… | |
… | |
36 | |
36 | |
37 | =cut |
37 | =cut |
38 | |
38 | |
39 | package AnyEvent::HTTP; |
39 | package AnyEvent::HTTP; |
40 | |
40 | |
41 | use strict; |
41 | use common::sense; |
42 | no warnings; |
|
|
43 | |
42 | |
44 | use Errno (); |
43 | use Errno (); |
45 | |
44 | |
46 | use AnyEvent 5.0 (); |
45 | use AnyEvent 5.0 (); |
47 | use AnyEvent::Util (); |
46 | use AnyEvent::Util (); |
… | |
… | |
58 | our $MAX_PERSISTENT = 8; |
57 | our $MAX_PERSISTENT = 8; |
59 | our $PERSISTENT_TIMEOUT = 2; |
58 | our $PERSISTENT_TIMEOUT = 2; |
60 | our $TIMEOUT = 300; |
59 | our $TIMEOUT = 300; |
61 | |
60 | |
62 | # changing these is evil |
61 | # changing these is evil |
63 | our $MAX_PERSISTENT_PER_HOST = 0; |
62 | our $MAX_PERSISTENT_PER_HOST = 2; |
64 | our $MAX_PER_HOST = 4; |
63 | our $MAX_PER_HOST = 4; |
65 | |
64 | |
66 | our $PROXY; |
65 | our $PROXY; |
67 | our $ACTIVE = 0; |
66 | our $ACTIVE = 0; |
68 | |
67 | |
… | |
… | |
196 | =item cookie_jar => $hash_ref |
195 | =item cookie_jar => $hash_ref |
197 | |
196 | |
198 | Passing this parameter enables (simplified) cookie-processing, loosely |
197 | Passing this parameter enables (simplified) cookie-processing, loosely |
199 | based on the original netscape specification. |
198 | based on the original netscape specification. |
200 | |
199 | |
201 | The C<$hash_ref> must be an (initially empty) hash reference which will |
200 | The C<$hash_ref> must be an (initially empty) hash reference which |
202 | get updated automatically. It is possible to save the cookie jar to |
201 | will get updated automatically. It is possible to save the cookie jar |
203 | persistent storage with something like JSON or Storable, but this is not |
202 | to persistent storage with something like JSON or Storable - see the |
204 | recommended, as session-only cookies might survive longer than expected. |
203 | C<AnyEvent::HTTP::cookie_jar_expire> function if you wish to remove |
|
|
204 | expired or session-only cookies, and also for documentation on the format |
|
|
205 | of the cookie jar. |
205 | |
206 | |
206 | Note that this cookie implementation is not meant to be complete. If |
207 | Note that this cookie implementation is not meant to be complete. If |
207 | you want complete cookie management you have to do that on your |
208 | you want complete cookie management you have to do that on your |
208 | own. C<cookie_jar> is meant as a quick fix to get some cookie-using sites |
209 | own. C<cookie_jar> is meant as a quick fix to get most cookie-using sites |
209 | working. Cookies are a privacy disaster, do not use them unless required |
210 | working. Cookies are a privacy disaster, do not use them unless required |
210 | to. |
211 | to. |
211 | |
212 | |
212 | When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:> |
213 | When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:> |
213 | headers will be set and handled by this module, otherwise they will be |
214 | headers will be set and handled by this module, otherwise they will be |
… | |
… | |
378 | push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; |
379 | push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; |
379 | |
380 | |
380 | _slot_schedule $_[0]; |
381 | _slot_schedule $_[0]; |
381 | } |
382 | } |
382 | |
383 | |
|
|
384 | ############################################################################# |
|
|
385 | |
|
|
386 | # expire cookies |
|
|
387 | sub cookie_jar_expire($;$) { |
|
|
388 | my ($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 | |
383 | # extract cookies from jar |
416 | # extract cookies from jar |
384 | sub cookie_jar_extract($$$$) { |
417 | sub cookie_jar_extract($$$$) { |
385 | my ($jar, $uscheme, $uhost, $upath) = @_; |
418 | my ($jar, $uscheme, $uhost, $upath) = @_; |
386 | |
419 | |
387 | %$jar = () if $jar->{version} != 1; |
420 | %$jar = () if $jar->{version} != 1; |
… | |
… | |
403 | next unless $cpath eq substr $upath, 0, length $cpath; |
436 | next unless $cpath eq substr $upath, 0, length $cpath; |
404 | |
437 | |
405 | while (my ($cookie, $kv) = each %$cookies) { |
438 | while (my ($cookie, $kv) = each %$cookies) { |
406 | next if $uscheme ne "https" && exists $kv->{secure}; |
439 | next if $uscheme ne "https" && exists $kv->{secure}; |
407 | |
440 | |
408 | if (exists $kv->{expires}) { |
