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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.65 by root, Fri Dec 31 03:47:32 2010 UTC vs.
Revision 1.79 by root, Sat Jan 1 20:01:07 2011 UTC

… …
94C<http_request> returns a "cancellation guard" - you have to keep the 94C<http_request> returns a "cancellation guard" - you have to keep the
95object at least alive until the callback get called. If the object gets 95object at least alive until the callback get called. If the object gets
96destroyed before the callback is called, the request will be cancelled. 96destroyed before the callback is called, the request will be cancelled.
97 97
98The callback will be called with the response body data as first argument 98The callback will be called with the response body data as first argument
99(or C<undef> if an error occured), and a hash-ref with response headers as 99(or C<undef> if an error occured), and a hash-ref with response headers
100second argument. 100(and trailers) as second argument.
101 101
102All the headers in that hash are lowercased. In addition to the response 102All the headers in that hash are lowercased. In addition to the response
103headers, the "pseudo-headers" (uppercase to avoid clashing with possible 103headers, the "pseudo-headers" (uppercase to avoid clashing with possible
104response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the 104response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105three parts of the HTTP Status-Line of the same name. If an error occurs 105three parts of the HTTP Status-Line of the same name. If an error occurs
… …
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) = @_;
… …
150Whether to recurse requests or not, e.g. on redirects, authentication 164Whether to recurse requests or not, e.g. on redirects, authentication
151retries and so on, and how often to do so. 165retries and so on, and how often to do so.
152 166
153=item headers => hashref 167=item headers => hashref
154 168
155The request headers to use. Currently, C<http_request> may provide its 169The request headers to use. Currently, C<http_request> may provide its own
156own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers 170C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and
157and will provide defaults for C<User-Agent:> and C<Referer:> (this can be 171will provide defaults at least for C<TE:>, C<Referer:> and C<User-Agent:>
158suppressed by using C<undef> for these headers in which case they won't be 172(this can be suppressed by using C<undef> for these headers in which case
159sent at all). 173they won't be sent at all).
160 174
161=item timeout => $seconds 175=item timeout => $seconds
162 176
163The time-out to use for various stages - each connect attempt will reset 177The time-out to use for various stages - each connect attempt will reset
164the timeout, as will read or write activity, i.e. this is not an overall 178the timeout, as will read or write activity, i.e. this is not an overall
… …
174C<$scheme> must be either missing, C<http> for HTTP or C<https> for 188C<$scheme> must be either missing, C<http> for HTTP or C<https> for
175HTTPS. 189HTTPS.
176 190
177=item body => $string 191=item body => $string
178 192
179The request body, usually empty. Will be-sent as-is (future versions of 193The request body, usually empty. Will be sent as-is (future versions of
180this module might offer more options). 194this module might offer more options).
181 195
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 will
188get updated automatically. It is possible to save the cookie_jar to 202get updated automatically. It is possible to save the cookie jar to
189persistent storage with something like JSON or Storable, but this is not 203persistent storage with something like JSON or Storable, but this is not
190recommended, as expiry times are currently being ignored. 204recommended, as session-only cookies might survive longer than expected.
191 205
192Note that this cookie implementation is not of very high quality, nor 206Note that this cookie implementation is not meant to be complete. If
193meant to be complete. If you want complete cookie management you have to 207you want complete cookie management you have to do that on your
194do that on your own. C<cookie_jar> is meant as a quick fix to get some 208own. C<cookie_jar> is meant as a quick fix to get some cookie-using sites
195cookie-using sites working. Cookies are a privacy disaster, do not use 209working. Cookies are a privacy disaster, do not use them unless required
196them unless required to. 210to.
211
212When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
213headers will be set and handled by this module, otherwise they will be
214left untouched.
