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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.54 by root, Wed Jun 16 18:09:52 2010 UTC vs.
Revision 1.58 by root, Sun Nov 14 20:23:00 2010 UTC

… …
48use AnyEvent::Socket (); 48use AnyEvent::Socket ();
49use AnyEvent::Handle (); 49use AnyEvent::Handle ();
50 50
51use base Exporter::; 51use base Exporter::;
52 52
53our $VERSION = '1.44'; 53our $VERSION = '1.46';
54 54
55our @EXPORT = qw(http_get http_post http_head http_request); 55our @EXPORT = qw(http_get http_post http_head http_request);
56 56
57our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; 57our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
58our $MAX_RECURSE = 10; 58our $MAX_RECURSE = 10;
… …
92must be an absolute http or https URL. 92must be an absolute http or https URL.
93 93
94When called in void context, nothing is returned. In other contexts, 94When called in void context, nothing is returned. In other contexts,
95C<http_request> returns a "cancellation guard" - you have to keep the 95C<http_request> returns a "cancellation guard" - you have to keep the
96object at least alive until the callback get called. If the object gets 96object at least alive until the callback get called. If the object gets
97destroyed before the callbakc is called, the request will be cancelled. 97destroyed before the callback is called, the request will be cancelled.
98 98
99The callback will be called with the response body data as first argument 99The callback will be called with the response body data as first argument
100(or C<undef> if an error occured), and a hash-ref with response headers as 100(or C<undef> if an error occured), and a hash-ref with response headers as
101second argument. 101second argument.
102 102
103All the headers in that hash are lowercased. In addition to the response 103All the headers in that hash are lowercased. In addition to the response
104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason> 104headers, the "pseudo-headers" (uppercase to avoid clashing with possible
105response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105contain the three parts of the HTTP Status-Line of the same name. The 106three parts of the HTTP Status-Line of the same name.
107
106pseudo-header C<URL> contains the original URL (which can differ from the 108The pseudo-header C<URL> contains the actual URL (which can differ from
107requested URL when following redirects). 109the requested URL when following redirects - for example, you might get
110an error that your URL scheme is not supported even though your URL is a
111valid http URL because it redirected to an ftp URL, in which case you can
112look at the URL pseudo header).
113
114The pseudo-header C<Redirect> only exists when the request was a result
115of an internal redirect. In that case it is an array reference with
116the C<($data, $headers)> from the redirect response. Note that this
117response could in turn be the result of a redirect itself, and C<<
118$headers->{Redirect}[1]{Redirect} >> will then contain the original
119response, and so on.
108 120
109If the server sends a header multiple times, then their contents will be 121If the server sends a header multiple times, then their contents will be
110joined together with a comma (C<,>), as per the HTTP spec. 122joined together with a comma (C<,>), as per the HTTP spec.
111 123
112If an internal error occurs, such as not being able to resolve a hostname, 124If an internal error occurs, such as not being able to resolve a hostname,
… …
326 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 338 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
327 339
328 _slot_schedule $_[0]; 340 _slot_schedule $_[0];
329} 341}
330 342
331our $qr_nl = qr{\015?\012};
332our $qr_nlnl = qr{(?<![^\012])\015?\012}; 343our $qr_nlnl = qr{(?<![^\012])\015?\012};
333 344
334our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 }; 345our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
335our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" }; 346our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
336 347
… …
349 while (my ($k, $v) = each %$hdr) { 360 while (my ($k, $v) = each %$hdr) {
350 $hdr{lc $k} = $v; 361 $hdr{lc $k} = $v;
351 } 362 }
352 } 363 }
353 364
365 # pseudo headers for all subsequent responses
366 my @pseudo = (URL => $url);
367 push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
368
354 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE; 369 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