441 | if (exists $kv->{_expires} and AE::now > $kv->{_expires}) { |
409 | if (AE::now > parse_date ($kv->{expires})) { |
|
|
410 | delete $cookies->{$cookie}; |
442 | delete $cookies->{$cookie}; |
411 | next; |
443 | next; |
412 | } |
|
|
413 | } |
444 | } |
414 | |
445 | |
415 | my $value = $kv->{value}; |
446 | my $value = $kv->{value}; |
416 | |
447 | |
417 | if ($value =~ /[=;,[:space:]]/) { |
448 | if ($value =~ /[=;,[:space:]]/) { |
… | |
… | |
426 | |
457 | |
427 | \@cookies |
458 | \@cookies |
428 | } |
459 | } |
429 | |
460 | |
430 | # parse set_cookie header into jar |
461 | # parse set_cookie header into jar |
431 | sub cookie_jar_set_cookie($$$) { |
462 | sub cookie_jar_set_cookie($$$$) { |
432 | my ($jar, $set_cookie, $uhost) = @_; |
463 | my ($jar, $set_cookie, $uhost, $date) = @_; |
|
|
464 | |
|
|
465 | my $anow = int AE::now; |
|
|
466 | my $snow; # server-now |
433 | |
467 | |
434 | for ($set_cookie) { |
468 | for ($set_cookie) { |
435 | # parse NAME=VALUE |
469 | # parse NAME=VALUE |
436 | my @kv; |
470 | my @kv; |
437 | |
471 | |
… | |
… | |
440 | while ( |
474 | while ( |
441 | m{ |
475 | m{ |
442 | \G\s* |
476 | \G\s* |
443 | (?: |
477 | (?: |
444 | expires \s*=\s* ([A-Z][a-z][a-z]+,\ [^,;]+) |
478 | expires \s*=\s* ([A-Z][a-z][a-z]+,\ [^,;]+) |
445 | | ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) |
479 | | ([^=;,[:space:]]+) (?: \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) )? |
446 | ) |
480 | ) |
447 | }gcxsi |
481 | }gcxsi |
448 | ) { |
482 | ) { |
449 | my $name = $2; |
483 | my $name = $2; |
450 | my $value = $4; |
484 | my $value = $4; |
451 | |
485 | |
452 | unless (defined $name) { |
486 | if (defined $1) { |
453 | # expires |
487 | # expires |
454 | $name = "expires"; |
488 | $name = "expires"; |
455 | $value = $1; |
489 | $value = $1; |
456 | } elsif (!defined $value) { |
490 | } elsif (defined $3) { |
457 | # quoted |
491 | # quoted |
458 | $value = $3; |
492 | $value = $3; |
459 | $value =~ s/\\(.)/$1/gs; |
493 | $value =~ s/\\(.)/$1/gs; |
460 | } |
494 | } |
461 | |
495 | |
… | |
… | |
467 | last unless @kv; |
501 | last unless @kv; |
468 | |
502 | |
469 | my $name = shift @kv; |
503 | my $name = shift @kv; |
470 | my %kv = (value => shift @kv, @kv); |
504 | my %kv = (value => shift @kv, @kv); |
471 | |
505 | |
472 | $kv{expires} ||= format_date (AE::now + $kv{"max-age"}) |
|
|
473 | if exists $kv{"max-age"}; |
506 | if (exists $kv{"max-age"}) { |
|
|
507 | $kv{_expires} = $anow + delete $kv{"max-age"}; |
|
|
508 | } elsif (exists $kv{expires}) { |
|
|
509 | $snow ||= parse_date ($date) || $anow; |
|
|
510 | $kv{_expires} = $anow + (parse_date (delete $kv{expires}) - $snow); |
|
|
511 | } else { |
|
|
512 | delete $kv{_expires}; |
|
|
513 | } |
474 | |
514 | |
475 | my $cdom; |
515 | my $cdom; |
476 | my $cpath = (delete $kv{path}) || "/"; |
516 | my $cpath = (delete $kv{path}) || "/"; |
477 | |
517 | |
478 | if (exists $kv{domain}) { |
518 | if (exists $kv{domain}) { |
… | |
… | |
489 | $cdom = $uhost; |
529 | $cdom = $uhost; |
490 | } |
530 | } |
491 | |
531 | |
492 | # store it |
532 | # store it |
493 | $jar->{version} = 1; |
533 | $jar->{version} = 1; |
494 | $jar->{$cdom}{$cpath}{$name} = \%kv; |
534 | $jar->{lc $cdom}{$cpath}{$name} = \%kv; |
495 | |
535 | |
496 | redo if /\G\s*,/gc; |
536 | redo if /\G\s*,/gc; |
497 | } |
537 | } |
498 | } |
538 | } |
499 | |
539 | |
… | |
… | |
566 | : return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" }); |
606 | : return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" }); |
567 | |
607 | |
568 | $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x |
608 | $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x |
569 | or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" }); |
609 | or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" }); |
570 | |
610 | |
571 | my $uhost = $1; |
611 | my $uhost = lc $1; |
572 | $uport = $2 if defined $2; |
612 | $uport = $2 if defined $2; |
573 | |
613 | |
574 | $hdr{host} = defined $2 ? "$uhost:$2" : "$uhost" |
614 | $hdr{host} = defined $2 ? "$uhost:$2" : "$uhost" |
575 | unless exists $hdr{host}; |
615 | unless exists $hdr{host}; |
576 | |
616 | |
… | |
… | |
595 | $rscheme = "http" unless defined $rscheme; |
635 | $rscheme = "http" unless defined $rscheme; |
596 | |
636 | |
