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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.73 by root, Fri Dec 31 21:00:36 2010 UTC vs.
Revision 1.83 by root, Sun Jan 2 05:02:28 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
369# extract cookies from jar 417# extract cookies from jar
370sub cookie_jar_extract($$$$) { 418sub cookie_jar_extract($$$$) {
371 my ($jar, $uscheme, $uhost, $upath) = @_; 419 my ($jar, $uscheme, $uhost, $upath) = @_;
420
421 $uhost = lc $uhost;
372 422
373 %$jar = () if $jar->{version} != 1; 423 %$jar = () if $jar->{version} != 1;
374 424
375 my @cookies; 425 my @cookies;
376 426
… …
389 next unless $cpath eq substr $upath, 0, length $cpath; 439 next unless $cpath eq substr $upath, 0, length $cpath;
390 440
391 while (my ($cookie, $kv) = each %$cookies) { 441 while (my ($cookie, $kv) = each %$cookies) {
392 next if $uscheme ne "https" && exists $kv->{secure}; 442 next if $uscheme ne "https" && exists $kv->{secure};
393 443
394 if (exists $kv->{expires}) { 444 if (exists $kv->{_expires} and AE::now > $kv->{_expires}) {
395 if (AE::now > parse_date ($kv->{expires})) {
396 delete $cookies->{$cookie}; 445 delete $cookies->{$cookie};
397 next; 446 next;
398 }
399 } 447 }
400 448
401 my $value = $kv->{value}; 449 my $value = $kv->{value};
402 450
403 if ($value =~ /[=;,[:space:]]/) { 451 if ($value =~ /[=;,[:space:]]/) {
… …
412 460
413 \@cookies 461 \@cookies
414} 462}
415 463
416# parse set_cookie header into jar 464# parse set_cookie header into jar
417sub cookie_jar_set_cookie($$$) { 465sub cookie_jar_set_cookie($$$$) {
418 my ($jar, $set_cookie, $uhost) = @_; 466 my ($jar, $set_cookie, $uhost, $date) = @_;
467
468 my $anow = int AE::now;
469 my $snow; # server-now
419 470
420 for ($set_cookie) { 471 for ($set_cookie) {
421 # parse NAME=VALUE 472 # parse NAME=VALUE
422 my @kv; 473 my @kv;
423 474
475 # expires is not http-compliant in the original cookie-spec,
476 # we support the official date format and some extensions
424 while ( 477 while (
425 m{ 478 m{
426 \G\s* 479 \G\s*
427 (?: 480 (?:
428 expires \s*=\s* ([A-Z][a-z][a-z],\ [^,;]+) 481 expires \s*=\s* ([A-Z][a-z][a-z]+,\ [^,;]+)
429 | ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) 482 | ([^=;,[:space:]]+) (?: \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) )?
430 ) 483 )
431 }gcxsi 484 }gcxsi
432 ) { 485 ) {
433 my $name = $2; 486 my $name = $2;
434 my $value = $4; 487 my $value = $4;
435 488
436 unless (defined $name) { 489 if (defined $1) {
437 # expires 490 # expires
438 $name = "expires"; 491 $name = "expires";
439 $value = $1; 492 $value = $1;
440 } elsif (!defined $value) { 493 } elsif (defined $3) {
441 # quoted 494 # quoted
442 $value = $3; 495 $value = $3;
443 $value =~ s/\\(.)/$1/gs; 496 $value =~ s/\\(.)/$1/gs;
444 } 497 }
445 498
… …
451 last unless @kv; 504 last unless @kv;
452 505
453 my $name = shift @kv; 506 my $name = shift @kv;
454 my %kv = (value => shift @kv, @kv); 507 my %kv = (value => shift @kv, @kv);
455 508
456 $kv{expires} ||= format_date (AE::now + $kv{"max-age"})
457 if exists $kv{"max-age"}; 509 if (exists $kv{"max-age"}) {
510 $kv{_expires} = $anow + delete $kv{"max-age"};