355 370
356 return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url }) 371 return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })
357 if $recurse < 0; 372 if $recurse < 0;
358 373
359 my $proxy = $arg{proxy} || $PROXY; 374 my $proxy = $arg{proxy} || $PROXY;
360 my $timeout = $arg{timeout} || $TIMEOUT; 375 my $timeout = $arg{timeout} || $TIMEOUT;
361 376
362 my ($uscheme, $uauthority, $upath, $query, $fragment) = 377 my ($uscheme, $uauthority, $upath, $query, $fragment) =
363 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; 378 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:(\?[^#]*))?(?:#(.*))?|;
364 379
365 $uscheme = lc $uscheme; 380 $uscheme = lc $uscheme;
366 381
367 my $uport = $uscheme eq "http" ? 80 382 my $uport = $uscheme eq "http" ? 80
368 : $uscheme eq "https" ? 443 383 : $uscheme eq "https" ? 443
369 : return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url }); 384 : return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });
370 385
371 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x 386 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
372 or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url }); 387 or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });
373 388
374 my $uhost = $1; 389 my $uhost = $1;
375 $uport = $2 if defined $2; 390 $uport = $2 if defined $2;
376 391
377 $hdr{host} = defined $2 ? "$uhost:$2" : "$uhost" 392 $hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
378 unless exists $hdr{host}; 393 unless exists $hdr{host};
379 394
380 $uhost =~ s/^\[(.*)\]$/$1/; 395 $uhost =~ s/^\[(.*)\]$/$1/;
381 $upath .= "?$query" if length $query; 396 $upath .= $query if length $query;
382 397
383 $upath =~ s%^/?%/%; 398 $upath =~ s%^/?%/%;
384 399
385 # cookie processing 400 # cookie processing
386 if (my $jar = $arg{cookie_jar}) { 401 if (my $jar = $arg{cookie_jar}) {
… …
444 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { 459 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
445 $state{fh} = shift 460 $state{fh} = shift
446 or do { 461 or do {
447 my $err = "$!"; 462 my $err = "$!";
448 %state = (); 463 %state = ();
449 return $cb->(undef, { Status => 599, Reason => $err, URL => $url }); 464 return $cb->(undef, { Status => 599, Reason => $err, @pseudo });
450 }; 465 };
451 466
452 pop; # free memory, save a tree 467 pop; # free memory, save a tree
453 468
454 return unless delete $state{connect_guard}; 469 return unless delete $state{connect_guard};
455 470
456 # get handle 471 # get handle
457 $state{handle} = new AnyEvent::Handle 472 $state{handle} = new AnyEvent::Handle
458 fh => $state{fh}, 473 fh => $state{fh},
474 peername => $rhost,
475 tls_ctx => $arg{tls_ctx},
476 # these need to be reconfigured on keepalive handles
459 timeout => $timeout, 477 timeout => $timeout,
460 peername => $rhost, 478 on_error => sub {
461 tls_ctx => $arg{tls_ctx}; 479 %state = ();
480 $cb->(undef, { Status => 599, Reason => $_[2], @pseudo });
481 },
482 on_eof => sub {
483 %state = ();
484 $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });
485 },
486 ;
462 487
463 # limit the number of persistent connections 488 # limit the number of persistent connections
464 # keepalive not yet supported 489 # keepalive not yet supported
465 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 490# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
466 ++$KA_COUNT{$_[1]}; 491# ++$KA_COUNT{$_[1]};
467 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { 492# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
468 --$KA_COUNT{$_[1]} 493# --$KA_COUNT{$_[1]}
469 }; 494# };
470 $hdr{connection} = "keep-alive"; 495# $hdr{connection} = "keep-alive";
471 } else { 496# } else {
472 delete $hdr{connection}; 497 delete $hdr{connection};
473 } 498# }
474
475 # (re-)configure handle
476 $state{handle}->on_error (sub {
477 %state = ();
478 $cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
479 });
480 $state{handle}->on_eof (sub {
481 %state = ();
482 $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
483 });
484 499
485 $state{handle}->starttls ("connect") if $rscheme eq "https"; 500 $state{handle}->starttls ("connect") if $rscheme eq "https";
486 501
487 # handle actual, non-tunneled, request 502 # handle actual, non-tunneled, request
488 my $handle_actual_request = sub { 503 my $handle_actual_request = sub {
… …
497 ); 512 );
498 513
499 # return if error occured during push_write() 514 # return if error occured during push_write()
500 return unless %state; 515 return unless %state;
