_header");
783 } elsif (
784 $hdr{Status} =~ /^(?:1..|204|205|304)$/
785 or $method eq "HEAD"
786 or (defined $len && !$len)
787 ) {
788 # no body
789 $finish->("", undef, undef, 1);
790 } else {
791 # body handling, many different code paths
792 # - no body expected
793 # - want_body_handle
794 # - te chunked
795 # - 2x length known (with or without on_body)
796 # - 2x length not known (with or without on_body)
797 if (!$redirect && $arg{want_body_handle}) {
798 $_[0]->on_eof (undef);
799 $_[0]->on_error (undef);
800 $_[0]->on_read (undef);
801
802 $finish->(delete $state{handle});
803
804 } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
805 my $cl = 0;
806 my $body = undef;
807 my $on_body = $arg{on_body} || sub { $body .= shift; 1 };
808
809 $state{read_chunk} = sub {
810 $_[1] =~ /^([0-9a-fA-F]+)/
811 or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
812
813 my $len = hex $1;
814
815 if ($len) {
816 $cl += $len;
817
818 $_[0]->push_read (chunk => $len, sub {
819 $on_body->($_[1], \%hdr)
820 or return $finish->(undef, 598 => "Request cancelled by on_body");
821
822 $_[0]->push_read (line => sub {
823 length $_[1]
824 and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
825 $_[0]->push_read (line => $state{read_chunk});
826 });
827 });
828 } else {
829 $hdr{"content-length"} ||= $cl;
830
831 $_[0]->push_read (line => $qr_nlnl, sub {
832 if (length $_[1]) {
833 for ("$_[1]") {
834 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
835
836 my $hdr = parse_hdr
837 or return $finish->(undef, $ae_error => "Garbled response trailers");
838
839 %hdr = (%hdr, %$hdr);
840 }
841 }
842
843 $finish->($body, undef, undef, 1);
844 });
845 }
846 };
847
848 $_[0]->push_read (line => $state{read_chunk});
849
850 } elsif ($arg{on_body}) {
851 if ($len) {
852 $_[0]->on_read (sub {
853 $len -= length $_[0]{rbuf};
854
855 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
856 or return $finish->(undef, 598 => "Request cancelled by on_body");
857
858 $len > 0
859 or $finish->("", undef, undef, 1);
860 });
861 } else {
862 $_[0]->on_eof (sub {
863 $finish->("");
864 });
865 $_[0]->on_read (sub {
866 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
867 or $finish->(undef, 598 => "Request cancelled by on_body");
868 });
869 }
870 } else {
871 $_[0]->on_eof (undef);
872
873 if ($len) {
874 $_[0]->on_read (sub {
875 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
876 if $len <= length $_[0]{rbuf};
877 });
878 } else {
879 $_[0]->on_error (sub {
880 ($! == Errno::EPIPE || !$!)
881 ? $finish->(delete $_[0]{rbuf})
882 : $finish->(undef, $ae_error => $_[2]);
883 });
884 $_[0]->on_read (sub { });
885 }
886 }
887 }
888 };
889
890 $state{handle}->push_read (line => $qr_nlnl, $state{read_response});
891 };
892
536 my $connect_cb = sub { 893 my $connect_cb = sub {
537 $state{fh} = shift 894 $state{fh} = shift
538 or do { 895 or do {
539 my $err = "$!"; 896 my $err = "$!";
540 %state = (); 897 %state = ();
541 return $cb->(undef, { @pseudo, Status => 599, Reason => $err }); 898 return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
542 }; 899 };
543
544 pop; # free memory, save a tree
545 900
546 return unless delete $state{connect_guard}; 901 return unless delete $state{connect_guard};
547 902
548 # get handle 903 # get handle
549 $state{handle} = new AnyEvent::Handle 904 $state{handle} = new AnyEvent::Handle
… …
552 tls_ctx => $arg{tls_ctx}, 907 tls_ctx => $arg{tls_ctx},
553 # these need to be reconfigured on keepalive handles 908 # these need to be reconfigured on keepalive handles
554 timeout => $timeout, 909 timeout => $timeout,
555 on_error => sub { 910 on_error => sub {
556 %state = (); 911 %state = ();
557 $cb->(undef, { @pseudo, Status => 599, Reason => $_[2] }); 912 $cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
558 }, 913 },
559 on_eof => sub { 914 on_eof => sub {
560 %state = (); 915 %state = ();
561 $cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" }); 916 $cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
562 }, 917 },
563 ; 918 ;
564 919