511 } elsif (exists $kv{expires}) {
512 $snow ||= parse_date ($date) || $anow;
513 $kv{_expires} = $anow + (parse_date (delete $kv{expires}) - $snow);
514 } else {
515 delete $kv{_expires};
516 }
458 517
459 my $cdom; 518 my $cdom;
460 my $cpath = (delete $kv{path}) || "/"; 519 my $cpath = (delete $kv{path}) || "/";
461 520
462 if (exists $kv{domain}) { 521 if (exists $kv{domain}) {
… …
473 $cdom = $uhost; 532 $cdom = $uhost;
474 } 533 }
475 534
476 # store it 535 # store it
477 $jar->{version} = 1; 536 $jar->{version} = 1;
478 $jar->{$cdom}{$cpath}{$name} = \%kv; 537 $jar->{lc $cdom}{$cpath}{$name} = \%kv;
479 538
480 redo if /\G\s*,/gc; 539 redo if /\G\s*,/gc;
481 } 540 }
482} 541}
483 542
… …
600 _get_slot $uhost, sub { 659 _get_slot $uhost, sub {
601 $state{slot_guard} = shift; 660 $state{slot_guard} = shift;
602 661
603 return unless $state{connect_guard}; 662 return unless $state{connect_guard};
604 663
664 my $ae_error = 595; # connecting
665
666 # handle actual, non-tunneled, request
667 my $handle_actual_request = sub {
668 $ae_error = 596; # request phase
669
670 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
671
672 # send request
673 $state{handle}->push_write (
674 "$method $rpath HTTP/1.1\015\012"
675 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
676 . "\015\012"
677 . (delete $arg{body})
678 );
679
680 # return if error occured during push_write()
681 return unless %state;
682
683 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
684
685 # status line and headers
686 $state{read_response} = sub {
687 for ("$_[1]") {
688 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
689
690 /^HTTP\/0*([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/gxci
691 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
692
693 # 100 Continue handling
694 # should not happen as we don't send expect: 100-continue,
695 # but we handle it just in case.
696 # since we send the request body regardless, if we get an error
697 # we are out of-sync, which we currently do NOT handle correctly.
698 return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
699 if $2 eq 100;
700
701 push @pseudo,
702 HTTPVersion => $1,
703 Status => $2,
704 Reason => $3,
705 ;
706
707 my $hdr = parse_hdr
708 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
709
710 %hdr = (%$hdr, @pseudo);
711 }
712
713 # redirect handling
714 # microsoft and other shitheads don't give a shit for following standards,
715 # try to support some common forms of broken Location headers.
716 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
717 $hdr{location} =~ s/^\.\/+//;
718
719 my $url = "$rscheme://$uhost:$uport";
720
721 unless ($hdr{location} =~ s/^\///) {
722 $url .= $upath;
723 $url =~ s/\/[^\/]*$//;
724 }
725
726 $hdr{location} = "$url/$hdr{location}";
727 }
728
729 my $redirect;
730
731 if ($recurse) {
732 my $status = $hdr{Status};
733
734 # industry standard is to redirect POST as GET for
735 # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
736 # also, the UA should ask the user for 301 and 307 and POST,
737 # industry standard seems to be to simply follow.
738 # we go with the industry standard.