197 215
198=item tls_ctx => $scheme | $tls_ctx 216=item tls_ctx => $scheme | $tls_ctx
199 217
200Specifies the AnyEvent::TLS context to be used for https connections. This 218Specifies the AnyEvent::TLS context to be used for https connections. This
201parameter follows the same rules as the C<tls_ctx> parameter to 219parameter follows the same rules as the C<tls_ctx> parameter to
… …
240 258
241This callback is useful, among other things, to quickly reject unwanted 259This callback is useful, among other things, to quickly reject unwanted
242content, which, if it is supposed to be rare, can be faster than first 260content, which, if it is supposed to be rare, can be faster than first
243doing a C<HEAD> request. 261doing a C<HEAD> request.
244 262
263The downside is that cancelling the request makes it impossible to re-use
264the connection. Also, the C<on_header> callback will not receive any
265trailer (headers sent after the response body).
266
245Example: cancel the request unless the content-type is "text/html". 267Example: cancel the request unless the content-type is "text/html".
246 268
247 on_header => sub { 269 on_header => sub {
248 $_[0]{"content-type"} =~ /^text\/html\s*(?:;|$)/ 270 $_[0]{"content-type"} =~ /^text\/html\s*(?:;|$)/
249 }, 271 },
… …
255string instead of the body data. 277string instead of the body data.
256 278
257It has to return either true (in which case AnyEvent::HTTP will continue), 279It has to return either true (in which case AnyEvent::HTTP will continue),
258or false, in which case AnyEvent::HTTP will cancel the download (and call 280or false, in which case AnyEvent::HTTP will cancel the download (and call
259the completion callback with an error code of C<598>). 281the completion callback with an error code of C<598>).
282
283The downside to cancelling the request is that it makes it impossible to
284re-use the connection.
260 285
261This callback is useful when the data is too large to be held in memory 286This callback is useful when the data is too large to be held in memory
262(so the callback writes it to a file) or when only some information should 287(so the callback writes it to a file) or when only some information should
263be extracted, or when the body should be processed incrementally. 288be extracted, or when the body should be processed incrementally.
264 289
… …
290If you think you need this, first have a look at C<on_body>, to see if 315If you think you need this, first have a look at C<on_body>, to see if
291that doesn't solve your problem in a better way. 316that doesn't solve your problem in a better way.
292 317
293=back 318=back
294 319
295Example: make a simple HTTP GET request for http://www.nethype.de/ 320Example: do a simple HTTP GET request for http://www.nethype.de/ and print
321the response body.
296 322
297 http_request GET => "http://www.nethype.de/", sub { 323 http_request GET => "http://www.nethype.de/", sub {
298 my ($body, $hdr) = @_; 324 my ($body, $hdr) = @_;
299 print "$body\n"; 325 print "$body\n";
300 }; 326 };
301 327
302Example: make a HTTP HEAD request on https://www.google.com/, use a 328Example: do a HTTP HEAD request on https://www.google.com/, use a
303timeout of 30 seconds. 329timeout of 30 seconds.
304 330
305 http_request 331 http_request
306 GET => "https://www.google.com", 332 GET => "https://www.google.com",
307 timeout => 30, 333 timeout => 30,
… …
310 use Data::Dumper; 336 use Data::Dumper;
311 print Dumper $hdr; 337 print Dumper $hdr;
312 } 338 }
313 ; 339 ;
314 340
315Example: make another simple HTTP GET request, but immediately try to 341Example: do another simple HTTP GET request, but immediately try to
316cancel it. 342cancel it.