597 | # don't support https requests over https-proxy transport, |
637 | # don't support https requests over https-proxy transport, |
598 | # can't be done with tls as spec'ed, unless you double-encrypt. |
638 | # can't be done with tls as spec'ed, unless you double-encrypt. |
599 | $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https"; |
639 | $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https"; |
|
|
640 | |
|
|
641 | $rhost = lc $rhost; |
|
|
642 | $rscheme = lc $rscheme; |
600 | } else { |
643 | } else { |
601 | ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath); |
644 | ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath); |
602 | } |
645 | } |
603 | |
646 | |
604 | # leave out fragment and query string, just a heuristic |
647 | # leave out fragment and query string, just a heuristic |
… | |
… | |
606 | $hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"}; |
649 | $hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"}; |
607 | |
650 | |
608 | $hdr{"content-length"} = length $arg{body} |
651 | $hdr{"content-length"} = length $arg{body} |
609 | if length $arg{body} || $method ne "GET"; |
652 | if length $arg{body} || $method ne "GET"; |
610 | |
653 | |
611 | $hdr{connection} = "close TE"; #1.1 |
654 | my $idempotent = $method =~ /^(?:GET|HEAD|PUT|DELETE|OPTIONS|TRACE)$/; |
|
|
655 | |
|
|
656 | # default value for keepalive is true iff the request is for an idempotent method |
|
|
657 | my $keepalive = exists $arg{keepalive} |
|
|
658 | ? $arg{keepalive}*1 |
|
|
659 | : $idempotent ? $PERSISTENT_TIMEOUT : 0; |
|
|
660 | |
|
|
661 | $hdr{connection} = ($keepalive ? "" : "close ") . "Te"; #1.1 |
612 | $hdr{te} = "trailers" unless exists $hdr{te}; #1.1 |
662 | $hdr{te} = "trailers" unless exists $hdr{te}; #1.1 |
613 | |
663 | |
614 | my %state = (connect_guard => 1); |
664 | my %state = (connect_guard => 1); |
615 | |
665 | |
616 | _get_slot $uhost, sub { |
|
|
617 | $state{slot_guard} = shift; |
|
|
618 | |
|
|
619 | return unless $state{connect_guard}; |
|
|
620 | |
|
|
621 | my $ae_error = 595; # connecting |
666 | my $ae_error = 595; # connecting |
622 | |
667 | |
623 | my $connect_cb = sub { |
668 | # handle actual, non-tunneled, request |
624 | $state{fh} = shift |
669 | my $handle_actual_request = sub { |
|
|
670 | $ae_error = 596; # request phase |
|
|
671 | |
|
|
672 | $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls}; |
|
|
673 | |
|
|
674 | # send request |
|
|
675 | $state{handle}->push_write ( |
|
|
676 | "$method $rpath HTTP/1.1\015\012" |
|
|
677 | . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) |
|
|
678 | . "\015\012" |
|
|
679 | . (delete $arg{body}) |
|
|
680 | ); |
|
|
681 | |
|
|
682 | # return if error occured during push_write() |
|
|
683 | return unless %state; |
|
|
684 | |
|
|
685 | # reduce memory usage, save a kitten, also re-use it for the response headers. |
|
|
686 | %hdr = (); |
|
|
687 | |
|
|
688 | # status line and headers |
|
|
689 | $state{read_response} = sub { |
|
|
690 | for ("$_[1]") { |
|
|
691 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
|
|
692 | |
|
|
693 | /^HTTP\/0*([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/gxci |
|
|
694 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" })); |
|
|
695 | |
|
|
696 | # 100 Continue handling |
|
|
697 | # should not happen as we don't send expect: 100-continue, |
|
|
698 | # but we handle it just in case. |
|
|
699 | # since we send the request body regardless, if we get an error |
|
|
700 | # we are out of-sync, which we currently do NOT handle correctly. |
|
|
701 | return $state{handle}->push_read (line => $qr_nlnl, $state{read_response}) |
|
|
702 | if $2 eq 100; |
|
|
703 | |
|
|
704 | push @pseudo, |
|
|
705 | HTTPVersion => $1, |
|
|
706 | Status => $2, |
|
|
707 | Reason => $3, |
625 | or do { |
708 | ; |
626 | my $err = "$!"; |
709 | |
|
|
710 | my $hdr = parse_hdr |
|
|
711 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" })); |
|
|
712 | |
|
|
713 | %hdr = (%$hdr, @pseudo); |
|
|
714 | } |
|
|
715 | |
|
|
716 | # redirect handling |
|
|
717 | # microsoft and other shitheads don't give a shit for following standards, |
|
|
718 | # try to support some common forms of broken Location headers. |
|
|
719 | if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { |
|
|
720 | $hdr{location} =~ s/^\.\/+//; |
|
|