565 # limit the number of persistent connections 920 # limit the number of persistent connections
566 # keepalive not yet supported 921 # keepalive not yet supported
… …
572# $hdr{connection} = "keep-alive"; 927# $hdr{connection} = "keep-alive";
573# } 928# }
574 929
575 $state{handle}->starttls ("connect") if $rscheme eq "https"; 930 $state{handle}->starttls ("connect") if $rscheme eq "https";
576 931
577 # handle actual, non-tunneled, request
578 my $handle_actual_request = sub {
579 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
580
581 # send request
582 $state{handle}->push_write (
583 "$method $rpath HTTP/1.1\015\012"
584 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
585 . "\015\012"
586 . (delete $arg{body})
587 );
588
589 # return if error occured during push_write()
590 return unless %state;
591
592 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
593
594 # status line and headers
595 $state{read_response} = sub {
596 for ("$_[1]") {
597 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
598
599 /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
600 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
601
602 # 100 Continue handling
603 # should not happen as we don't send expect: 100-continue,
604 # but we handle it just in case.
605 # since we send the request body regardless, if we get an error
606 # we are out of-sync, which we currently do NOT handle correctly.
607 return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
608 if $2 eq 100;
609
610 push @pseudo,
611 HTTPVersion => $1,
612 Status => $2,
613 Reason => $3,
614 ;
615
616 my $hdr = parse_hdr
617 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
618
619 %hdr = (%$hdr, @pseudo);
620 }
621
622 # redirect handling
623 # microsoft and other shitheads don't give a shit for following standards,
624 # try to support some common forms of broken Location headers.
625 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
626 $hdr{location} =~ s/^\.\/+//;
627
628 my $url = "$rscheme://$uhost:$uport";
629
630 unless ($hdr{location} =~ s/^\///) {
631 $url .= $upath;
632 $url =~ s/\/[^\/]*$//;
633 }
634
635 $hdr{location} = "$url/$hdr{location}";
636 }
637
638 my $redirect;
639
640 if ($recurse) {
641 my $status = $hdr{Status};
642
643 # industry standard is to redirect POST as GET for
644 # 301, 302 and 303, in contrast to http/1.0 and 1.1.
645 # also, the UA should ask the user for 301 and 307 and POST,
646 # industry standard seems to be to simply follow.
647 # we go with the industry standard.
648 if ($status == 301 or $status == 302 or $status == 303) {
649 # HTTP/1.1 is unclear on how to mutate the method
650 $method = "GET" unless $method eq "HEAD";
651 $redirect = 1;
652 } elsif ($status == 307) {
653 $redirect = 1;
654 }
655 }
656
657 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
658 my $keepalive = pop;
659
660 $state{handle}->destroy if $state{handle};
661 %state = ();
662
663 if (defined $_[1]) {
664 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
665 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
666 }
667
668 # set-cookie processing
669 if ($arg{cookie_jar}) {
670 for ($hdr{"set-cookie"}) {
671 # parse NAME=VALUE
672 my @kv;
673
674 while (
675 m{
676 \G\s*
677 (?:
678 expires \s*=\s* ([A-Z][a-z][a-z],\ [^,;]+)
679 | ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )
680 )
681 }gcxsi
682 ) {
683 my $name = $2;
684 my $value = $4;
685
686 unless (defined $name) {
687 # expires
688 $name = "expires";
689 $value = $1;
690 } elsif (!defined $value) {
691 # quoted
692 $value = $3;
693 $value =~ s/\\(.)/$1/gs;
694 }
695
696 push @kv, lc $name, $value;
697
698 last unless /\G\s*;/gc;
699 }
700
701 last unless @kv;
702
703 my $name = shift @kv;
704 my %kv = (value => shift @kv, @kv);
705
706 $kv{expires} ||= format_date (AE::now + $kv{"max-age"})
707 if exists $kv{"max-age"};
708
709 my $cdom;
710 my $cpath = (delete $kv{path}) || "/";
711
712 if (exists $kv{domain}) {
713 $cdom = delete $kv{domain};
714
715 $cdom =~ s/^\.?/./; # make sure it starts with a "."