317 343
318 my $request = http_request GET => "http://www.nethype.de/", sub { 344 my $request = http_request GET => "http://www.nethype.de/", sub {
319 my ($body, $hdr) = @_; 345 my ($body, $hdr) = @_;
320 print "$body\n"; 346 print "$body\n";
… …
352 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 378 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
353 379
354 _slot_schedule $_[0]; 380 _slot_schedule $_[0];
355} 381}
356 382
383# extract cookies from jar
384sub cookie_jar_extract($$$$) {
385 my ($jar, $uscheme, $uhost, $upath) = @_;
386
387 %$jar = () if $jar->{version} != 1;
388
389 my @cookies;
390
391 while (my ($chost, $paths) = each %$jar) {
392 next unless ref $paths;
393
394 if ($chost =~ /^\./) {
395 next unless $chost eq substr $uhost, -length $chost;
396 } elsif ($chost =~ /\./) {
397 next unless $chost eq $uhost;
398 } else {
399 next;
400 }
401
402 while (my ($cpath, $cookies) = each %$paths) {
403 next unless $cpath eq substr $upath, 0, length $cpath;
404
405 while (my ($cookie, $kv) = each %$cookies) {
406 next if $uscheme ne "https" && exists $kv->{secure};
407
408 if (exists $kv->{expires}) {
409 if (AE::now > parse_date ($kv->{expires})) {
410 delete $cookies->{$cookie};
411 next;
412 }
413 }
414
415 my $value = $kv->{value};
416
417 if ($value =~ /[=;,[:space:]]/) {
418 $value =~ s/([\\"])/\\$1/g;
419 $value = "\"$value\"";
420 }
421
422 push @cookies, "$cookie=$value";
423 }
424 }
425 }
426
427 \@cookies
428}
429
430# parse set_cookie header into jar
431sub cookie_jar_set_cookie($$$) {
432 my ($jar, $set_cookie, $uhost) = @_;
433
434 for ($set_cookie) {
435 # parse NAME=VALUE
436 my @kv;
437
438 # expires is not http-compliant in the original cookie-spec,
439 # we support the official date format and some extensions
440 while (
441 m{
442 \G\s*
443 (?:
444 expires \s*=\s* ([A-Z][a-z][a-z]+,\ [^,;]+)
445 | ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )
446 )
447 }gcxsi
448 ) {
449 my $name = $2;
450 my $value = $4;
451
452 unless (defined $name) {
453 # expires
454 $name = "expires";
455 $value = $1;
456 } elsif (!defined $value) {
457 # quoted
458 $value = $3;
459 $value =~ s/\\(.)/$1/gs;
460 }
461
462 push @kv, lc $name, $value;
463
464 last unless /\G\s*;/gc;
465 }
466
467 last unless @kv;
468
469 my $name = shift @kv;
470 my %kv = (value => shift @kv, @kv);
471
472 $kv{expires} ||= format_date (AE::now + $kv{"max-age"})
473 if exists $kv{"max-age"};
474
475 my $cdom;
476 my $cpath = (delete $kv{path}) || "/";
477
478 if (exists $kv{domain}) {
479 $cdom = delete $kv{domain};
480
481 $cdom =~ s/^\.?/./; # make sure it starts with a "."
482
483 next if $cdom =~ /\.$/;
484
485 # this is not rfc-like and not netscape-like. go figure.
486 my $ndots = $cdom =~ y/.//;
487 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
488 } else {
489 $cdom = $uhost;
490 }
491
492 # store it
493 $jar->{version} = 1;
494 $jar->{$cdom}{$cpath}{$name} = \%kv;
495
496 redo if /\G\s*,/gc;
497 }
498}
499
500# continue to parse $_ for headers and place them into the arg
501sub parse_hdr() {
502 my %hdr;
503
504 # things seen, not parsed:
505 # p3pP="NON CUR OTPi OUR NOR UNI"
506
507 $hdr{lc $1} .= ",$2"
508 while /\G
509 ([^:\000-\037]*):
510 [\011\040]*
511 ((?: [^\012]+ | \012[\011\040] )*)
512 \012
513 /gxc;
514
515 /\G$/
516 or return;
517
518 # remove the "," prefix we added to all headers above
519 substr $_, 0, 1, ""
520 for values %hdr;
521
522 \%hdr
523}
524
357our $qr_nlnl = qr{(?<![^\012])\015?\012}; 525our $qr_nlnl = qr{(?<![^\012])\015?\012};
358 526
359our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 }; 527our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
360our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" }; 528our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
361 529
… …
411 579
412 $upath =~ s%^/?%/%; 580 $upath =~ s%^/?%/%;