739 if ($status == 301 or $status == 302 or $status == 303) {
740 # HTTP/1.1 is unclear on how to mutate the method
741 $method = "GET" unless $method eq "HEAD";
742 $redirect = 1;
743 } elsif ($status == 307) {
744 $redirect = 1;
745 }
746 }
747
748 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
749 my $may_keep_alive = $_[3];
750
751 $state{handle}->destroy if $state{handle};
752 %state = ();
753
754 if (defined $_[1]) {
755 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
756 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
757 }
758
759 # set-cookie processing
760 if ($arg{cookie_jar}) {
761 cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date};
762 }
763
764 if ($redirect && exists $hdr{location}) {
765 # we ignore any errors, as it is very common to receive
766 # Content-Length != 0 but no actual body
767 # we also access %hdr, as $_[1] might be an erro
768 http_request (
769 $method => $hdr{location},
770 %arg,
771 recurse => $recurse - 1,
772 Redirect => [$_[0], \%hdr],
773 $cb);
774 } else {
775 $cb->($_[0], \%hdr);
776 }
777 };
778
779 $ae_error = 597; # body phase
780
781 my $len = $hdr{"content-length"};
782
783 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
784 $finish->(undef, 598 => "Request cancelled by on_header");
785 } elsif (
786 $hdr{Status} =~ /^(?:1..|204|205|304)$/
787 or $method eq "HEAD"
788 or (defined $len && !$len)
789 ) {
790 # no body
791 $finish->("", undef, undef, 1);
792 } else {
793 # body handling, many different code paths
794 # - no body expected
795 # - want_body_handle
796 # - te chunked
797 # - 2x length known (with or without on_body)
798 # - 2x length not known (with or without on_body)
799 if (!$redirect && $arg{want_body_handle}) {
800 $_[0]->on_eof (undef);
801 $_[0]->on_error (undef);
802 $_[0]->on_read (undef);
803
804 $finish->(delete $state{handle});
805
806 } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
807 my $cl = 0;
808 my $body = undef;
809 my $on_body = $arg{on_body} || sub { $body .= shift; 1 };
810
811 $state{read_chunk} = sub {
812 $_[1] =~ /^([0-9a-fA-F]+)/
813 or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
814
815 my $len = hex $1;
816
817 if ($len) {
818 $cl += $len;
819
820 $_[0]->push_read (chunk => $len, sub {
821 $on_body->($_[1], \%hdr)
822 or return $finish->(undef, 598 => "Request cancelled by on_body");
823
824 $_[0]->push_read (line => sub {
825 length $_[1]
826 and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
827 $_[0]->push_read (line => $state{read_chunk});
828 });
829 });
830 } else {
831 $hdr{"content-length"} ||= $cl;
832
833 $_[0]->push_read (line => $qr_nlnl, sub {
834 if (length $_[1]) {
835 for ("$_[1]") {
836 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
837
838 my $hdr = parse_hdr
839 or return $finish->(undef, $ae_error => "Garbled response trailers");
840
841 %hdr = (%hdr, %$hdr);
842 }
843 }
844
845 $finish->($body, undef, undef, 1);
846 });
847 }
848 };
849
850 $_[0]->push_read (line => $state{read_chunk});
851
852 } elsif ($arg{on_body}) {
853 if ($len) {
854 $_[0]->on_read (sub {
855 $len -= length $_[0]{rbuf};
856
857 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
858 or return $finish->(undef, 598 => "Request cancelled by on_body");
859
860 $len > 0
861 or $finish->("", undef, undef, 1);
862 });
863 } else {
864 $_[0]->on_eof (sub {
865 $finish->("");
866 });
867 $_[0]->on_read (sub {
868 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
869 or $finish->(undef, 598 => "Request cancelled by on_body");
870 });
871 }
872 } else {
873 $_[0]->on_eof (undef);
874
875 if ($len) {
876 $_[0]->on_read (sub {
877 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
878 if $len <= length $_[0]{rbuf};
879 });
880 } else {
881 $_[0]->on_error (sub {
882 ($! == Errno::EPIPE || !$!)
883 ? $finish->(delete $_[0]{rbuf})
884 : $finish->(undef, $ae_error => $_[2]);
885 });
886 $_[0]->on_read (sub { });
887 }
888 }
889 }
890 };
891
892 $state{handle}->push_read (line => $qr_nlnl, $state{read_response});
893 };
894
605 my $connect_cb = sub { 895 my $connect_cb = sub {
606 $state{fh} = shift 896 $state{fh} = shift
607 or do { 897 or do {
608 my $err = "$!"; 898 my $err = "$!";
609 %state = (); 899 %state = ();
610 return $cb->(undef, { @pseudo, Status => 599, Reason => $err }); 900 return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
611 }; 901 };
612
613 pop; # free memory, save a tree
614 902
615 return unless delete $state{connect_guard}; 903 return unless delete $state{connect_guard};
616 904
617 # get handle 905 # get handle
618 $state{handle} = new AnyEvent::Handle 906 $state{handle} = new AnyEvent::Handle