716
717 next if $cdom =~ /\.$/;
718
719 # this is not rfc-like and not netscape-like. go figure.
720 my $ndots = $cdom =~ y/.//;
721 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
722 } else {
723 $cdom = $uhost;
724 }
725
726 # store it
727 $arg{cookie_jar}{version} = 1;
728 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
729
730 redo if /\G\s*,/gc;
731 }
732 }
733
734 if ($redirect && exists $hdr{location}) {
735 # we ignore any errors, as it is very common to receive
736 # Content-Length != 0 but no actual body
737 # we also access %hdr, as $_[1] might be an erro
738 http_request (
739 $method => $hdr{location},
740 %arg,
741 recurse => $recurse - 1,
742 Redirect => [$_[0], \%hdr],
743 $cb);
744 } else {
745 $cb->($_[0], \%hdr);
746 }
747 };
748
749 my $len = $hdr{"content-length"};
750
751 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
752 $finish->(undef, 598 => "Request cancelled by on_header");
753 } elsif (
754 $hdr{Status} =~ /^(?:1..|204|205|304)$/
755 or $method eq "HEAD"
756 or (defined $len && !$len)
757 ) {
758 # no body
759 $finish->("", undef, undef, 1);
760 } else {
761 # body handling, many different code paths
762 # - no body expected
763 # - want_body_handle
764 # - te chunked
765 # - 2x length known (with or without on_body)
766 # - 2x length not known (with or without on_body)
767 if (!$redirect && $arg{want_body_handle}) {
768 $_[0]->on_eof (undef);
769 $_[0]->on_error (undef);
770 $_[0]->on_read (undef);
771
772 $finish->(delete $state{handle});
773
774 } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
775 my $cl = 0;
776 my $body = undef;
777 my $on_body = $arg{on_body} || sub { $body .= shift; 1 };
778
779 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
780
781 my $read_chunk; $read_chunk = sub {
782 $_[1] =~ /^([0-9a-fA-F]+)/
783 or $finish->(undef, 599 => "Garbled chunked transfer encoding");
784
785 my $len = hex $1;
786
787 if ($len) {
788 $cl += $len;
789
790 $_[0]->push_read (chunk => $len, sub {
791 $on_body->($_[1], \%hdr)
792 or return $finish->(undef, 598 => "Request cancelled by on_body");
793
794 $_[0]->push_read (line => sub {
795 length $_[1]
796 and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
797 $_[0]->push_read (line => $read_chunk);
798 });
799 });
800 } else {
801 $hdr{"content-length"} ||= $cl;
802
803 $_[0]->push_read (line => $qr_nlnl, sub {
804 if (length $_[1]) {
805 for ("$_[1]") {
806 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
807
808 my $hdr = parse_hdr
809 or return $finish->(undef, 599 => "Garbled response trailers");
810
811 %hdr = (%hdr, %$hdr);
812 }
813 }
814
815 $finish->($body, undef, undef, 1);
816 });
817 }
818 };
819
820 $_[0]->push_read (line => $read_chunk);
821
822 } elsif ($arg{on_body}) {
823 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
824
825 if ($len) {
826 $_[0]->on_read (sub {
827 $len -= length $_[0]{rbuf};
828
829 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
830 or return $finish->(undef, 598 => "Request cancelled by on_body");
831
832 $len > 0
833 or $finish->("", undef, undef, 1);
834 });
835 } else {
836 $_[0]->on_eof (sub {
837 $finish->("");
838 });
839 $_[0]->on_read (sub {
840 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
841 or $finish->(undef, 598 => "Request cancelled by on_body");
842 });
843 }
844 } else {
845 $_[0]->on_eof (undef);
846
847 if ($len) {
848 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
849 $_[0]->on_read (sub {
850 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
851 if $len <= length $_[0]{rbuf};
852 });
853 } else {
854 $_[0]->on_error (sub {
855 ($! == Errno::EPIPE || !$!)