501 516
502 %hdr = (); # reduce memory usage, save a kitten 517 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
503 518
504 # status line 519 # status line and headers
505 $state{handle}->push_read (line => $qr_nl, sub { 520 $state{handle}->push_read (line => $qr_nlnl, sub {
506 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
507 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
508
509 my %hdr = ( # response headers
510 HTTPVersion => ",$1",
511 Status => ",$2",
512 Reason => ",$3",
513 URL => ",$url"
514 );
515
516 # headers, could be optimized a bit
517 $state{handle}->unshift_read (line => $qr_nlnl, sub {
518 for ("$_[1]") { 521 for ("$_[1]") {
519 y/\015//d; # weed out any \015, as they show up in the weirdest of places. 522 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
520 523
524 /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc
525 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response", @pseudo }));
526
527 push @pseudo,
528 HTTPVersion => $1,
529 Status => $2,
530 Reason => $3,
531 ;
532
521 # things seen, not parsed: 533 # things seen, not parsed:
522 # p3pP="NON CUR OTPi OUR NOR UNI" 534 # p3pP="NON CUR OTPi OUR NOR UNI"
523 535
524 $hdr{lc $1} .= ",$2" 536 $hdr{lc $1} .= ",$2"
525 while /\G 537 while /\G
526 ([^:\000-\037]*): 538 ([^:\000-\037]*):
527 [\011\040]* 539 [\011\040]*
528 ((?: [^\012]+ | \012[\011\040] )*) 540 ((?: [^\012]+ | \012[\011\040] )*)
529 \012 541 \012
530 /gxc; 542 /gxc;
531 543
532 /\G$/ 544 /\G$/
533 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url })); 545 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));
546 }
547
548 # remove the "," prefix we added to all headers above
549 substr $_, 0, 1, ""
550 for values %hdr;
551
552 # patch in all pseudo headers
553 %hdr = (%hdr, @pseudo);
554
555 # redirect handling
556 # microsoft and other shitheads don't give a shit for following standards,
557 # try to support some common forms of broken Location headers.
558 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
559 $hdr{location} =~ s/^\.\/+//;
560
561 my $url = "$rscheme://$uhost:$uport";
562
563 unless ($hdr{location} =~ s/^\///) {
564 $url .= $upath;
565 $url =~ s/\/[^\/]*$//;
534 } 566 }
535 567
536 substr $_, 0, 1, ""
537 for values %hdr;
538
539 # redirect handling
540 # microsoft and other shitheads don't give a shit for following standards,
541 # try to support some common forms of broken Location headers.
542 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
543 $hdr{location} =~ s/^\.\/+//;
544
545 my $url = "$rscheme://$uhost:$uport";
546
547 unless ($hdr{location} =~ s/^\///) {
548 $url .= $upath;
549 $url =~ s/\/[^\/]*$//;
550 }
551
552 $hdr{location} = "$url/$hdr{location}"; 568 $hdr{location} = "$url/$hdr{location}";
569 }
570
571 my $redirect;
572
573 if ($recurse) {
574 my $status = $hdr{Status};
575
576 # industry standard is to redirect POST as GET for
577 # 301, 302 and 303, in contrast to http/1.0 and 1.1.
578 # also, the UA should ask the user for 301 and 307 and POST,
579 # industry standard seems to be to simply follow.
580 # we go with the industry standard.
581 if ($status == 301 or $status == 302 or $status == 303) {
582 # HTTP/1.1 is unclear on how to mutate the method
583 $method = "GET" unless $method eq "HEAD";
584 $redirect = 1;
585 } elsif ($status == 307) {
586 $redirect = 1;
553 } 587 }
588 }
554 589
555 my $redirect; 590 my $finish = sub {
591 $state{handle}->destroy if $state{handle};
592 %state = ();
556 593
594 # set-cookie processing
557 if ($recurse) { 595 if ($arg{cookie_jar}) {
558 if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") { 596 for ($_[1]{"set-cookie"}) {
559 # apparently, mozilla et al. just change POST to GET here 597 # parse NAME=VALUE
560 # more research is needed before we do the same 598 my @kv;
599
600 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
561 $redirect = 1; 601 my $name = $1;
562 } elsif ($hdr{Status} == 303) { 602 my $value = $3;
563 # even http/1.1 is unclear on how to mutate the method 603
564 $method = "GET" unless $method eq "HEAD"; 604 unless ($value) {
605 $value = $2;
606 $value =~ s/\\(.)/$1/gs;
607 }
608
609 push @kv, $name => $value;
610
611 last unless /\G\s*;/gc;
612 }
613
614 last unless @kv;
615
616 my $name = shift @kv;
617 my %kv = (value => shift @kv, @kv);
618
619 my $cdom;
620 my $cpath = (delete $kv{path}) || "/";
621
622 if (exists $kv{domain}) {
623 $cdom = delete $kv{domain};
624
625 $cdom =~ s/^\.?/./; # make sure it starts with a "."