721 | |
|
|
722 | my $url = "$rscheme://$uhost:$uport"; |
|
|
723 | |
|
|
724 | unless ($hdr{location} =~ s/^\///) { |
|
|
725 | $url .= $upath; |
|
|
726 | $url =~ s/\/[^\/]*$//; |
|
|
727 | } |
|
|
728 | |
|
|
729 | $hdr{location} = "$url/$hdr{location}"; |
|
|
730 | } |
|
|
731 | |
|
|
732 | my $redirect; |
|
|
733 | |
|
|
734 | if ($recurse) { |
|
|
735 | my $status = $hdr{Status}; |
|
|
736 | |
|
|
737 | # industry standard is to redirect POST as GET for |
|
|
738 | # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1. |
|
|
739 | # also, the UA should ask the user for 301 and 307 and POST, |
|
|
740 | # industry standard seems to be to simply follow. |
|
|
741 | # we go with the industry standard. |
|
|
742 | if ($status == 301 or $status == 302 or $status == 303) { |
|
|
743 | # HTTP/1.1 is unclear on how to mutate the method |
|
|
744 | $method = "GET" unless $method eq "HEAD"; |
|
|
745 | $redirect = 1; |
|
|
746 | } elsif ($status == 307) { |
|
|
747 | $redirect = 1; |
|
|
748 | } |
|
|
749 | } |
|
|
750 | |
|
|
751 | my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive]) |
|
|
752 | my $may_keep_alive = $_[3]; |
|
|
753 | |
|
|
754 | $state{handle}->destroy if $state{handle}; |
627 | %state = (); |
755 | %state = (); |
628 | return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err }); |
756 | |
|
|
757 | if (defined $_[1]) { |
|
|
758 | $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1]; |
|
|
759 | $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2]; |
|
|
760 | } |
|
|
761 | |
|
|
762 | # set-cookie processing |
|
|
763 | if ($arg{cookie_jar}) { |
|
|
764 | cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date}; |
|
|
765 | } |
|
|
766 | |
|
|
767 | if ($redirect && exists $hdr{location}) { |
|
|
768 | # we ignore any errors, as it is very common to receive |
|
|
769 | # Content-Length != 0 but no actual body |
|
|
770 | # we also access %hdr, as $_[1] might be an erro |
|
|
771 | http_request ( |
|
|
772 | $method => $hdr{location}, |
|
|
773 | %arg, |
|
|
774 | recurse => $recurse - 1, |
|
|
775 | Redirect => [$_[0], \%hdr], |
|
|
776 | $cb); |
|
|
777 | } else { |
|
|
778 | $cb->($_[0], \%hdr); |
|
|
779 | } |
|
|
780 | }; |
|
|
781 | |
|
|
782 | $ae_error = 597; # body phase |
|
|
783 | |
|
|
784 | my $len = $hdr{"content-length"}; |
|
|
785 | |
|
|
786 | # body handling, many different code paths |
|
|
787 | # - no body expected |
|
|
788 | # - want_body_handle |
|
|
789 | # - te chunked |
|
|
790 | # - 2x length known (with or without on_body) |
|
|
791 | # - 2x length not known (with or without on_body) |
|
|
792 | if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) { |
|
|
793 | $finish->(undef, 598 => "Request cancelled by on_header"); |
|
|
794 | } elsif ( |
|
|
795 | $hdr{Status} =~ /^(?:1..|204|205|304)$/ |
|
|
796 | or $method eq "HEAD" |
|
|
797 | or (defined $len && $len == 0) # == 0, not !, because "0 " is true |
|
|
798 | ) { |
|
|
799 | # no body |
|
|
800 | $finish->("", undef, undef, 1); |
|
|
801 | |
|
|
802 | } elsif (!$redirect && $arg{want_body_handle}) { |
|
|
803 | $_[0]->on_eof (undef); |
|
|
804 | $_[0]->on_error (undef); |
|
|
805 | $_[0]->on_read (undef); |
|
|
806 | |
|
|
807 | $finish->(delete $state{handle}); |
|
|
808 | |
|
|
809 | } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) { |
|
|
810 | my $cl = 0; |
|
|
811 | my $body = undef; |
|
|
812 | my $on_body = $arg{on_body} || sub { $body .= shift; 1 }; |
|
|
813 | |
|
|
814 | $state{read_chunk} = sub { |
|
|
815 | $_[1] =~ /^([0-9a-fA-F]+)/ |
|
|
816 | or $finish->(undef, $ae_error => "Garbled chunked transfer encoding"); |
|
|
817 | |
|
|
818 | my $len = hex $1; |
|
|
819 | |
|
|
820 | if ($len) { |
|
|
821 | $cl += $len; |
|
|
822 | |
|
|
823 | $_[0]->push_read (chunk => $len, sub { |
|
|
824 | $on_body->($_[1], \%hdr) |
|
|
825 | or return $finish->(undef, 598 => "Request cancelled by on_body"); |
|
|
826 | |
|
|
827 | $_[0]->push_read (line => sub { |
|
|
828 | length $_[1] |
|
|
829 | and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding"); |
|
|
830 | $_[0]->push_read (line => $state{read_chunk}); |
|
|
831 | }); |
|
|
832 | }); |
|
|
833 | } else { |
|
|
834 | $hdr{"content-length"} ||= $cl; |
|
|
835 | |
|
|
836 | $_[0]->push_read (line => $qr_nlnl, sub { |
|
|
837 | if (length $_[1]) { |
|
|