… …
621 tls_ctx => $arg{tls_ctx}, 909 tls_ctx => $arg{tls_ctx},
622 # these need to be reconfigured on keepalive handles 910 # these need to be reconfigured on keepalive handles
623 timeout => $timeout, 911 timeout => $timeout,
624 on_error => sub { 912 on_error => sub {
625 %state = (); 913 %state = ();
626 $cb->(undef, { @pseudo, Status => 599, Reason => $_[2] }); 914 $cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
627 }, 915 },
628 on_eof => sub { 916 on_eof => sub {
629 %state = (); 917 %state = ();
630 $cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" }); 918 $cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
631 }, 919 },
632 ; 920 ;
633 921
634 # limit the number of persistent connections 922 # limit the number of persistent connections
635 # keepalive not yet supported 923 # keepalive not yet supported
… …
641# $hdr{connection} = "keep-alive"; 929# $hdr{connection} = "keep-alive";
642# } 930# }
643 931
644 $state{handle}->starttls ("connect") if $rscheme eq "https"; 932 $state{handle}->starttls ("connect") if $rscheme eq "https";
645 933
646 # handle actual, non-tunneled, request
647 my $handle_actual_request = sub {
648 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
649
650 # send request
651 $state{handle}->push_write (
652 "$method $rpath HTTP/1.1\015\012"
653 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
654 . "\015\012"
655 . (delete $arg{body})
656 );
657
658 # return if error occured during push_write()
659 return unless %state;
660
661 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
662
663 # status line and headers
664 $state{read_response} = sub {
665 for ("$_[1]") {
666 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
667
668 /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
669 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
670
671 # 100 Continue handling
672 # should not happen as we don't send expect: 100-continue,
673 # but we handle it just in case.
674 # since we send the request body regardless, if we get an error
675 # we are out of-sync, which we currently do NOT handle correctly.
676 return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
677 if $2 eq 100;
678
679 push @pseudo,
680 HTTPVersion => $1,
681 Status => $2,
682 Reason => $3,
683 ;
684
685 my $hdr = parse_hdr
686 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
687
688 %hdr = (%$hdr, @pseudo);
689 }
690
691 # redirect handling
692 # microsoft and other shitheads don't give a shit for following standards,
693 # try to support some common forms of broken Location headers.
694 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
695 $hdr{location} =~ s/^\.\/+//;
696
697 my $url = "$rscheme://$uhost:$uport";
698
699 unless ($hdr{location} =~ s/^\///) {
700 $url .= $upath;
701 $url =~ s/\/[^\/]*$//;
702 }
703
704 $hdr{location} = "$url/$hdr{location}";
705 }
706
707 my $redirect;
708
709 if ($recurse) {
710 my $status = $hdr{Status};
711
712 # industry standard is to redirect POST as GET for
713 # 301, 302 and 303, in contrast to http/1.0 and 1.1.
714 # also, the UA should ask the user for 301 and 307 and POST,
715 # industry standard seems to be to simply follow.
716 # we go with the industry standard.
717 if ($status == 301 or $status == 302 or $status == 303) {
718 # HTTP/1.1 is unclear on how to mutate the method
719 $method = "GET" unless $method eq "HEAD";
720 $redirect = 1;
721 } elsif ($status == 307) {
722 $redirect = 1;
723 }
724 }
725
726 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
727 my $keepalive = pop;
728
729 $state{handle}->destroy if $state{handle};
730 %state = ();
731
732 if (defined $_[1]) {
733 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
734 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
735 }
736
737 # set-cookie processing
738 if ($arg{cookie_jar}) {
739 cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost;
740 }
741
742 if ($redirect && exists $hdr{location}) {
743 # we ignore any errors, as it is very common to receive
744 # Content-Length != 0 but no actual body
745 # we also access %hdr, as $_[1] might be an erro
746 http_request (
747 $method => $hdr{location},
748 %arg,
749 recurse => $recurse - 1,
750 Redirect => [$_[0], \%hdr],
751 $cb);
752 } else {
753 $cb->($_[0], \%hdr);
754 }
755 };
756
757 my $len = $hdr{"content-length"};
758
759 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
760 $finish->(undef, 598 => "Request cancelled by on_header");
761 } elsif (
762 $hdr{Status} =~ /^(?:1..|204|205|304)$/
763 or $method eq "HEAD"
764 or (defined $len && !$len)
765 ) {
766 # no body