626
627 next if $cdom =~ /\.$/;
628
629 # this is not rfc-like and not netscape-like. go figure.
630 my $ndots = $cdom =~ y/.//;
631 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
632 } else {
633 $cdom = $uhost;
634 }
635
565 $redirect = 1; 636 # store it
566 } elsif ($hdr{Status} == 307 && $method =~ /^(?:GET|HEAD)$/) { 637 $arg{cookie_jar}{version} = 1;
567 $redirect = 1; 638 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
639
640 redo if /\G\s*,/gc;
568 } 641 }
569 } 642 }
570 643
571 my $finish = sub { 644 if ($redirect && exists $hdr{location}) {
572 $state{handle}->destroy if $state{handle}; 645 # we ignore any errors, as it is very common to receive
573 %state = (); 646 # Content-Length != 0 but no actual body
574 647 # we also access %hdr, as $_[1] might be an erro
575 # set-cookie processing 648 http_request (
576 if ($arg{cookie_jar}) { 649 $method => $hdr{location},
577 for ($_[1]{"set-cookie"}) {
578 # parse NAME=VALUE
579 my @kv;
580
581 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
582 my $name = $1;
583 my $value = $3;
584
585 unless ($value) {
586 $value = $2;
587 $value =~ s/\\(.)/$1/gs;
588 } 650 %arg,
651 recurse => $recurse - 1,
652 Redirect => \@_,
653 $cb);
654 } else {
655 $cb->($_[0], $_[1]);
656 }
657 };
589 658
590 push @kv, $name => $value; 659 my $len = $hdr{"content-length"};
591 660
592 last unless /\G\s*;/gc; 661 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
662 $finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", @pseudo });
663 } elsif (
664 $hdr{Status} =~ /^(?:1..|[23]04)$/
665 or $method eq "HEAD"
666 or (defined $len && !$len)
667 ) {
668 # no body
669 $finish->("", \%hdr);
670 } else {
671 # body handling, four different code paths
672 # for want_body_handle, on_body (2x), normal (2x)
673 # we might read too much here, but it does not matter yet (no pers. connections)
674 if (!$redirect && $arg{want_body_handle}) {
675 $_[0]->on_eof (undef);
676 $_[0]->on_error (undef);
677 $_[0]->on_read (undef);
678
679 $finish->(delete $state{handle}, \%hdr);
680
681 } elsif ($arg{on_body}) {
682 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
683 if ($len) {
684 $_[0]->on_eof (undef);
685 $_[0]->on_read (sub {
686 $len -= length $_[0]{rbuf};
687
688 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
689 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
690
593 } 691 $len > 0
594 692 or $finish->("", \%hdr);
595 last unless @kv;
596
597 my $name = shift @kv;
598 my %kv = (value => shift @kv, @kv);
599
600 my $cdom;
601 my $cpath = (delete $kv{path}) || "/";
602
603 if (exists $kv{domain}) {
604 $cdom = delete $kv{domain};
605
606 $cdom =~ s/^\.?/./; # make sure it starts with a "."
607
608 next if $cdom =~ /\.$/;
609
610 # this is not rfc-like and not netscape-like. go figure.