838 | for ("$_[1]") { |
|
|
839 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
|
|
840 | |
|
|
841 | my $hdr = parse_hdr |
|
|
842 | or return $finish->(undef, $ae_error => "Garbled response trailers"); |
|
|
843 | |
|
|
844 | %hdr = (%hdr, %$hdr); |
|
|
845 | } |
|
|
846 | } |
|
|
847 | |
|
|
848 | $finish->($body, undef, undef, 1); |
|
|
849 | }); |
|
|
850 | } |
629 | }; |
851 | }; |
630 | |
852 | |
|
|
853 | $_[0]->push_read (line => $state{read_chunk}); |
|
|
854 | |
|
|
855 | } elsif ($arg{on_body}) { |
|
|
856 | if (defined $len) { |
|
|
857 | $_[0]->on_read (sub { |
|
|
858 | $len -= length $_[0]{rbuf}; |
|
|
859 | |
|
|
860 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
|
|
861 | or return $finish->(undef, 598 => "Request cancelled by on_body"); |
|
|
862 | |
|
|
863 | $len > 0 |
|
|
864 | or $finish->("", undef, undef, 1); |
|
|
865 | }); |
|
|
866 | } else { |
|
|
867 | $_[0]->on_eof (sub { |
|
|
868 | $finish->(""); |
|
|
869 | }); |
|
|
870 | $_[0]->on_read (sub { |
|
|
871 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
|
|
872 | or $finish->(undef, 598 => "Request cancelled by on_body"); |
|
|
873 | }); |
|
|
874 | } |
|
|
875 | } else { |
|
|
876 | $_[0]->on_eof (undef); |
|
|
877 | |
|
|
878 | if (defined $len) { |
|
|
879 | $_[0]->on_read (sub { |
|
|
880 | $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1) |
|
|
881 | if $len <= length $_[0]{rbuf}; |
|
|
882 | }); |
|
|
883 | } else { |
|
|
884 | $_[0]->on_error (sub { |
|
|
885 | ($! == Errno::EPIPE || !$!) |
|
|
886 | ? $finish->(delete $_[0]{rbuf}) |
|
|
887 | : $finish->(undef, $ae_error => $_[2]); |
|
|
888 | }); |
|
|
889 | $_[0]->on_read (sub { }); |
|
|
890 | } |
|
|
891 | } |
|
|
892 | }; |
|
|
893 | |
|
|
894 | $state{handle}->push_read (line => $qr_nlnl, $state{read_response}); |
|
|
895 | }; |
|
|
896 | |
|
|
897 | my $connect_cb = sub { |
|
|
898 | $state{fh} = shift |
|
|
899 | or do { |
|
|
900 | my $err = "$!"; |
|
|
901 | %state = (); |
|
|
902 | return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err }); |
|
|
903 | }; |
|
|
904 | |
631 | return unless delete $state{connect_guard}; |
905 | return unless delete $state{connect_guard}; |
632 | |
906 | |
633 | # get handle |
907 | # get handle |
634 | $state{handle} = new AnyEvent::Handle |
908 | $state{handle} = new AnyEvent::Handle |
635 | fh => $state{fh}, |
909 | fh => $state{fh}, |
636 | peername => $rhost, |
910 | peername => $rhost, |
637 | tls_ctx => $arg{tls_ctx}, |
911 | tls_ctx => $arg{tls_ctx}, |
638 | # these need to be reconfigured on keepalive handles |
912 | # these need to be reconfigured on keepalive handles |
639 | timeout => $timeout, |
913 | timeout => $timeout, |
640 | on_error => sub { |
914 | on_error => sub { |
641 | %state = (); |
915 | %state = (); |
642 | $cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] }); |
916 | $cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] }); |
643 | }, |
917 | }, |
644 | on_eof => sub { |
918 | on_eof => sub { |
645 | %state = (); |
919 | %state = (); |
646 | $cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" }); |
920 | $cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" }); |
647 | }, |
921 | }, |
648 | ; |
922 | ; |
649 | |
923 | |
650 | # limit the number of persistent connections |
924 | # limit the number of persistent connections |
651 | # keepalive not yet supported |
925 | # keepalive not yet supported |
652 | # if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { |
926 | # if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { |
653 | # ++$KA_COUNT{$_[1]}; |
927 | # ++$KA_COUNT{$_[1]}; |
654 | # $state{handle}{ka_count_guard} = AnyEvent::Util::guard { |
928 | # $state{handle}{ka_count_guard} = AnyEvent::Util::guard { |
655 | # --$KA_COUNT{$_[1]} |
929 | # --$KA_COUNT{$_[1]} |
656 | # }; |
930 | # }; |
657 | # $hdr{connection} = "keep-alive"; |
931 | # $hdr{connection} = "keep-alive"; |
658 | # } |
932 | # } |
659 | |
933 | |
660 | $state{handle}->starttls ("connect") if $rscheme eq "https"; |
934 | $state{handle}->starttls ("connect") if $rscheme eq "https"; |
661 | |
935 | |
662 | # handle actual, non-tunneled, request |
|
|
663 | my $handle_actual_request = sub { |
|
|
664 | $ae_error = 596; # request phase |
|
|
665 | |
|
|
666 | $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls}; |
|
|