413 581
414 # cookie processing 582 # cookie processing
415 if (my $jar = $arg{cookie_jar}) { 583 if (my $jar = $arg{cookie_jar}) {
416 %$jar = () if $jar->{version} != 1; 584 my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
417 585
418 my @cookie;
419
420 while (my ($chost, $v) = each %$jar) {
421 if ($chost =~ /^\./) {
422 next unless $chost eq substr $uhost, -length $chost;
423 } elsif ($chost =~ /\./) {
424 next unless $chost eq $uhost;
425 } else {
426 next;
427 }
428
429 while (my ($cpath, $v) = each %$v) {
430 next unless $cpath eq substr $upath, 0, length $cpath;
431
432 while (my ($k, $v) = each %$v) {
433 next if $uscheme ne "https" && exists $v->{secure};
434 my $value = $v->{value};
435 $value =~ s/([\\"])/\\$1/g;
436 push @cookie, "$k=\"$value\"";
437 }
438 }
439 }
440
441 $hdr{cookie} = join "; ", @cookie 586 $hdr{cookie} = join "; ", @$cookies
442 if @cookie; 587 if @$cookies;
443 } 588 }
444 589
445 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path 590 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
446 591
447 if ($proxy) { 592 if ($proxy) {
… …
455 } else { 600 } else {
456 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath); 601 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
457 } 602 }
458 603
459 # leave out fragment and query string, just a heuristic 604 # leave out fragment and query string, just a heuristic
460 $hdr{referer} ||= "$uscheme://$uauthority$upath" unless exists $hdr{referer}; 605 $hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
461 $hdr{"user-agent"} ||= $USERAGENT unless exists $hdr{"user-agent"}; 606 $hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
462 607
463 $hdr{"content-length"} = length $arg{body} 608 $hdr{"content-length"} = length $arg{body}
464 if length $arg{body} || $method ne "GET"; 609 if length $arg{body} || $method ne "GET";
465 610
611 $hdr{connection} = "close TE"; #1.1
612 $hdr{te} = "trailers" unless exists $hdr{te}; #1.1
613
466 my %state = (connect_guard => 1); 614 my %state = (connect_guard => 1);
467 615
468 _get_slot $uhost, sub { 616 _get_slot $uhost, sub {
469 $state{slot_guard} = shift; 617 $state{slot_guard} = shift;
470 618
471 return unless $state{connect_guard}; 619 return unless $state{connect_guard};
620
621 my $ae_error = 595; # connecting
472 622
473 my $connect_cb = sub { 623 my $connect_cb = sub {
474 $state{fh} = shift 624 $state{fh} = shift
475 or do { 625 or do {
476 my $err = "$!"; 626 my $err = "$!";
477 %state = (); 627 %state = ();
478 return $cb->(undef, { @pseudo, Status => 599, Reason => $err }); 628 return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
479 }; 629 };
480
481 pop; # free memory, save a tree
482 630
483 return unless delete $state{connect_guard}; 631 return unless delete $state{connect_guard};
484 632
485 # get handle 633 # get handle
486 $state{handle} = new AnyEvent::Handle 634 $state{handle} = new AnyEvent::Handle
… …
489 tls_ctx => $arg{tls_ctx}, 637 tls_ctx => $arg{tls_ctx},
490 # these need to be reconfigured on keepalive handles 638 # these need to be reconfigured on keepalive handles
491 timeout => $timeout, 639 timeout => $timeout,
492 on_error => sub { 640 on_error => sub {
493 %state = (); 641 %state = ();
494 $cb->(undef, { @pseudo, Status => 599, Reason => $_[2] }); 642 $cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
495 }, 643 },
496 on_eof => sub { 644 on_eof => sub {
497 %state = (); 645 %state = ();
498 $cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" }); 646 $cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
499 }, 647 },
500 ; 648 ;
501 649
502 # limit the number of persistent connections 650 # limit the number of persistent connections
503 # keepalive not yet supported 651 # keepalive not yet supported
… …
505# ++$KA_COUNT{$_[1]}; 653# ++$KA_COUNT{$_[1]};