611 my $ndots = $cdom =~ y/.//;
612 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
613 } else {
614 $cdom = $uhost;
615 }
616
617 # store it
618 $arg{cookie_jar}{version} = 1;
619 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
620
621 redo if /\G\s*,/gc;
622 } 693 });
694 } else {
695 $_[0]->on_eof (sub {
696 $finish->("", \%hdr);
697 });
698 $_[0]->on_read (sub {
699 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
700 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
701 });
623 } 702 }
703 } else {
704 $_[0]->on_eof (undef);
624 705
625 if ($redirect && exists $hdr{location}) { 706 if ($len) {
626 # we ignore any errors, as it is very common to receive 707 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
627 # Content-Length != 0 but no actual body 708 $_[0]->on_read (sub {
628 # we also access %hdr, as $_[1] might be an erro 709 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
629 http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb); 710 if $len <= length $_[0]{rbuf};
711 });
630 } else { 712 } else {
631 $cb->($_[0], $_[1]);
632 }
633 };
634
635 my $len = $hdr{"content-length"};
636
637 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
638 $finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
639 } elsif (
640 $hdr{Status} =~ /^(?:1..|[23]04)$/
641 or $method eq "HEAD"
642 or (defined $len && !$len)
643 ) {
644 # no body
645 $finish->("", \%hdr);
646 } else {
647 # body handling, four different code paths
648 # for want_body_handle, on_body (2x), normal (2x)
649 # we might read too much here, but it does not matter yet (no pers. connections)
650 if (!$redirect && $arg{want_body_handle}) {
651 $_[0]->on_eof (undef);
652 $_[0]->on_error (undef);
653 $_[0]->on_read (undef);
654
655 $finish->(delete $state{handle}, \%hdr);
656
657 } elsif ($arg{on_body}) {
658 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
659 if ($len) {
660 $_[0]->on_eof (undef);
661 $_[0]->on_read (sub {
662 $len -= length $_[0]{rbuf};
663
664 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
665 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
666
667 $len > 0
668 or $finish->("", \%hdr);
669 });
670 } else {
671 $_[0]->on_eof (sub {
672 $finish->("", \%hdr);
673 });
674 $_[0]->on_read (sub {
675 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
676 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
677 });
678 }
679 } else {
680 $_[0]->on_eof (undef);
681
682 if ($len) {
683 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
684 $_[0]->on_read (sub {
685 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
686 if $len <= length $_[0]{rbuf};
687 });
688 } else {
689 $_[0]->on_error (sub { 713 $_[0]->on_error (sub {
690 $! == Errno::EPIPE || !$! 714 ($! == Errno::EPIPE || !$!)
691 ? $finish->(delete $_[0]{rbuf}, \%hdr) 715 ? $finish->(delete $_[0]{rbuf}, \%hdr)
692 : $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }); 716 : $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });
693 }); 717 });
694 $_[0]->on_read (sub { }); 718 $_[0]->on_read (sub { });
695 }
696 } 719 }
697 } 720 }
698 }); 721 }
699 }); 722 });
700 }; 723 };
701 724
702 # now handle proxy-CONNECT method 725 # now handle proxy-CONNECT method
703 if ($proxy && $uscheme eq "https") { 726 if ($proxy && $uscheme eq "https") {
… …
705 728
706 # maybe re-use $uauthority with patched port? 729 # maybe re-use $uauthority with patched port?
707 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012"); 730 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
708 $state{handle}->push_read (line => $qr_nlnl, sub { 731 $state{handle}->push_read (line => $qr_nlnl, sub {
709 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix 732 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
710 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url })); 733 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", @pseudo }));
711 734
712 if ($2 == 200) { 735 if ($2 == 200) {
713 $rpath = $upath; 736 $rpath = $upath;
714 &$handle_actual_request; 737 &$handle_actual_request;
715 } else { 738 } else {
716 %state = (); 739 %state = ();
717 $cb->(undef, { Status => $2, Reason => $3, URL => $url }); 740 $cb->(undef, { Status => $2, Reason => $3, @pseudo });
718 } 741 }
719 }); 742 });
720 } else { 743 } else {
721 &$handle_actual_request; 744 &$handle_actual_request;
722 } 745 }
… …
742 unshift @_, "POST", $url, "body"; 765 unshift @_, "POST", $url, "body";
743 &http_request 766 &http_request
744} 767}
745 768
746=back 769=back
770
771=head2 DNS CACHING
772
773AnyEvent::HTTP uses the AnyEvent::Socket::tcp_connect function for
774the actual connection, which in turn uses AnyEvent::DNS to resolve
775hostnames. The latter is a simple stub resolver and does no caching
776on its own. If you want DNS caching, you currently have to provide
777your own default resolver (by storing a suitable resolver object in
778C<$AnyEvent::DNS::RESOLVER>).
747 779
748=head2 GLOBAL FUNCTIONS AND VARIABLES 780=head2 GLOBAL FUNCTIONS AND VARIABLES
749 781
750=over 4 782=over 4
751 783

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