667 | |
|
|
668 | # send request |
|
|
669 | $state{handle}->push_write ( |
|
|
670 | "$method $rpath HTTP/1.1\015\012" |
|
|
671 | . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) |
|
|
672 | . "\015\012" |
|
|
673 | . (delete $arg{body}) |
|
|
674 | ); |
|
|
675 | |
|
|
676 | # return if error occured during push_write() |
|
|
677 | return unless %state; |
|
|
678 | |
|
|
679 | %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use |
|
|
680 | |
|
|
681 | # status line and headers |
|
|
682 | $state{read_response} = sub { |
|
|
683 | for ("$_[1]") { |
|
|
684 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
|
|
685 | |
|
|
686 | /^HTTP\/0*([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/gxci |
|
|
687 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" })); |
|
|
688 | |
|
|
689 | # 100 Continue handling |
|
|
690 | # should not happen as we don't send expect: 100-continue, |
|
|
691 | # but we handle it just in case. |
|
|
692 | # since we send the request body regardless, if we get an error |
|
|
693 | # we are out of-sync, which we currently do NOT handle correctly. |
|
|
694 | return $state{handle}->push_read (line => $qr_nlnl, $state{read_response}) |
|
|
695 | if $2 eq 100; |
|
|
696 | |
|
|
697 | push @pseudo, |
|
|
698 | HTTPVersion => $1, |
|
|
699 | Status => $2, |
|
|
700 | Reason => $3, |
|
|
701 | ; |
|
|
702 | |
|
|
703 | my $hdr = parse_hdr |
|
|
704 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" })); |
|
|
705 | |
|
|
706 | %hdr = (%$hdr, @pseudo); |
|
|
707 | } |
|
|
708 | |
|
|
709 | # redirect handling |
|
|
710 | # microsoft and other shitheads don't give a shit for following standards, |
|
|
711 | # try to support some common forms of broken Location headers. |
|
|
712 | if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { |
|
|
713 | $hdr{location} =~ s/^\.\/+//; |
|
|
714 | |
|
|
715 | my $url = "$rscheme://$uhost:$uport"; |
|
|
716 | |
|
|
717 | unless ($hdr{location} =~ s/^\///) { |
|
|
718 | $url .= $upath; |
|
|
719 | $url =~ s/\/[^\/]*$//; |
|
|
720 | } |
|
|
721 | |
|
|
722 | $hdr{location} = "$url/$hdr{location}"; |
|
|
723 | } |
|
|
724 | |
|
|
725 | my $redirect; |
|
|
726 | |
|
|
727 | if ($recurse) { |
|
|
728 | my $status = $hdr{Status}; |
|
|
729 | |
|
|
730 | # industry standard is to redirect POST as GET for |
|
|
731 | # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1. |
|
|
732 | # also, the UA should ask the user for 301 and 307 and POST, |
|
|
733 | # industry standard seems to be to simply follow. |
|
|
734 | # we go with the industry standard. |
|
|
735 | if ($status == 301 or $status == 302 or $status == 303) { |
|
|
736 | # HTTP/1.1 is unclear on how to mutate the method |
|
|
737 | $method = "GET" unless $method eq "HEAD"; |
|
|
738 | $redirect = 1; |
|
|
739 | } elsif ($status == 307) { |
|
|
740 | $redirect = 1; |
|
|
741 | } |
|
|
742 | } |
|
|
743 | |
|
|
744 | my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive]) |
|
|
745 | my $may_keep_alive = $_[3]; |
|
|
746 | |
|
|
747 | $state{handle}->destroy if $state{handle}; |
|
|
748 | %state = (); |
|
|
749 | |
|
|
750 | if (defined $_[1]) { |
|
|
751 | $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1]; |
|
|
752 | $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2]; |
|
|
753 | } |
|
|
754 | |
|
|
755 | # set-cookie processing |
|
|
756 | if ($arg{cookie_jar}) { |
|
|
757 | cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost; |
|
|
758 | } |
|
|
759 | |
|
|
760 | if ($redirect && exists $hdr{location}) { |
|
|
761 | # we ignore any errors, as it is very common to receive |
|
|
762 | # Content-Length != 0 but no actual body |
|
|
763 | # we also access %hdr, as $_[1] might be an erro |
|
|
764 | http_request ( |
|
|
765 | $method => $hdr{location}, |
|
|
766 | %arg, |
|
|
767 | recurse => $recurse - 1, |
|
|
768 | Redirect => [$_[0], \%hdr], |
|
|
769 | $cb); |
|
|
770 | } else { |
|
|
771 | $cb->($_[0], \%hdr); |
|
|
772 | } |
|
|
773 | }; |
|
|
774 | |
|
|
775 | $ae_error = 597; # body phase |
|
|
776 | |
|
|
777 | my $len = $hdr{"content-length"}; |
|
|
778 | |
|
|
779 | if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) { |
|
|
780 | $finish->(undef, 598 => "Request cancelled by on_header"); |
|
|
781 | } elsif ( |
|
|
782 | $hdr{Status} =~ /^(?:1..|204|205|304)$/ |
|
|