506# $state{handle}{ka_count_guard} = AnyEvent::Util::guard { 654# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
507# --$KA_COUNT{$_[1]} 655# --$KA_COUNT{$_[1]}
508# }; 656# };
509# $hdr{connection} = "keep-alive"; 657# $hdr{connection} = "keep-alive";
510# } else {
511 delete $hdr{connection};
512# } 658# }
513 659
514 $state{handle}->starttls ("connect") if $rscheme eq "https"; 660 $state{handle}->starttls ("connect") if $rscheme eq "https";
515 661
516 # handle actual, non-tunneled, request 662 # handle actual, non-tunneled, request
517 my $handle_actual_request = sub { 663 my $handle_actual_request = sub {
664 $ae_error = 596; # request phase
665
518 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls}; 666 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
519 667
520 # send request 668 # send request
521 $state{handle}->push_write ( 669 $state{handle}->push_write (
522 "$method $rpath HTTP/1.0\015\012" 670 "$method $rpath HTTP/1.1\015\012"
523 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) 671 . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
524 . "\015\012" 672 . "\015\012"
525 . (delete $arg{body}) 673 . (delete $arg{body})
526 ); 674 );
527 675
… …
529 return unless %state; 677 return unless %state;
530 678
531 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use 679 %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
532 680
533 # status line and headers 681 # status line and headers
534 $state{handle}->push_read (line => $qr_nlnl, sub { 682 $state{read_response} = sub {
535 my $keepalive = pop;
536
537 for ("$_[1]") { 683 for ("$_[1]") {
538 y/\015//d; # weed out any \015, as they show up in the weirdest of places. 684 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
539 685
540 /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc 686 /^HTTP\/0*([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/gxci
541 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" })); 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;
542 696
543 push @pseudo, 697 push @pseudo,
544 HTTPVersion => $1, 698 HTTPVersion => $1,
545 Status => $2, 699 Status => $2,
546 Reason => $3, 700 Reason => $3,
547 ; 701 ;
548 702
549 # things seen, not parsed: 703 my $hdr = parse_hdr
550 # p3pP="NON CUR OTPi OUR NOR UNI"
551
552 $hdr{lc $1} .= ",$2"
553 while /\G
554 ([^:\000-\037]*):
555 [\011\040]*
556 ((?: [^\012]+ | \012[\011\040] )*)
557 \012
558 /gxc;
559
560 /\G$/
561 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" })); 704 or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
705
706 %hdr = (%$hdr, @pseudo);
562 } 707 }
563
564 # remove the "," prefix we added to all headers above
565 substr $_, 0, 1, ""
566 for values %hdr;
567
568 # patch in all pseudo headers
569 %hdr = (%hdr, @pseudo);
570 708
571 # redirect handling 709 # redirect handling
572 # microsoft and other shitheads don't give a shit for following standards, 710 # microsoft and other shitheads don't give a shit for following standards,
573 # try to support some common forms of broken Location headers. 711 # try to support some common forms of broken Location headers.
574 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { 712 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
… …
588 726
589 if ($recurse) { 727 if ($recurse) {
590 my $status = $hdr{Status}; 728 my $status = $hdr{Status};
591 729
592 # industry standard is to redirect POST as GET for 730 # industry standard is to redirect POST as GET for
593 # 301, 302 and 303, in contrast to http/1.0 and 1.1. 731 # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
594 # also, the UA should ask the user for 301 and 307 and POST, 732 # also, the UA should ask the user for 301 and 307 and POST,
595 # industry standard seems to be to simply follow. 733 # industry standard seems to be to simply follow.
596 # we go with the industry standard. 734 # we go with the industry standard.