856 ? $finish->(delete $_[0]{rbuf})
857 : $finish->(undef, 599 => $_[2]);
858 });
859 $_[0]->on_read (sub { });
860 }
861 }
862 }
863 };
864
865 $state{handle}->push_read (line => $qr_nlnl, $state{read_response});
866 };
867
868 # now handle proxy-CONNECT method 932 # now handle proxy-CONNECT method
869 if ($proxy && $uscheme eq "https") { 933 if ($proxy && $uscheme eq "https") {
870 # oh dear, we have to wrap it into a connect request 934 # oh dear, we have to wrap it into a connect request
871 935
872 # maybe re-use $uauthority with patched port? 936 # maybe re-use $uauthority with patched port?
… …
875 $_[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
876 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])" }));
877 941
878 if ($2 == 200) { 942 if ($2 == 200) {
879 $rpath = $upath; 943 $rpath = $upath;
880 &$handle_actual_request; 944 $handle_actual_request->();
881 } else { 945 } else {
882 %state = (); 946 %state = ();
883 $cb->(undef, { @pseudo, Status => $2, Reason => $3 }); 947 $cb->(undef, { @pseudo, Status => $2, Reason => $3 });
884 } 948 }
885 }); 949 });
886 } else { 950 } else {
887 &$handle_actual_request; 951 $handle_actual_request->();
888 } 952 }
889 }; 953 };
890 954
891 my $tcp_connect = $arg{tcp_connect} 955 my $tcp_connect = $arg{tcp_connect}
892 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect }; 956 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
893 957
894 $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 });
895
896 }; 959 };
897 960
898 defined wantarray && AnyEvent::Util::guard { %state = () } 961 defined wantarray && AnyEvent::Util::guard { %state = () }
899} 962}
900 963
… …
935string of the form C<http://host:port> (optionally C<https:...>), croaks 998string of the form C<http://host:port> (optionally C<https:...>), croaks
936otherwise. 999otherwise.
937 1000
938To clear an already-set proxy, use C<undef>. 1001To clear an already-set proxy, use C<undef>.
939 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
940=item $date = AnyEvent::HTTP::format_date $timestamp 1042=item $date = AnyEvent::HTTP::format_date $timestamp
941 1043
942Takes 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
943Date (RFC 2616). 1045Date (RFC 2616).
944 1046
945=item $timestamp = AnyEvent::HTTP::parse_date $date 1047=item $timestamp = AnyEvent::HTTP::parse_date $date
946 1048
947Takes 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
948returns the corresponding POSIX timestamp, or C<undef> if the date cannot 1050bunch of minor variations of those, and returns the corresponding POSIX
949be parsed. 1051timestamp, or C<undef> if the date cannot be parsed.
950 1052
951=item $AnyEvent::HTTP::MAX_RECURSE 1053=item $AnyEvent::HTTP::MAX_RECURSE
952 1054
953The default value for the C<recurse> request parameter (default: C<10>). 1055The default value for the C<recurse> request parameter (default: C<10>).
954 1056
… …
993sub parse_date($) { 1095sub parse_date($) {
994 my ($date) = @_; 1096 my ($date) = @_;
995 1097
996 my ($d, $m, $y, $H, $M, $S); 1098 my ($d, $m, $y, $H, $M, $S);
997 1099
998 if ($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$/) {
999 # RFC 822/1123, required by RFC 2616 (with " ") 1101 # RFC 822/1123, required by RFC 2616 (with " ")
1000 # cookie dates (with "-") 1102 # cookie dates (with "-")
1001 1103
1002 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6); 1104 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
1003 1105
1004 } elsif ($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$/) {
1005 # RFC 850 1107 # RFC 850
1006 ($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, $6);
1007 1109
1008 } elsif ($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])$/) {
1009 # ISO C's asctime 1111 # ISO C's asctime
1010 ($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);
1011 } 1113 }
1012 # other formats fail in the loop below 1114 # other formats fail in the loop below
1013 1115

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