783 | or $method eq "HEAD" |
|
|
784 | or (defined $len && !$len) |
|
|
785 | ) { |
|
|
786 | # no body |
|
|
787 | $finish->("", undef, undef, 1); |
|
|
788 | } else { |
|
|
789 | # body handling, many different code paths |
|
|
790 | # - no body expected |
|
|
791 | # - want_body_handle |
|
|
792 | # - te chunked |
|
|
793 | # - 2x length known (with or without on_body) |
|
|
794 | # - 2x length not known (with or without on_body) |
|
|
795 | if (!$redirect && $arg{want_body_handle}) { |
|
|
796 | $_[0]->on_eof (undef); |
|
|
797 | $_[0]->on_error (undef); |
|
|
798 | $_[0]->on_read (undef); |
|
|
799 | |
|
|
800 | $finish->(delete $state{handle}); |
|
|
801 | |
|
|
802 | } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) { |
|
|
803 | my $cl = 0; |
|
|
804 | my $body = undef; |
|
|
805 | my $on_body = $arg{on_body} || sub { $body .= shift; 1 }; |
|
|
806 | |
|
|
807 | my $read_chunk; $read_chunk = sub { |
|
|
808 | $_[1] =~ /^([0-9a-fA-F]+)/ |
|
|
809 | or $finish->(undef, $ae_error => "Garbled chunked transfer encoding"); |
|
|
810 | |
|
|
811 | my $len = hex $1; |
|
|
812 | |
|
|
813 | if ($len) { |
|
|
814 | $cl += $len; |
|
|
815 | |
|
|
816 | $_[0]->push_read (chunk => $len, sub { |
|
|
817 | $on_body->($_[1], \%hdr) |
|
|
818 | or return $finish->(undef, 598 => "Request cancelled by on_body"); |
|
|
819 | |
|
|
820 | $_[0]->push_read (line => sub { |
|
|
821 | length $_[1] |
|
|
822 | and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding"); |
|
|
823 | $_[0]->push_read (line => $read_chunk); |
|
|
824 | }); |
|
|
825 | }); |
|
|
826 | } else { |
|
|
827 | $hdr{"content-length"} ||= $cl; |
|
|
828 | |
|
|
829 | $_[0]->push_read (line => $qr_nlnl, sub { |
|
|
830 | if (length $_[1]) { |
|
|
831 | for ("$_[1]") { |
|
|
832 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
|
|
833 | |
|
|
834 | my $hdr = parse_hdr |
|
|
835 | or return $finish->(undef, $ae_error => "Garbled response trailers"); |
|
|
836 | |
|
|
837 | %hdr = (%hdr, %$hdr); |
|
|
838 | } |
|
|
839 | } |
|
|
840 | |
|
|
841 | $finish->($body, undef, undef, 1); |
|
|
842 | }); |
|
|
843 | } |
|
|
844 | }; |
|
|
845 | |
|
|
846 | $_[0]->push_read (line => $read_chunk); |
|
|
847 | |
|
|
848 | } elsif ($arg{on_body}) { |
|
|
849 | if ($len) { |
|
|
850 | $_[0]->on_read (sub { |
|
|
851 | $len -= length $_[0]{rbuf}; |
|
|
852 | |
|
|
853 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
|
|
854 | or return $finish->(undef, 598 => "Request cancelled by on_body"); |
|
|
855 | |
|
|
856 | $len > 0 |
|
|
857 | or $finish->("", undef, undef, 1); |
|
|
858 | }); |
|
|
859 | } else { |
|
|
860 | $_[0]->on_eof (sub { |
|
|
861 | $finish->(""); |
|
|
862 | }); |
|
|
863 | $_[0]->on_read (sub { |
|
|
864 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
|
|
865 | or $finish->(undef, 598 => "Request cancelled by on_body"); |
|
|
866 | }); |
|
|
867 | } |
|
|
868 | } else { |
|
|
869 | $_[0]->on_eof (undef); |
|
|
870 | |
|
|
871 | if ($len) { |
|
|
872 | $_[0]->on_read (sub { |
|
|
873 | $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1) |
|
|
874 | if $len <= length $_[0]{rbuf}; |
|
|
875 | }); |
|
|
876 | } else { |
|
|
877 | $_[0]->on_error (sub { |
|
|
878 | ($! == Errno::EPIPE || !$!) |
|
|
879 | ? $finish->(delete $_[0]{rbuf}) |
|
|
880 | : $finish->(undef, $ae_error => $_[2]); |
|
|
881 | }); |
|
|
882 | $_[0]->on_read (sub { }); |
|
|
883 | } |
|
|
884 | } |
|
|
885 | } |
|
|
886 | }; |
|
|
887 | |
|
|
888 | $state{handle}->push_read (line => $qr_nlnl, $state{read_response}); |
|
|
889 | }; |
|
|
890 | |
|
|
891 | # now handle proxy-CONNECT method |
936 | # now handle proxy-CONNECT method |
892 | if ($proxy && $uscheme eq "https") { |
937 | if ($proxy && $uscheme eq "https") { |
893 | # oh dear, we have to wrap it into a connect request |
938 | # oh dear, we have to wrap it into a connect request |
894 | |
939 | |
895 | # maybe re-use $uauthority with patched port? |
940 | # maybe re-use $uauthority with patched port? |
896 | $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012"); |
941 | $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012\015\012"); |
897 | $state{handle}->push_read (line => $qr_nlnl, sub { |
942 | $state{handle}->push_read (line => $qr_nlnl, sub { |
898 | $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix |
943 | $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix |
899 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" })); |
944 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" })); |
900 | |
945 | |
901 | if ($2 == 200) { |
946 | if ($2 == 200) { |
902 | $rpath = $upath; |
947 | $rpath = $upath; |
903 | &$handle_actual_request; |
948 | $handle_actual_request->(); |
904 | } else { |
949 | } else { |
905 | %state = (); |
950 | %state = (); |
906 | $cb->(undef, { @pseudo, Status => $2, Reason => $3 }); |
951 | $cb->(undef, { @pseudo, Status => $2, Reason => $3 }); |
907 | } |
|
|
908 | }); |
952 | } |
909 | } else { |
|
|
910 | &$handle_actual_request; |
|
|
911 | } |
953 | }); |
|
|
954 | } else { |
|
|
955 | $handle_actual_request->(); |
912 | }; |
956 | } |
|
|
957 | }; |
|
|
958 | |
|
|
959 | _get_slot $uhost, sub { |
|
|
960 | $state{slot_guard} = shift; |
|
|
961 | |
|
|
962 | return unless $state{connect_guard}; |
913 | |
963 | |
914 | my $tcp_connect = $arg{tcp_connect} |
964 | my $tcp_connect = $arg{tcp_connect} |
915 | || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect }; |
965 | || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect }; |
916 | |
966 | |
917 | $state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} || sub { $timeout }); |
967 | $state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} || sub { $timeout }); |
918 | |
|
|
919 | }; |
968 | }; |
920 | |
969 | |
921 | defined wantarray && AnyEvent::Util::guard { %state = () } |
970 | defined wantarray && AnyEvent::Util::guard { %state = () } |
922 | } |
971 | } |
923 | |
972 | |
… | |
… | |
957 | Sets the default proxy server to use. The proxy-url must begin with a |
1006 | Sets the default proxy server to use. The proxy-url must begin with a |
958 | string of the form C<http://host:port> (optionally C<https:...>), croaks |
1007 | string of the form C<http://host:port> (optionally C<https:...>), croaks |
959 | otherwise. |
1008 | otherwise. |
960 | |
1009 | |
961 | To clear an already-set proxy, use C<undef>. |
1010 | To clear an already-set proxy, use C<undef>. |
|
|
1011 | |
|
|
1012 | =item AnyEvent::HTTP::cookie_jar_expire $jar[, $session_end] |
|
|
1013 | |
|
|
1014 | Remove all cookies from the cookie jar that have been expired. If |
|
|
1015 | C<$session_end> is given and true, then additionally remove all session |
|
|
1016 | cookies. |
|
|
1017 | |
|
|
1018 | You should call this function (with a true C<$session_end>) before you |
|
|
1019 | save cookies to disk, and you should call this function after loading them |
|
|
1020 | again. If you have a long-running program you can additonally call this |
|
|
1021 | function from time to time. |
|
|
1022 | |
|
|
1023 | A cookie jar is initially an empty hash-reference that is managed by this |
|
|
1024 | module. It's format is subject to change, but currently it is like this: |
|
|
1025 | |
|
|
1026 | The key C<version> has to contain C<1>, otherwise the hash gets |
|
|
1027 | emptied. All other keys are hostnames or IP addresses pointing to |
|
|
1028 | hash-references. The key for these inner hash references is the |
|
|
1029 | server path for which this cookie is meant, and the values are again |
|
|
1030 | hash-references. The keys of those hash-references is the cookie name, and |
|
|
1031 | the value, you guessed it, is another hash-reference, this time with the |
|
|
1032 | key-value pairs from the cookie, except for C<expires> and C<max-age>, |
|
|
1033 | which have been replaced by a C<_expires> key that contains the cookie |
|
|
1034 | expiry timestamp. |
|
|
1035 | |
|
|
1036 | Here is an example of a cookie jar with a single cookie, so you have a |
|
|
1037 | chance of understanding the above paragraph: |
|
|
1038 | |
|
|
1039 | { |
|
|
1040 | version => 1, |
|
|
1041 | "10.0.0.1" => { |
|
|
1042 | "/" => { |
|
|
1043 | "mythweb_id" => { |
|
|
1044 | _expires => 1293917923, |
|
|
1045 | value => "ooRung9dThee3ooyXooM1Ohm", |
|
|
1046 | }, |
|
|
1047 | }, |
|
|
1048 | }, |
|
|
1049 | } |
962 | |
1050 | |
963 | =item $date = AnyEvent::HTTP::format_date $timestamp |
1051 | =item $date = AnyEvent::HTTP::format_date $timestamp |
964 | |
1052 | |
965 | Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP |
1053 | Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP |
966 | Date (RFC 2616). |
1054 | Date (RFC 2616). |