597 if ($status == 301 or $status == 302 or $status == 303) { 735 if ($status == 301 or $status == 302 or $status == 303) {
598 # HTTP/1.1 is unclear on how to mutate the method 736 # HTTP/1.1 is unclear on how to mutate the method
… …
602 $redirect = 1; 740 $redirect = 1;
603 } 741 }
604 } 742 }
605 743
606 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive]) 744 my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
745 my $may_keep_alive = $_[3];
746
607 $state{handle}->destroy if $state{handle}; 747 $state{handle}->destroy if $state{handle};
608 %state = (); 748 %state = ();
609 749
610 if (defined $_[1]) { 750 if (defined $_[1]) {
611 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1]; 751 $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
612 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2]; 752 $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
613 } 753 }
614 754
615 # set-cookie processing 755 # set-cookie processing
616 if ($arg{cookie_jar}) { 756 if ($arg{cookie_jar}) {
617 for ($hdr{"set-cookie"}) { 757 cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost;
618 # parse NAME=VALUE
619 my @kv;
620
621 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
622 my $name = $1;
623 my $value = $3;
624
625 unless ($value) {
626 $value = $2;
627 $value =~ s/\\(.)/$1/gs;
628 }
629
630 push @kv, $name => $value;
631
632 last unless /\G\s*;/gc;
633 }
634
635 last unless @kv;
636
637 my $name = shift @kv;
638 my %kv = (value => shift @kv, @kv);
639
640 my $cdom;
641 my $cpath = (delete $kv{path}) || "/";
642
643 if (exists $kv{domain}) {
644 $cdom = delete $kv{domain};
645
646 $cdom =~ s/^\.?/./; # make sure it starts with a "."
647
648 next if $cdom =~ /\.$/;
649
650 # this is not rfc-like and not netscape-like. go figure.
651 my $ndots = $cdom =~ y/.//;
652 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
653 } else {
654 $cdom = $uhost;
655 }
656
657 # store it
658 $arg{cookie_jar}{version} = 1;
659 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
660
661 redo if /\G\s*,/gc;
662 }
663 } 758 }
664 759
665 if ($redirect && exists $hdr{location}) { 760 if ($redirect && exists $hdr{location}) {
666 # we ignore any errors, as it is very common to receive 761 # we ignore any errors, as it is very common to receive
667 # Content-Length != 0 but no actual body 762 # Content-Length != 0 but no actual body
… …
675 } else { 770 } else {
676 $cb->($_[0], \%hdr); 771 $cb->($_[0], \%hdr);
677 } 772 }
678 }; 773 };
679 774
775 $ae_error = 597; # body phase
776
680 my $len = $hdr{"content-length"}; 777 my $len = $hdr{"content-length"};
681 778
682 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) { 779 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
683 $finish->(undef, 598 => "Request cancelled by on_header"); 780 $finish->(undef, 598 => "Request cancelled by on_header");
684 } elsif ( 781 } elsif (
… …
687 or (defined $len && !$len) 784 or (defined $len && !$len)
688 ) { 785 ) {
689 # no body 786 # no body
690 $finish->("", undef, undef, 1); 787 $finish->("", undef, undef, 1);
691 } else { 788 } else {
692 # body handling, four different code paths 789 # body handling, many different code paths
693 # for want_body_handle, on_body (2x), normal (2x) 790 # - no body expected
694 # we might read too much here, but it does not matter yet (no pipelining) 791 # - want_body_handle
792 # - te chunked
793 # - 2x length known (with or without on_body)
794 # - 2x length not known (with or without on_body)
695 if (!$redirect && $arg{want_body_handle}) { 795 if (!$redirect && $arg{want_body_handle}) {
696 $_[0]->on_eof (undef); 796 $_[0]->on_eof (undef);
697 $_[0]->on_error (undef); 797 $_[0]->on_error (undef);
698 $_[0]->on_read (undef); 798 $_[0]->on_read (undef);
699 799
700 $finish->(delete $state{handle}); 800 $finish->(delete $state{handle});
701 801
802 } elsif ($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 => $read_chunk);
847
702 } elsif ($arg{on_body}) { 848 } elsif ($arg{on_body}) {