767 $finish->("", undef, undef, 1);
768 } else {
769 # body handling, many different code paths
770 # - no body expected
771 # - want_body_handle
772 # - te chunked
773 # - 2x length known (with or without on_body)
774 # - 2x length not known (with or without on_body)
775 if (!$redirect && $arg{want_body_handle}) {
776 $_[0]->on_eof (undef);
777 $_[0]->on_error (undef);
778 $_[0]->on_read (undef);
779
780 $finish->(delete $state{handle});
781
782 } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
783 my $cl = 0;
784 my $body = undef;
785 my $on_body = $arg{on_body} || sub { $body .= shift; 1 };
786
787 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
788
789 my $read_chunk; $read_chunk = sub {
790 $_[1] =~ /^([0-9a-fA-F]+)/
791 or $finish->(undef, 599 => "Garbled chunked transfer encoding");
792
793 my $len = hex $1;
794
795 if ($len) {
796 $cl += $len;
797
798 $_[0]->push_read (chunk => $len, sub {
799 $on_body->($_[1], \%hdr)
800 or return $finish->(undef, 598 => "Request cancelled by on_body");
801
802 $_[0]->push_read (line => sub {
803 length $_[1]
804 and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
805 $_[0]->push_read (line => $read_chunk);
806 });
807 });
808 } else {
809 $hdr{"content-length"} ||= $cl;
810
811 $_[0]->push_read (line => $qr_nlnl, sub {
812 if (length $_[1]) {
813 for ("$_[1]") {
814 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
815
816 my $hdr = parse_hdr
817 or return $finish->(undef, 599 => "Garbled response trailers");
818
819 %hdr = (%hdr, %$hdr);
820 }
821 }
822
823 $finish->($body, undef, undef, 1);
824 });
825 }
826 };
827
828 $_[0]->push_read (line => $read_chunk);
829
830 } elsif ($arg{on_body}) {
831 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
832
833 if ($len) {
834 $_[0]->on_read (sub {
835 $len -= length $_[0]{rbuf};
836
837 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
838 or return $finish->(undef, 598 => "Request cancelled by on_body");
839
840 $len > 0
841 or $finish->("", undef, undef, 1);
842 });
843 } else {
844 $_[0]->on_eof (sub {
845 $finish->("");
846 });
847 $_[0]->on_read (sub {
848 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
849 or $finish->(undef, 598 => "Request cancelled by on_body");
850 });
851 }
852 } else {
853 $_[0]->on_eof (undef);
854
855 if ($len) {
856 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
857 $_[0]->on_read (sub {
858 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
859 if $len <= length $_[0]{rbuf};
860 });
861 } else {
862 $_[0]->on_error (sub {
863 ($! == Errno::EPIPE || !$!)
864 ? $finish->(delete $_[0]{rbuf})
865 : $finish->(undef, 599 => $_[2]);
866 });
867 $_[0]->on_read (sub { });
868 }
869 }
870 }
871 };
872
873 $state{handle}->push_read (line => $qr_nlnl, $state{read_response});
874 };
875
876 # now handle proxy-CONNECT method 934 # now handle proxy-CONNECT method
877 if ($proxy && $uscheme eq "https") { 935 if ($proxy && $uscheme eq "https") {
878 # oh dear, we have to wrap it into a connect request 936 # oh dear, we have to wrap it into a connect request
879 937
880 # maybe re-use $uauthority with patched port? 938 # maybe re-use $uauthority with patched port?
… …
883 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix 941 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
884 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" })); 942 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
885 943
886 if ($2 == 200) { 944 if ($2 == 200) {
887 $rpath = $upath; 945 $rpath = $upath;
888 &$handle_actual_request; 946 $handle_actual_request->();
889 } else { 947 } else {
890 %state = (); 948 %state = ();
891 $cb->(undef, { @pseudo, Status => $2, Reason => $3 }); 949 $cb->(undef, { @pseudo, Status => $2, Reason => $3 });
892 } 950 }
893 }); 951 });
894 } else { 952 } else {
895 &$handle_actual_request; 953 $handle_actual_request->();
896 } 954 }
897 }; 955 };
898 956
899 my $tcp_connect = $arg{tcp_connect} 957 my $tcp_connect = $arg{tcp_connect}
900 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect }; 958 || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
901 959
902 $state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} || sub { $timeout }); 960 $state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} || sub { $timeout });
903
904 }; 961 };
905 962
906 defined wantarray && AnyEvent::Util::guard { %state = () } 963 defined wantarray && AnyEvent::Util::guard { %state = () }
907} 964}
908 965
… …
943string of the form C<http://host:port> (optionally C<https:...>), croaks 1000string of the form C<http://host:port> (optionally C<https:...>), croaks
944otherwise. 1001otherwise.