703 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
704 if ($len) { 849 if ($len) {
705 $_[0]->on_read (sub { 850 $_[0]->on_read (sub {
706 $len -= length $_[0]{rbuf}; 851 $len -= length $_[0]{rbuf};
707 852
708 $arg{on_body}(delete $_[0]{rbuf}, \%hdr) 853 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
709 or $finish->(undef, 598 => "Request cancelled by on_body"); 854 or return $finish->(undef, 598 => "Request cancelled by on_body");
710 855
711 $len > 0 856 $len > 0
712 or $finish->("", undef, undef, 1); 857 or $finish->("", undef, undef, 1);
713 }); 858 });
714 } else { 859 } else {
… …
722 } 867 }
723 } else { 868 } else {
724 $_[0]->on_eof (undef); 869 $_[0]->on_eof (undef);
725 870
726 if ($len) { 871 if ($len) {
727 $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
728 $_[0]->on_read (sub { 872 $_[0]->on_read (sub {
729 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1) 873 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
730 if $len <= length $_[0]{rbuf}; 874 if $len <= length $_[0]{rbuf};
731 }); 875 });
732 } else { 876 } else {
733 $_[0]->on_error (sub { 877 $_[0]->on_error (sub {
734 ($! == Errno::EPIPE || !$!) 878 ($! == Errno::EPIPE || !$!)
735 ? $finish->(delete $_[0]{rbuf}) 879 ? $finish->(delete $_[0]{rbuf})
736 : $finish->(undef, 599 => $_[2]); 880 : $finish->(undef, $ae_error => $_[2]);
737 }); 881 });
738 $_[0]->on_read (sub { }); 882 $_[0]->on_read (sub { });
739 } 883 }
740 } 884 }
741 } 885 }
742 }); 886 };
887
888 $state{handle}->push_read (line => $qr_nlnl, $state{read_response});
743 }; 889 };
744 890
745 # now handle proxy-CONNECT method 891 # now handle proxy-CONNECT method
746 if ($proxy && $uscheme eq "https") { 892 if ($proxy && $uscheme eq "https") {
747 # oh dear, we have to wrap it into a connect request 893 # oh dear, we have to wrap it into a connect request
… …
819Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP 965Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
820Date (RFC 2616). 966Date (RFC 2616).
821 967
822=item $timestamp = AnyEvent::HTTP::parse_date $date 968=item $timestamp = AnyEvent::HTTP::parse_date $date
823 969
824Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX 970Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
971bunch of minor variations of those, and returns the corresponding POSIX
825timestamp, or C<undef> if the date cannot be parsed. 972timestamp, or C<undef> if the date cannot be parsed.
826 973
827=item $AnyEvent::HTTP::MAX_RECURSE 974=item $AnyEvent::HTTP::MAX_RECURSE
828 975
829The default value for the C<recurse> request parameter (default: C<10>). 976The default value for the C<recurse> request parameter (default: C<10>).
… …
869sub parse_date($) { 1016sub parse_date($) {
870 my ($date) = @_; 1017 my ($date) = @_;
871 1018
872 my ($d, $m, $y, $H, $M, $S); 1019 my ($d, $m, $y, $H, $M, $S);
873 1020
874 if ($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$/) { 1021 if ($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$/) {
875 # RFC 822/1123, required by RFC 2616 1022 # RFC 822/1123, required by RFC 2616 (with " ")
1023 # cookie dates (with "-")
1024
876 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6); 1025 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
877 1026
878 } elsif ($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$/) { 1027 } elsif ($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$/) {
879 # RFC 850 1028 # RFC 850
880 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6); 1029 ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
881 1030
882 } elsif ($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])$/) { 1031 } elsif ($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])$/) {
883 # ISO C's asctime 1032 # ISO C's asctime
884 ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5); 1033 ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
885 } 1034 }
886 # other formats fail in the loop below 1035 # other formats fail in the loop below
887 1036

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