945 1002
946To clear an already-set proxy, use C<undef>. 1003To clear an already-set proxy, use C<undef>.
947 1004
1005=item AnyEvent::HTTP::cookie_jar_expire $jar[, $session_end]
1006
1007Remove all cookies from the cookie jar that have been expired. If
1008C<$session_end> is given and true, then additionally remove all session
1009cookies.
1010
1011You should call this function (with a true C<$session_end>) before you
1012save cookies to disk, and you should call this function after loading them
1013again. If you have a long-running program you can additonally call this
1014function from time to time.
1015
1016A cookie jar is initially an empty hash-reference that is managed by this
1017module. It's format is subject to change, but currently it is like this:
1018
1019The key C<version> has to contain C<1>, otherwise the hash gets
1020emptied. All other keys are hostnames or IP addresses pointing to
1021hash-references. The key for these inner hash references is the
1022server path for which this cookie is meant, and the values are again
1023hash-references. The keys of those hash-references is the cookie name, and
1024the value, you guessed it, is another hash-reference, this time with the
1025key-value pairs from the cookie, except for C<expires> and C<max-age>,
1026which have been replaced by a C<_expires> key that contains the cookie
1027expiry timestamp.
1028
1029Here is an example of a cookie jar with a single cookie, so you have a
1030chance of understanding the above paragraph:
1031
1032 {
1033 version => 1,
1034 "10.0.0.1" => {
1035 "/" => {
1036 "mythweb_id" => {
1037 _expires => 1293917923,
1038 value => "ooRung9dThee3ooyXooM1Ohm",
1039 },
1040 },
1041 },
1042 }
1043
948=item $date = AnyEvent::HTTP::format_date $timestamp 1044=item $date = AnyEvent::HTTP::format_date $timestamp
949 1045
950Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP 1046Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
951Date (RFC 2616). 1047Date (RFC 2616).
952 1048
953=item $timestamp = AnyEvent::HTTP::parse_date $date 1049=item $timestamp = AnyEvent::HTTP::parse_date $date
954 1050
955Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and 1051Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
956returns the corresponding POSIX timestamp, or C<undef> if the date cannot 1052bunch of minor variations of those, and returns the corresponding POSIX
957be parsed. 1053timestamp, or C<undef> if the date cannot be parsed.
958 1054
959=item $AnyEvent::HTTP::MAX_RECURSE 1055=item $AnyEvent::HTTP::MAX_RECURSE
960 1056
961The default value for the C<recurse> request parameter (default: C<10>). 1057The default value for the C<recurse> request parameter (default: C<10>).
962 1058
… …
1001sub parse_date($) { 1097sub parse_date($) {
1002 my ($date) = @_; 1098 my ($date) = @_;
1003 1099
1004 my ($d, $m, $y, $H, $M, $S); 1100 my ($d, $m, $y, $H, $M, $S);
1005 1101
1006 if ($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$/) { 1102 if ($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$/) {
1007 # RFC 822/1123, required by RFC 2616 (with " ") 1103 # RFC 822/1123, required by RFC 2616 (with " ")
1008 # cookie dates (with "-") 1104 # cookie dates (with "-")
1009 1105
1010 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6); 1106 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
1011 1107
1012 } elsif ($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$/) { 1108 } elsif ($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$/) {
1013 # RFC 850 1109 # RFC 850
1014 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6); 1110 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
1015 1111
1016 } elsif ($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])$/) { 1112 } elsif ($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])$/) {
1017 # ISO C's asctime 1113 # ISO C's asctime
1018 ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5); 1114 ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
1019 } 1115 }
1020 # other formats fail in the loop below 1116 # other formats fail in the loop below
1021 1117

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